1. Answer: (A) source confusion
Explanation: Repeated endorsement of an incorrect option in eyewitness questioning disrupts source monitoring, leading to source confusion. As per the misinformation effect and source-monitoring framework (Johnson et al.), individuals may misattribute post-event suggestions as actual memories. Repetition increases familiarity of the incorrect option (familiarity heuristic), making it seem more truthful. Over time, this blends false information with real memory traces, impairing accurate recall. It is not perceptual closure, retrograde amnesia, or semantic blocking, but a failure in memory source attribution.

2. Answer: (B) Edward Tolman
Explanation: This describes latent learning, where learning occurs without reinforcement but appears when motivation is introduced. Edward Tolman demonstrated this in rat maze experiments, proposing cognitive maps and rejecting strict S–R behaviorism. Unlike Thorndike, Hull, or Guthrie, Tolman emphasized internal cognitive representations and purposive behaviorism.

3. Answer: (B) availability heuristic
Explanation: The availability heuristic is a cognitive shortcut where individuals judge the likelihood of events based on how easily relevant examples come to mind. Information that is recent, vivid, or emotionally salient is more easily retrieved from memory, which leads to biased probability judgments. This often results in overestimation of frequency or risk. It differs from the representativeness heuristic (based on similarity to prototypes), anchoring effect (influence of initial reference values), and confirmation bias (tendency to favor belief-consistent information).

4. Answer: (B) lexical-semantic accessibility following repetition
Explanation: Semantic satiation refers to the temporary loss or reduction of meaning of a word after it is repeated many times in quick succession. It reflects a short-term disruption in lexical-semantic processing, where repeated activation leads to reduced semantic responsiveness and weaker access to meaning. It does not involve phonological rehearsal, procedural learning, or episodic memory consolidation. Instead, it specifically reflects transient inhibition or fatigue in accessing semantic representations of repeated words.

5. Answer: (C) change blindness
Explanation: Change blindness is the failure to detect significant changes in a visual scene when those changes occur during brief interruptions or when attention is not focused on the changing element. It highlights the limitations of visual attention and the need for focused processing in conscious perception. It differs from inattentional blindness (missing unexpected stimuli due to diverted attention), binocular rivalry (alternating perception of incompatible images), and perceptual defense (avoidance of threatening stimuli perception).

6. Answer: (C) weapon focus
Explanation: The weapon focus effect occurs when high emotional arousal in threatening situations directs attention toward a central threat (e.g., a weapon), reducing memory for peripheral details like the environment or other events. This happens because attentional resources are concentrated on emotionally salient stimuli. It differs from mood congruence (mood-consistent memory), flashbulb memory (vivid memory of surprising public events), and state-dependent memory (retrieval influenced by internal states). Hence, enhanced memory for the weapon with impaired peripheral recall reflects the weapon focus effect.

7. Answer: (B) Response criterion
Explanation: In Signal Detection Theory, a conservative bias refers to the tendency to respond “no” unless there is strong evidence that a stimulus is present. This decision tendency is governed by the response criterion, which is the internal threshold an individual sets for deciding whether a signal exists under uncertainty. A more conservative criterion means the person requires stronger sensory evidence before saying “yes, the stimulus is present,” reducing false alarms but increasing misses.

8. Answer: (B) retrieval competition
Explanation: Interference theory explains forgetting as a result of retrieval competition among memory traces rather than simple decay. Memories are not lost but become inaccessible because similar or competing traces interfere during recall. This includes proactive interference (old information disrupts new learning) and retroactive interference (new information disrupts old recall). The core mechanism is competition between overlapping memory cues, which reduces access to the target memory.

9. Answer: (A) unequal variance across groups
Explanation: Homoscedasticity is the assumption that variances of the dependent variable are equal across groups or levels of an independent variable. It is a key assumption in parametric tests like t-test and ANOVA. When variances differ substantially between groups, the assumption is violated, leading to heteroscedasticity, which can bias standard errors and inflate Type I or Type II error rates depending on sample structure.

10. Answer: b) A-2, B-3, C-4, D-1
Explanation: (a) Halo effect → (II)
Halo effect is a cognitive bias in which a single positive characteristic (e.g., attractiveness, intelligence, or friendliness) influences the overall evaluation of a person, leading to a generalized favorable impression.
(b) Self-handicapping → (III)
Self-handicapping refers to creating or claiming obstacles before performance (e.g., procrastination, excuses) to protect self-esteem by providing an external attribution for potential failure.
(c) Cognitive dissonance → (IV)
Cognitive dissonance is the psychological discomfort arising from holding inconsistent cognitions, attitudes, or behaviors, motivating individuals to reduce inconsistency.
(d) False uniqueness effect → (I)
False uniqueness effect involves underestimating how common one’s abilities or positive traits are, leading individuals to believe their strengths are more rare than they actually are.

11. Answer: (C) confirmation bias
Explanation: Confirmation bias is the tendency to selectively seek, interpret, and prioritize information that supports existing beliefs while ignoring or downplaying contradictory evidence, even when objective data suggests otherwise. It operates through selective attention and biased assimilation of evidence, helping maintain prior beliefs despite disconfirming information. It is a key cognitive bias in judgment and decision-making. It differs from outcome bias (judging decisions by results), framing effect (influence of presentation format), and hindsight bias (seeing past events as more predictable after knowing the outcome).

12. Answer: (B) proactive interference
Explanation: Proactive interference occurs when previously learned information disrupts the learning or recall of new material. Here, earlier learned statistical formulas interfere with memorizing new research design concepts, showing that older memory traces are affecting the encoding and retrieval of newer information. This is common when materials are similar in nature. It differs from proactive facilitation (old learning helps new learning), retrieval suppression (intentional inhibition), and encoding specificity (context-dependent recall).

13. Answer: (B) continuity
Explanation: The Gestalt principle of continuity (good continuation) refers to the perceptual tendency to organize stimuli into smooth, continuous patterns rather than abrupt or fragmented ones. The visual system prefers lines and contours that follow the least disruptive path, leading to perception of uninterrupted patterns even when parts are hidden. This differs from similarity (grouping by shared features), closure (filling gaps to form complete figures), and symmetry (preference for balanced forms).

