Psychology 2022 Paper I 50 marks Explain

Q2

(a) State the assumptions and merits of two-way ANOVA. Explain the applications of the same in psychological research with an appropriate example. (20 marks) (b) Discuss language acquisition at different stages of development in the light of the theories of Skinner and Chomsky. (15 marks) (c) What do you understand by physical indicators of emotion? How are they relevant in polygraph test? (15 marks)

हिंदी में प्रश्न पढ़ें

(a) दो-तरफा अनोवा की धारणाओं और विशेषताओं को बताइए। मनोवैज्ञानिक अनुसंधान में इसके अनुप्रयोगों की व्याख्या एक उपयुक्त उदाहरण के साथ कीजिए। (20 अंक) (b) स्किनर और चॉम्स्की के सिद्धांतों के आलोक में विकास के विभिन्न चरणों में भाषा अधिग्रहण पर चर्चा कीजिए। (15 अंक) (c) संवेग के शारीरिक संकेतकों से आप क्या समझते हैं? ये पॉलीग्राफ टेस्ट में कैसे प्रासंगिक हैं? (15 अंक)

Evaluate your answer to this question → See all 2022 Psychology questions

Directive word: Explain

This question asks you to explain. The directive word signals the depth of analysis expected, the structure of your answer, and the weight of evidence you must bring.

See our UPSC directive words guide for a full breakdown of how to respond to each command word.

How this answer will be evaluated

Approach

The directive 'explain' demands clear exposition with reasoning and illustration. Allocate approximately 40% of word budget to part (a) given its 20 marks, and roughly 30% each to parts (b) and (c). Structure: brief introduction → systematic treatment of each sub-part with sub-headings → integrated conclusion highlighting methodological and theoretical convergences across research methods, language development, and emotion assessment.

Key points expected

  • Part (a): Assumptions of two-way ANOVA (normality, homogeneity of variance, independence of observations) and its merits (efficiency, interaction effects, control of Type I error)
  • Part (a): Application in psychological research with specific example (e.g., factorial design studying gender × treatment effects on memory performance)
  • Part (b): Skinner's operant conditioning (reinforcement, imitation, shaping) applied to language acquisition stages (babbling, holophrastic, telegraphic)
  • Part (b): Chomsky's nativism (LAD, universal grammar, poverty of stimulus) and critical period hypothesis contrasting with Skinner across developmental stages
  • Part (c): Physical indicators of emotion (ANS activation: GSR/EDA, heart rate, blood pressure, respiration, pupillary dilation)
  • Part (c): Relevance to polygraph test (CQT, GKT methods), limitations (false positives, countermeasures, admissibility issues in Indian courts)

Evaluation rubric

DimensionWeightMax marksExcellentAveragePoor
Concept correctness20%10Accurately defines two-way ANOVA components (main effects, interaction, F-ratios); correctly distinguishes Skinner's environmental reinforcement from Chomsky's innate structures; precisely identifies ANS-based physiological markers and their polygraph measurementBasic definitions present but conflates one-way and two-way ANOVA, oversimplifies the Skinner-Chomsky debate as nature vs nurture without stage-specific analysis, lists physiological indicators without explaining measurement mechanismsFundamental errors such as confusing ANOVA with t-test, misattributing theories (e.g., calling Skinner nativist), or describing polygraph as direct lie detection rather than arousal measurement
Theory & studies cited20%10Cites Fisher's development of ANOVA; references Skinner's Verbal Behavior (1957) and Chomsky's review (1959), LAD, universal grammar; mentions Larson's polygraph techniques, Indian Supreme Court rulings on polygraph admissibility (Selvi v. State of Karnataka, 2010)Mentions theorists by name without specific works or dates; generic reference to 'studies show' without attribution; no Indian legal context for polygraphNo citations or misattributed theories (e.g., attributing LAD to Skinner); confuses polygraph with brain-based methods like fMRI or narcoanalysis
Application examples20%10Provides detailed factorial design example for (a) with IVs, DV, and hypothetical results; illustrates language stages with concrete utterances for (b); explains polygraph procedure with CQT/GKT distinction and Indian forensic context for (c)Vague examples (e.g., 'used in experiments') without specifics; generic language examples without developmental progression; mentions polygraph use without procedural detailNo examples provided, or irrelevant examples (e.g., one-way ANOVA for part a); confuses application domains across sub-parts
Multi-perspective analysis20%10For (a), compares two-way ANOVA with repeated measures and MANOVA; for (b), synthesizes interactionist perspectives bridging Skinner-Chomsky (e.g., social interactionist theory, Tomasello); for (c), evaluates polygraph against alternative methods (brain fingerprinting, voice stress analysis) with ethical-legal critiquePresents Skinner and Chomsky as opposing without synthesis; mentions limitations of ANOVA or polygraph without comparative alternatives; no integration across sub-partsSingle perspective only; accepts one theory as correct without critique; no evaluation of methodological limitations or ethical concerns
Conclusion & evaluation20%10Synthesizes across sub-parts: connects statistical rigor (ANOVA) with theoretical debates in language research and measurement challenges in emotion; reflects on scientific psychology's methodological diversity; notes contemporary relevance (big data ANOVA applications, AI in language acquisition, polygraph reforms)Summarizes each part separately without cross-connection; generic concluding statement about psychology's importance; no forward-looking elementMissing conclusion, or abrupt ending; introduces new information in conclusion; contradictory summary of main arguments

Practice this exact question

Write your answer, then get a detailed evaluation from our AI trained on UPSC's answer-writing standards. Free first evaluation — no signup needed to start.

Evaluate my answer →

More from Psychology 2022 Paper I