14. Answer: (B) stability, globality, and internality of causation
Explanation: The reformulated learned helplessness theory (Abramson, Seligman, and Teasdale) expanded the original model by adding attributional style dimensions to explain vulnerability to helplessness and depression. These dimensions are internality (self vs external cause), stability (stable vs changeable cause), and globality (affects many vs specific domains). Attributing negative events to internal, stable, and global causes increases the likelihood of persistent helplessness and depressive thinking. This revision emphasized cognitive appraisal rather than just uncontrollability.

15. Answer: (C) Extreme skewness
Explanation: The assumption of normal distribution requires data to be symmetrical with a bell-shaped curve, where mean, median, and mode are approximately equal. Extreme skewness violates this assumption due to strong asymmetry in the distribution, distorting measures of central tendency and affecting parametric statistical tests. Homogeneous variance relates to homoscedasticity, symmetry supports normality, and linear association refers to relationships between variables, not distribution shape.

16. Answer: (C) subsequent information
Explanation: This describes the misinformation effect, where memory for an original event is altered after exposure to misleading subsequent information. Source monitoring theory explains this as a failure to distinguish between information from the original event and later inputs. During retrieval, memory becomes reconstructively integrated with post-event details, leading to distorted recall and source confusion. Procedural rehearsal relates to skill learning, semantic priming to activation of related meanings, and perceptual narrowing to developmental perceptual constraints.

17. Answer: (C) dopamine
Explanation: Degeneration of the substantia nigra pars compacta reduces dopamine in the nigrostriatal pathway of the basal ganglia. Dopamine regulates motor control by balancing the direct and indirect pathways, enabling smooth initiation and coordination of movement. Its loss disrupts this balance, producing symptoms like bradykinesia, rigidity, and resting tremor (as in Parkinson’s disease). Serotonin is linked to mood regulation, acetylcholine to neuromuscular and cortical functions, and glutamate to excitatory transmission.

18. Answer: (A) conceptually overlapping semantic categories
Explanation: Proactive interference occurs when previously learned information disrupts the learning or recall of new material, especially when both involve conceptually overlapping semantic categories. High similarity increases competition among memory traces during encoding and retrieval, producing cue overload where the same cues activate multiple related traces, reducing discrimination and recall accuracy. Emotionally incongruent autobiographical events involve affective mismatch, perceptually degraded visuospatial templates concern perceptual encoding limits, and motivationally irrelevant procedural sequences are less dependent on semantic similarity.

19. Answer: (B) response perseveration
Explanation: Response perseveration is the tendency to rigidly repeat a previously learned response or strategy even when task demands change and it becomes ineffective. Overlearning strengthens automaticity, reducing cognitive flexibility and impairing set-shifting, so individuals continue using the old strategy despite negative feedback. This is seen in problem-solving rigidity and executive control limitations. It differs from latent inhibition (reduced learning about previously irrelevant stimuli), functional fixedness (failure to see alternative uses of objects), and semantic satiation (temporary loss of meaning after repetition).

20. Answer: (B) astereognosis
Explanation: Astereognosis is the inability to recognize or identify familiar objects through touch despite intact basic somatosensory functions like touch, pressure, and proprioception. It reflects a higher-order sensory integration deficit, usually linked to parietal lobe dysfunction, where tactile inputs cannot be synthesized into meaningful object representations. It differs from apraxia (motor planning impairment), dysarthria (speech articulation disorder), and hemineglect (inattention to one side of space).

21. Answer: (A) Max Wertheimer
Explanation: The phi phenomenon, a core demonstration in Gestalt psychology, was first systematically studied by Max Wertheimer. It describes the illusion of apparent motion when two stationary stimuli are presented in rapid succession, creating the perception of movement without actual motion. His 1912 work on apparent motion established that perception is holistic rather than a sum of discrete sensory inputs, supporting Gestalt principles. Köhler focused on insight learning, Koffka on theoretical integration of Gestalt ideas, and Lewin on field theory in social psychology.

22. Answer: (B) readiness potential
Explanation: The readiness potential (Bereitschaftspotential) is a slow, negative EEG shift reflecting preparatory motor activity in the supplementary motor area and premotor cortex before voluntary movement. Libet’s experiments showed this neural activity begins several hundred milliseconds before conscious awareness of intention, suggesting motor preparation precedes conscious volition. It is distinct from lexical priming (language facilitation), sensory gating (filtering irrelevant input), and feature integration (binding perceptual features).

23. Answer: (B) autonomic anxiety
Explanation: In OCD, compulsive hand-washing is maintained by negative reinforcement through temporary reduction of autonomic anxiety. The behavior reduces physiological arousal linked to sympathetic activation (e.g., tension, distress, increased heart rate), which reinforces the compulsion despite awareness of its irrationality. This short-term relief strengthens the compulsive cycle. It differs from perceptual distortion (sensory misinterpretation), associative amnesia (memory deficit), and cognitive rigidity (inflexibility in thinking).

24. Answer: (B) intelligence ratio
Explanation: The original conceptualization of IQ was based on the intelligence ratio, developed from Binet–Simon ideas and formalized by Stern. It was calculated as IQ = (Mental Age / Chronological Age) × 100, directly comparing developmental mental performance with expected age level. This approach reflects the gap between actual and expected cognitive development. It was later replaced by deviation IQ due to scaling issues in adults. Deviation quotient is based on standard scores, aptitude index measures specific abilities, and cognitive percentile reflects relative ranking in a distribution.

25. Answer: (C) age-related neurocognitive decline processes
Explanation: Fluid intelligence involves novel problem-solving, abstract reasoning, and adaptive thinking independent of prior knowledge. It is particularly sensitive to age-related neurocognitive decline, especially due to reduced processing speed, working memory capacity, and frontal lobe functioning. As a result, fluid intelligence typically declines earlier in adulthood. In contrast, crystallized intelligence is relatively stable or may improve with learning and experience. Educational attainment and sociolinguistic exposure mainly strengthen crystallized intelligence, not fluid reasoning ability.

26. Answer: (B) person-centered therapy
Explanation: Unconditional positive regard is a core concept in Carl Rogers’ person-centered therapy, where the therapist provides consistent, non-judgmental, and accepting empathy regardless of the client’s thoughts or behaviors. This helps reduce conditions of worth and promotes congruence between the real and ideal self, supporting psychological growth and self-actualization. It differs from rational emotive therapy (focus on disputing irrational beliefs), gestalt therapy (present-moment experiential awareness), and existential therapy (focus on meaning, freedom, and responsibility).

27. Answer: (C) context-dependent retrieval
Explanation: Context-dependent retrieval refers to improved memory recall when the external environment at retrieval matches the encoding context. Revisiting one’s old school reinstates environmental cues such as spatial and sensory details associated with original learning experiences, enhancing autobiographical memory access. This is explained by Tulving’s encoding specificity principle, which states that retrieval is more effective when encoding and retrieval cues overlap. It differs from state-dependent learning (internal physiological states), levels of processing (depth of encoding), and distributed rehearsal (spaced repetition effects).

28. Answer: (A) psychoticism
Explanation: In Eysenck’s personality model, psychoticism is associated with aggressiveness, hostility, impulsivity, emotional coldness, and antisocial tendencies, reflecting low empathy and low social conformity. A profile showing strong social approval needs, conformity, and interpersonal warmth is essentially the opposite of high psychoticism. Introversion relates to sociability/arousal, openness involves curiosity and exploration, and agreeableness reflects cooperation and kindness, but psychoticism most directly captures antisocial and low-empathy traits, making it the clearest inverse match.

29. Answer: A) A-2, B-3, C-4, D-1
Explanation: (a) Sri Aurobindo → (II)
Sri Aurobindo developed Integral Psychology, emphasizing the evolution of consciousness and spiritual transformation as central to human psychological development.
(b) Durganand Sinha → (III)
Durganand Sinha contributed to cross-cultural social psychology in the Indian context, focusing on indigenous approaches and culturally grounded psychological understanding.
(c) Anand Paranjpe → (IV)
Anand Paranjpe is known for work on selfhood in Indian philosophical psychology, integrating Indian philosophical traditions with modern psychological concepts of self.
(d) N. N. Sengupta → (I)
N. N. Sengupta is associated with the development of experimental psychology in India, contributing to early laboratory-based psychological research traditions.

30. Answer: (B) diffusion of responsibility
Explanation: Diffusion of responsibility refers to a social psychological effect where individuals are less likely to help in emergency situations when others are present, as responsibility is perceived to be shared among the group. This reduces personal accountability and lowers the likelihood of intervention, as shown in the bystander effect research by Latané and Darley. Role ambiguity may create uncertainty but does not directly suppress helping behavior, while evaluative apprehension can sometimes increase helping due to impression management, and interpersonal attraction generally promotes prosocial action.

31. Answer: (B) contextual encoding
Explanation: Improved recall when original environmental cues are reinstated reflects context-dependent memory, grounded in contextual encoding principles. Information is encoded along with environmental features, which become part of the memory trace. When the same context is recreated at retrieval, these cues are reactivated, facilitating access to stored information. This differs from procedural priming (skill facilitation), perceptual narrowing (developmental reduction in perceptual sensitivity), and semantic networking (meaning-based associative structure).

32. Answer: (C) conventional morality
Explanation: In Kohlberg’s theory of moral development, conventional morality is defined by adherence to social norms, rules, and laws. Moral reasoning is guided by the need for social approval (good boy–good girl orientation) and maintaining social order (law-and-order orientation). Judgments are based on conformity and authority rather than personal ethical principles. Preconventional morality is driven by reward and punishment, postconventional morality is based on abstract principles, and “autonomous morality” is not a formal Kohlberg stage.

33. Answer: (A) Both A and R are true and R correctly explains A
Explanation: Assertion (A) is correct because eyewitness memory is highly susceptible to post-event misinformation, which can distort original recall (misinformation effect). Reason (R) is also correct as memory is reconstructive, meaning individuals actively rebuild past events using stored fragments combined with later information. This reconstructive process explains why post-event details can be integrated into original memory, leading to distortion. Thus, R provides the correct cognitive explanation for A.

34. Answer: (B) Charles Horton Cooley
Explanation: The “looking-glass self” was introduced by Charles Horton Cooley. It explains that a person’s self-concept develops through social interaction and perceived judgments of others. According to this idea, individuals imagine how they appear to others, imagine how others evaluate them, and then develop feelings about themselves based on these imagined evaluations. Thus, the self is essentially shaped through a “mirror” of society’s perceptions.

35. Answer: (C) availability heuristic
Explanation: The availability heuristic is a cognitive shortcut where judgments about probability or frequency are based on how easily examples come to mind. In situations requiring quick decisions under uncertainty, people rely on vivid, recent, or easily recalled instances, which can make such events seem more likely than they actually are. This reduces cognitive load but often introduces systematic biases. It differs from representational mapping and analogical transfer (similarity-based reasoning) and deductive sequencing (rule-based logical inference), which do not rely on ease of recall.

36. Answer: (C) empirical criterion keying
Explanation: The Minnesota Multiphasic Personality Inventory (MMPI) was developed using the empirical criterion keying method, in which test items were selected based on their ability to differentiate between known diagnostic groups (e.g., clinical vs. non-clinical samples) rather than on theoretical assumptions.

37. Answer: (C) motion aftereffect
Explanation: The waterfall illusion is an example of the motion aftereffect, where prolonged exposure to movement in one direction leads to the perception of motion in the opposite direction when viewing a stationary scene. This occurs due to adaptation of motion-sensitive neurons in the visual cortex (especially area MT/V5), reducing response to the original direction and producing a rebound perception in the opposite direction. It differs from perceptual constancy (stable perception despite changing input), general sensory adaptation, and binocular rivalry.

38. Answer: (B) mood-congruent memory
Explanation: Mood-congruent memory refers to the tendency to recall information that matches one’s current emotional state more easily. In a sad mood, negatively valenced or sad memories are more accessible because mood activates congruent associative networks, enhancing retrieval of similarly toned material. This differs from source monitoring (memory attribution), semantic interference (competition among meanings), and reconstructive retrieval (general reconstruction of memory).

39. Answer: (C) self-serving bias
Explanation: Self-serving bias is the tendency to attribute successes to internal causes (ability, effort) and failures to external causes (luck, difficulty, situation), helping protect self-esteem and maintain a positive self-concept. It is commonly observed in achievement contexts. It differs from false consensus effect (overestimating agreement with others), actor-observer bias (different attributions for self vs others), and halo effect (global impression based on one trait).

40. Answer: (C) variable influence depends on another factor
Explanation:
A statistical interaction effect occurs when the effect of one independent variable on a dependent variable depends on the level of another variable. In other words, the influence of one predictor is conditional on another factor (moderation). For example, stress may affect performance differently depending on social support. It differs from predictor overlap (multicollinearity), causal inference issues, and variance comparisons, which are unrelated to interaction.

41. Answer: (C) patient H.M.
Explanation: Patient H.M. is the classic neuropsychological case demonstrating that bilateral removal of the medial temporal lobes (including the hippocampus) produces severe anterograde amnesia for declarative memory. After surgery for epilepsy, he was unable to form new episodic or semantic memories, while his procedural memory remained intact, showing a clear dissociation between declarative and non-declarative systems. Clive Wearing also had profound amnesia but is not the foundational experimental case, Phineas Gage involved frontal lobe damage affecting personality, and patient Tan is associated with Broca’s aphasia.

42. Answer: (C) superordinate traits
Explanation: In trait theory, especially Cattell’s hierarchical model, personality is organized into levels. Superordinate (source) traits are broad underlying dimensions that organize and influence narrower behavioral tendencies. They provide stability across situations and generate observable surface behaviors. Surface traits are directly observable behaviors, cardinal traits (Allport) are dominant traits shaping most behavior, and defensive patterns are not part of the trait hierarchy.

43. Answer: (A) temporal discounting
Explanation: Temporal discounting refers to the tendency to devalue rewards or outcomes that are delayed in time, leading individuals to prefer smaller immediate rewards over larger delayed ones. In this process, the subjective value of a reward decreases as the delay to its receipt increases, explaining impulsive decision-making such as choosing instant gratification despite better long-term outcomes.

44. Answer: (A) retrieval failure
Explanation: Retrieval failure occurs when information is stored in long-term memory but cannot be accessed at the moment of recall. The key point is that the memory traces are intact, but the problem lies in accessing them due to insufficient cues or interference. This is often explained by the encoding specificity principle, which states that recall is most effective when retrieval conditions match encoding conditions.

45. Answer: (C) grammatical markers
Explanation: Telegraphic speech is an early language stage in which children produce short, content-rich utterances while omitting grammatical function words and inflections. Speech typically includes nouns and verbs but lacks grammatical markers such as articles, prepositions, auxiliary verbs, and tense markers (e.g., “want milk” instead of “I want some milk”). Emotional intonation may still be present, but omission of grammatical markers is the defining feature.

46. Answer: (D) Type I error
Explanation: Conducting multiple independent significance tests without correction increases the probability of incorrectly rejecting a true null hypothesis, leading to inflation of Type I error (false positives). Each additional test raises the overall family-wise error rate, increasing the likelihood of chance-level significant findings. This does not primarily affect statistical power (true positive detection), construct validity, or Type II error (false negatives).

47. Answer: (B) size-distance scaling
Explanation: The moon illusion where the moon appears larger near the horizon than at higher elevations is best explained by size–distance scaling. The visual system uses contextual depth cues (e.g., trees, buildings) to perceive the horizon moon as farther away, and size constancy mechanisms scale up its perceived size accordingly. This differs from Gestalt perceptual organization, binocular convergence (useful for near depth), and retinal accommodation (lens adjustment for near objects).

48. Answer: (B) Young and Helmholtz
Explanation: The trichromatic theory of color vision was proposed by Thomas Young and later refined by Hermann von Helmholtz. It suggests that the retina contains three types of cone receptors sensitive to red, green, and blue wavelengths, and color perception results from their combined activation. This explains color matching and additive color mixing. Opponent-process theory is associated with Hering, while Gibson and Gregory contributed to other perceptual theories, and Wertheimer and Köhler are linked to Gestalt psychology.

49. Answer: D) A is false but R is true
Explanation: Assertion (A) is false because extinction does not permanently eliminate the original learning. Instead, it involves inhibiting or suppressing the conditioned response, meaning the original association still exists in memory. This is why the response can reappear later.
Reason (R) is true because spontaneous recovery refers to the reappearance of an extinguished conditioned response after a rest period, without any new reinforcement. This phenomenon clearly shows that extinction is not permanent.

50. Answer: (A) James–Lange theory
Explanation: Explanation: The James–Lange theory proposes that emotions arise from the perception of physiological changes in the body. A key criticism is that autonomic arousal often persists even after the emotional stimulus has ended, meaning bodily changes are not always tightly linked to the immediate emotional experience. For example, after a threat is removed, heart rate and arousal may remain elevated, yet the intense emotion (fear) has already subsided. This weakens the idea that emotion is simply the perception of current physiological state.

51. Answer: (D) disorganized attachment
Explanation: Panic attacks involve sudden, intense episodes of fear with strong autonomic arousal (e.g., palpitations, sweating, breathlessness) often without clear external triggers. This is explained by hypersensitivity and dysregulation of the brain’s fear circuitry, especially the amygdala and related limbic–brainstem networks, leading to false alarm activation. It differs from conditioned avoidance learning (phobias), semantic memory disruption, and motor inhibition deficits.

52. Answer: (B) fear network hypersensitivity
Explanation: Panic attacks involve sudden episodes of intense fear with strong autonomic arousal (palpitations, sweating, breathlessness) without clear external triggers. This is explained by hypersensitivity and dysregulation of the brain’s fear circuitry, especially the amygdala and related limbic–brainstem networks, leading to false alarm activation of the fear system. It differs from conditioned avoidance learning (phobias), semantic memory disruption, and motor inhibition failure.

53. Answer: (C) sleep terror disorder
Explanation: Sleep terror disorder occurs during non-REM stage N3 (slow-wave sleep) and is characterized by sudden arousal with intense autonomic activation such as screaming, tachycardia, and sweating. The individual appears highly distressed but is difficult to console and typically has complete or partial amnesia for the episode. This distinguishes it from nightmare disorder (REM sleep with recall), REM behavior disorder (dream enactment due to loss of atonia), and nocturnal panic episodes (partial awareness).

54. Answer: (B) transference
Explanation: Transference refers to the unconscious redirection of emotions, desires, and expectations originally experienced toward significant early-life figures onto the therapist in psychoanalytic therapy. It is a central mechanism in psychoanalysis, where past relational patterns are re-experienced in the therapeutic relationship. Counterconditioning involves replacing maladaptive responses, displacement refers to shifting emotions onto a less threatening target, and resistance involves opposition to therapeutic progress or insight. Therefore, the repeated emotional redirection onto the therapist is best explained by transference.

55. Answer: (B) practical adaptation
Explanation: Sternberg’s triarchic theory of intelligence includes analytical, creative, and practical intelligence, with practical intelligence referring to the ability to adapt to, shape, and select real-world environments effectively. This distinguishes it from traditional IQ models focused mainly on abstract reasoning. It is not related to unconscious motives (psychoanalytic theory), inherited aptitude (biological determinism), or sensory processing. Hence, real-world adaptive functioning defines the key feature.

56. Answer: (C) Broca’s region
Explanation: Non-fluent, effortful speech with relatively preserved comprehension is characteristic of Broca’s (expressive) aphasia, caused by damage to Broca’s area in the left inferior frontal gyrus. This region is essential for speech production, syntactic processing, and motor planning of language. In contrast, Wernicke’s area damage leads to fluent but meaningless speech with poor comprehension, the angular gyrus is involved in reading/writing integration, and occipitotemporal cortex supports visual object recognition.

57. Answer: (B) Raymond Cattell
Explanation: Raymond Cattell proposed the distinction between fluid intelligence (Gf) and crystallized intelligence (Gc). Fluid intelligence involves novel problem-solving, abstract reasoning, and adaptation to new situations independent of prior learning, while crystallized intelligence reflects accumulated knowledge and experience gained through education and culture. This expanded Spearman’s single general intelligence (g) into a more differentiated structure. Spearman emphasized a single g factor, Guilford proposed the structure-of-intellect model, and Thurstone focused on primary mental abilities.

58. Answer: (C) orbitofrontal cortex
Explanation: The orbitofrontal cortex (OFC), part of the prefrontal cortex, is critical for social judgment, reward evaluation, impulse control, and inhibition of inappropriate behavior. Damage to this region leads to disinhibition, impulsivity, poor decision-making, and socially inappropriate behavior, despite relatively intact memory and general intelligence. In contrast, the occipital cortex is involved in vision, the cerebellar vermis in motor coordination and affect regulation, and the primary somatosensory cortex in tactile processing.

59. Answer: (B) decreased F ratio
Explanation: In ANOVA, the F ratio is calculated as between-group variance divided by within-group variance. If within-group variability increases while between-group differences remain unchanged, the denominator becomes larger, leading to a decrease in the F value. This reduces the likelihood of rejecting the null hypothesis because group differences appear less distinct relative to random variation. Increased F would require either greater between-group variance or reduced within-group variance.

60. Answer: (C) schemas
Explanation: Bartlett’s theory of memory emphasizes that recall is a reconstructive process, where individuals use pre-existing knowledge structures called schemas to interpret and reconstruct information. Memory is not a verbatim reproduction but is shaped by prior knowledge, cultural expectations, and meaning-based organization, often leading to systematic distortions. This differs from chunking (working memory organization), rehearsal loop (working memory component), and imagery coding (dual coding theory).

61. Answer: (B) A-3, B-1, C-4, D-2
Explanation: (A) Introjection → (III) Internalization of external values and standards
Introjection refers to the psychological process where individuals internalize beliefs, values, or attitudes from others into their own personality structure, often without conscious awareness. It is commonly discussed in psychodynamic theory.
(B) Inferiority complex → (I) Feelings of inadequacy motivating compensation
Adler described inferiority complex as persistent feelings of inadequacy that drive individuals to overcompensate or strive for superiority in behavior and achievement.
(C) Collective unconscious → (IV) Shared inherited reservoir of archetypes
Jung’s concept of collective unconscious refers to a universal, inherited layer of the psyche containing archetypes shared across humanity.
(D) Self-efficacy → (II) Belief in ability to perform effectively
Bandura defined self-efficacy as an individual’s belief in their capability to organize and execute actions required to manage situations effectively.

62. Answer: (C) negative symptomatology
Explanation: Negative symptoms of schizophrenia involve a reduction or loss of normal psychological functions, such as affective flattening, alogia (reduced speech), and avolition (lack of goal-directed behavior). These symptoms often persist even when positive symptoms improve, indicating a distinct underlying mechanism. They differ from extrapyramidal symptoms (drug-induced motor side effects), Schneiderian first-rank symptoms (specific positive psychotic experiences), and disorganized behavior (fragmented or incoherent actions).

63. Answer: (B) general intelligence
Explanation: Independence among specific cognitive abilities (verbal, spatial, numerical) challenges the idea of a single underlying factor of intelligence, i.e., general intelligence (g factor) proposed by Spearman. Instead, it supports multifactorial models like Thurstone’s primary mental abilities or Guilford’s structure-of-intellect model. Emotional intelligence and contextual intelligence refer to different domains and do not directly address the structure of cognitive abilities.

64. Answer: (C) cognitive ability
Explanation: Ability-based models of emotional intelligence (e.g., Mayer and Salovey) conceptualize EI as a set of cognitive abilities involved in processing emotional information. These include perceiving emotions, using emotions to facilitate thinking, understanding emotional changes, and managing emotions effectively. This approach treats emotional intelligence as an information-processing capacity rather than a personality trait. In contrast, mixed models (e.g., Bar-On) include traits and competencies, while learned habits and social motives refer to behavioral and motivational constructs.

65. Answer: (C) diffusion of responsibility
Explanation: The bystander effect occurs because individuals are less likely to help when others are present, due to diffusion of responsibility. Responsibility for intervention is perceived as shared among bystanders, reducing personal accountability and lowering helping behavior. When alone, individuals are more likely to act because responsibility is not dispersed. This differs from evaluative apprehension (fear of judgment), social exchange theory (cost–benefit analysis), and reciprocity norms (helping based on expected return).

66. Answer: (C) self-reference effect
Explanation: The self-reference effect shows that information encoded in relation to oneself is remembered better than information processed in other ways (e.g., semantic or structural processing). This occurs because self-referential encoding enhances elaboration, organization, and integration with existing self-schemas, strengthening memory traces. It differs from maintenance rehearsal (simple repetition), episodic buffering (working memory component), and conceptual priming (implicit facilitation without conscious recall).

67. Answer: (B) innate depth perception
Explanation: Gibson’s visual cliff experiment tested whether depth perception is innate or learned. Infants’ reluctance to cross the “cliff” suggests that depth perception emerges early and does not depend entirely on visual experience, supporting biological preparedness. It reflects the ecological approach to perception. This differs from perceptual adaptation (adjustment to altered input), perceptual constancy (stable perception of object properties), and sensory deprivation (lack of stimulation).

68. Answer: (C) misses
Explanation: In signal detection theory, increasing the decision threshold (a more conservative criterion) reduces “yes” responses. This lowers false alarms but increases misses, because actual signals are more likely to be judged as absent. Sensitivity (d′) remains unchanged as it reflects perceptual discriminability, not response bias. Hits may decrease, but the most direct and defining effect of a higher criterion is an increase in misses.

69. Answer: (A) Abraham Maslow
Explanation: Self-actualization is a central concept in Abraham Maslow’s humanistic theory of personality. It refers to the drive to realize one’s full potential, including creativity, autonomy, authenticity, and personal growth, and is positioned at the top of Maslow’s hierarchy of needs. In contrast, Cattell focused on trait structure, Allport on trait theory and functional autonomy, and Eysenck on biologically based personality dimensions.

70. Answer: D) A is false but R is true
Explanation: The Assertion is false because trait theories do not primarily focus on unconscious conflicts. Instead, they emphasize observable, stable, and measurable personality characteristics rather than unconscious psychodynamic processes. This approach is fundamentally different from psychoanalytic theory, which explains behavior in terms of unconscious conflicts. The Reason is true because trait theories focus on consistent and measurable behavioral tendencies across situations and time, often using psychometric methods such as factor analysis. However, R does not justify A since A is incorrect. Therefore, trait theories are descriptive and dimensional rather than conflict-based.

71. Answer: (B) chunking processes
Explanation: Chunking refers to organizing individual pieces of information into larger, meaningful units, which increases the effective capacity of short-term or working memory. By grouping information into structured patterns, cognitive load is reduced and retention improves (e.g., digit grouping in phone numbers). It differs from perceptual defense (avoidance of threatening stimuli), semantic blocking (not a standard mechanism), and retroactive transfer (interference from new learning on old learning).

72. Answer: (B) fear conditioning
Explanation: The amygdala plays a key role in processing threat-related stimuli and forming fear-based associations. Neuroimaging studies show strong amygdala activation during fear conditioning, where neutral cues become associated with aversive outcomes, producing learned fear responses. It is central to emotional salience and rapid defensive reactions. In contrast, reward processing involves the ventral striatum, motor learning involves basal ganglia and cerebellum, and language comprehension involves temporal and frontal cortical regions.

73. Answer: (B) deindividuation
Explanation: Deindividuation refers to a psychological state in which individual self-awareness, accountability, and restraint are reduced in group or highly arousing situations, often leading to impulsive or norm-violating behavior. It is commonly observed in crowds, mobs, or anonymous group settings where personal identity becomes less salient. This reduction in self-monitoring increases conformity to situational cues rather than personal norms. Group polarization involves strengthening of group-shared attitudes, social comparison refers to evaluating oneself against others, and collective attribution is not a standard social psychology construct. Therefore, decreased self-awareness in groups reflects deindividuation.

74. Answer: (A) motivational orientation
Explanation: Jung’s introversion–extraversion concept is based on the direction of psychic energy (libido), where introversion reflects inward-directed energy and extraversion reflects outward engagement with the external world. This reflects a motivational orientation rather than a statistically derived trait structure. In contrast, the Five-Factor Model defines extraversion as a trait dimension derived from lexical and factor-analytic approaches. Biological inheritance, lexical structure, and cognitive rigidity are not the defining distinctions here.

75. Answer: (B) analogical reasoning
Explanation: Analogical reasoning involves transferring relational structures from one domain to another. Applying chess strategy principles to a mathematical problem reflects mapping underlying patterns such as planning, constraints, and optimization onto a new context. This differs from vertical transfer (within-domain skill progression), divergent production (multiple novel ideas), and incidental encoding (unintentional learning).

76. Answer: (B) state mismatch
Explanation: The described pattern failure to recall information during an examination but successful recall later in a relaxed condition indicates a state-dependent retrieval failure due to mismatch between encoding and retrieval states. When physiological or psychological states (e.g., anxiety during exams vs. calmness later) differ between learning and recall, access to memory traces becomes inefficient despite intact storage. Retrieval inhibition refers to competition among memories, implicit learning involves unconscious memory systems, and response habituation refers to decreased responding after repeated stimulation. Therefore, the most accurate Explanation: is state mismatch affecting retrieval efficiency.

77. Answer: (C) no linear relation
Explanation: A correlation coefficient close to zero indicates that there is no systematic linear relationship between two variables, meaning changes in one variable are not linearly associated with changes in the other. However, it does not rule out the possibility of a non-linear relationship. Strong positive or negative correlations require values closer to +1 or −1, respectively. Importantly, correlation does not imply causation, so causal independence cannot be inferred from a near-zero correlation. Therefore, the correct interpretation is absence of a linear relationship.

78. Answer: (B) Kitty Genovese case
Explanation: The bystander effect was strongly inspired by the infamous case of Kitty Genovese murder case, where a woman was reportedly attacked while multiple witnesses failed to intervene or call for help. This event led psychologists John Darley and Bibb Latané to systematically investigate why individuals are less likely to help when others are present. Their experiments demonstrated diffusion of responsibility, where people assume someone else will intervene in emergencies.

79. Answer: (A) REM intrusion
Explanation: Narcolepsy is a sleep disorder characterized by abnormal intrusion of REM sleep features into wakefulness. This includes sudden sleep attacks, cataplexy, sleep paralysis, and hypnagogic hallucinations, all reflecting REM-related processes occurring at inappropriate times. The core neurophysiological mechanism involves dysregulation of REM sleep control systems, often linked to orexin/hypocretin deficiency. Somnambulism (sleepwalking) occurs in non-REM sleep, circadian reversal involves shifted sleep–wake cycles, and hypnagogic amnesia refers to memory gaps around sleep onset but is not central to narcolepsy. Therefore, narcolepsy is most fundamentally associated with REM intrusion into wakefulness.

80. Answer: (A) Herrnstein
Explanation: The matching law was proposed by Richard Herrnstein and describes how organisms allocate responses in proportion to the rate of reinforcement available for each option. In choice behavior, response rates “match” relative reinforcement rates, providing a quantitative framework for operant decision-making. It is central to behavioral analysis of choice. Guthrie emphasized contiguity learning, Estes focused on stimulus sampling theory, and Premack proposed reinforcement through relative response probability.

81. Answer: (B) domain-specific cognition
Explanation: The linguistic relativity hypothesis (Sapir–Whorf) suggests that language influences thought processes, particularly in how individuals perceive and categorize experience. Evidence most strongly supports effects in domain-specific cognition, such as color perception, spatial reasoning, and temporal concepts, where language shapes attention and memory. It does not alter basic sensory mechanisms, neurological development, or reflexive motor patterns, which are biologically constrained.

82. Answer: (C) Zeigarnik effect
Explanation: The Zeigarnik effect refers to the tendency to remember unfinished or interrupted tasks better than completed ones. This occurs because incomplete tasks create cognitive tension or psychological disequilibrium, keeping them more active in memory until closure is achieved. Once completed, this tension is reduced, leading to weaker recall. It differs from the spacing effect (distributed practice), serial-position effect (better recall of early and late items), and recency effect (better recall of most recent items).

83. Answer: (B) self, world, and future
Explanation: Beck’s cognitive triad in depression involves negative views about the self (“I am worthless”), the world (“everything is unfair”), and the future (“things will never improve”). These distorted schemas maintain depressive thinking by biasing interpretation and information processing toward negative content. It differs from general cognitive process models (memory, attention, learning), contextual domains (family, work, society), and broad psychological frameworks (emotion–cognition–behavior).

84. Answer: (A) existential therapy
Explanation: Existential therapy emphasizes authentic human encounter, therapist genuineness, and exploration of meaning, where selective and purposeful therapist self-disclosure may be used to model authenticity and promote self-awareness. It focuses on responsibility, freedom, and meaning-making rather than symptom reduction alone. In contrast, aversion therapy is behaviorally based, psychoanalysis maintains therapist neutrality and anonymity, and behavioral activation focuses on increasing adaptive activities rather than therapist disclosure.

85. Answer: (C) iatrogenic effect
Explanation: Iatrogenic effects refer to unintended harmful outcomes caused by a treatment or intervention itself, including symptom worsening after psychotherapy. This occurs due to inappropriate techniques, misapplication, or adverse psychological reactions. It differs from spontaneous remission (natural recovery without treatment), placebo response (improvement due to expectations), and therapist drift (deviation from treatment protocol).

86. Answer: (B) quasi-experimental design
Explanation: A quasi-experimental design involves studying naturally occurring variables without random assignment or direct manipulation, while still examining their effects on outcomes. It is commonly used in real-world or field settings where true experimental control is not feasible. In contrast, true experiments and randomized controlled trials involve manipulation and random assignment to establish causality. Double-blind design refers to blinding procedures, not design structure.

87. Answer: (B) irrational beliefs
Explanation: In Rational Emotive Behavior Therapy (REBT), emotional distress is primarily caused by irrational beliefs, not events themselves. According to the ABC model, activating events (A) are interpreted through beliefs (B), which lead to emotional and behavioral consequences (C). Dysfunction arises from rigid, absolutist, and illogical beliefs (e.g., “I must be approved by everyone”). This differs from unconscious conflict (psychoanalysis), reinforcement mechanisms (behaviorism), and attachment insecurity (attachment theory).

88. Answer: (B) lexical explosion
Explanation: Rapid vocabulary expansion in early childhood is commonly referred to as the lexical explosion (or vocabulary spurt). This phase typically occurs around 18–24 months and is characterized by a sudden and rapid increase in the number of words a child learns and uses, reflecting accelerated lexical acquisition and improved mapping between words and meanings. Semantic acceleration and phonemic broadening are not standard developmental terms, and syntactic transition refers to changes in sentence structure rather than vocabulary growth. Therefore, the sharp increase in word learning during early childhood is best described as a lexical explosion.

89. Answer: (C) Prefrontal cortex
Explanation: The prefrontal cortex is the brain region most directly involved in conscious regulation of complex goal-directed behavior, including planning, decision-making, working memory, cognitive flexibility, and inhibitory control. It integrates information from multiple brain systems to guide behavior in accordance with internal goals and environmental demands. The limbic system is primarily involved in emotion and motivation, the brainstem regulates basic life functions such as arousal and respiration, and the occipital cortex is specialized for visual processing. Therefore, higher-order executive control of behavior is primarily mediated by the prefrontal cortex.

90. Answer: (B) emotional withdrawal
Explanation: In Erik Erikson’s psychosocial theory, the stage of Intimacy vs. Isolation occurs in early adulthood. Successful resolution leads to forming close, committed relationships. However, failure to achieve intimacy results in social and emotional isolation, where individuals may avoid close bonds and experience loneliness or emotional withdrawal.

91. Answer: (B) attentional vigilance
Explanation: Microsleep episodes during monotonous tasks reflect a breakdown in attentional vigilance, which is the sustained ability to maintain alertness and responsiveness over time. Under low stimulation and fatigue, vigilance declines, leading to brief lapses in awareness (microsleeps). This differs from circadian regulation (biological sleep–wake timing), sensory adaptation (reduced response to constant stimuli), and dream consolidation (REM-related memory processing).
92. Answer: (A) stimulus contingency
Explanation: Rescorla’s contingency theory states that classical conditioning depends on the predictive relationship (contingency) between the conditioned stimulus (CS) and unconditioned stimulus (US), not just their pairing. Learning strength is determined by how reliably the CS predicts the US compared to when the US occurs without the CS. This contrasts with reinforcement immediacy (operant conditioning), response deprivation (Premack principle), and perceptual readiness (biological preparedness).

93. Answer: (A) cognitive therapy
Explanation: Cognitive therapy (Beck) focuses on identifying and modifying automatic thoughts, which are rapid, reflexive cognitions triggered by situations and linked to emotional distress. These thoughts are often distorted and influence maladaptive beliefs and behaviors. Therapy involves recognizing, evaluating, and restructuring these cognitions and the underlying schemas. In contrast, Gestalt therapy emphasizes present-moment awareness, existential therapy focuses on meaning and existence, and narrative therapy works on re-authoring personal life stories.

94. Answer: (C) deferred imitation
Explanation: In Jean Piaget’s theory of cognitive development, conservation (understanding that quantity remains the same despite changes in shape or appearance) depends primarily on the development of reversibility. Reversible operations allow the child to mentally undo or reverse actions (e.g., understanding that a flattened ball of clay can be rolled back into a sphere and thus has the same quantity). This marks the transition to the concrete operational stage, where logical thinking becomes possible.

95. Answer: (B) affect regulation
Explanation: Reduced functional and structural connectivity between the prefrontal cortex and limbic system (especially the amygdala) in schizophrenia disrupts top-down control over emotional processing. This impairs affect regulation, leading to difficulties in modulating emotional responses, inappropriate affect, and poor integration of cognition and emotion. Normally, the prefrontal cortex exerts inhibitory control over limbic emotional reactivity. Motor coordination is cerebellar/basal ganglia based, sensory acuity involves primary sensory cortices, and reflex conditioning involves subcortical/brainstem circuits.

96. Answer: (C) nigrostriatal pathways
Explanation: The symptoms of rigidity, resting tremor, and bradykinesia are classic Parkinsonian features seen as extrapyramidal side effects of antipsychotics. These result from dopamine D2 receptor blockade in the nigrostriatal pathway, which is responsible for motor control. Reduced dopamine in this pathway produces Parkinson-like motor symptoms. In contrast, mesolimbic blockade affects positive symptoms of schizophrenia, tuberoinfundibular blockade leads to hyperprolactinemia, and mesocortical pathways are linked to negative and cognitive symptoms.

97. Answer: (B) Schachter and Singer
Explanation: The two-factor theory of emotion was proposed by Schachter and Singer, who suggested that emotional experience is determined by the interaction of physiological arousal and cognitive labeling of that arousal. According to this theory, arousal is initially undifferentiated, and individuals interpret their physiological state based on contextual cues to identify the specific emotion. Cannon–Bard theory emphasizes simultaneous arousal and emotion, James–Lange theory proposes that emotion follows physiological arousal, and Lazarus emphasizes cognitive appraisal preceding emotion. Therefore, emotion arises from both arousal and cognitive interpretation in the two-factor model.

98. Answer: (A) perceptual adaptation
Explanation: Perceptual adaptation is the ability of the perceptual system to adjust to altered or distorted sensory environments over time, leading to recalibration of perception–action coordination. A classic example is prism adaptation, where individuals initially experience visual distortion but gradually adapt to it. This reflects flexibility in sensory processing under changed environmental conditions. It differs from perceptual defense (avoidance of threatening stimuli), perceptual rivalry (alternating perception of ambiguous stimuli), and perceptual narrowing (reduced sensitivity to non-native stimuli over development).

99. Answer: (B) elementalism
Explanation: The phi phenomenon (Wertheimer) demonstrates apparent motion between sequential static stimuli, even though no actual movement occurs. This finding directly challenges elementalism, which holds that perception is constructed from discrete sensory elements. Instead, it supports Gestalt psychology, which argues that perception is holistic and cannot be reduced to individual sensory components. Behaviorism focuses on observable behavior, functionalism on adaptive mental processes, and structural realism is not central to this debate.

100. Answer: (B) Stanley Milgram
Explanation: Stanley Milgram conducted the famous obedience experiments demonstrating that individuals may administer what they believe are dangerous electric shocks to another person when instructed by an authority figure. The study highlighted the powerful influence of authority on obedience, even when actions conflict with personal conscience. Participants continued shocking due to perceived legitimacy of authority and situational pressure. Asch studied conformity in perceptual judgments, Zimbardo investigated roles in the Stanford Prison Experiment, and Sherif examined social norms through the autokinetic effect. Therefore, obedience to authority in this context is attributed to Milgram’s experiments.