The MCAT Psychological, Social, and Biological Foundations of Behavior section — the "P/S" section — tests psychology and sociology. It is considered one of the more scoreable sections because it rewards terminology and concepts. This guide covers what it tests and how to study it.
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check_circleThe P/S section tests psychology, sociology, and some biology of behavior.
check_circleIt is heavily terminology- and concept-based, making it scoreable.
check_circleHigh-yield areas include learning, cognition, and social behavior.
check_circleThe Khan Academy P/S content is a widely used free resource.
check_circleFlashcards plus practice passages are an efficient study approach.
What the P/S Section Tests
The Psychological, Social, and Biological Foundations of Behavior section integrates introductory psychology and sociology with some biology, all in the MCAT's passage-and-data format. It emphasizes understanding and applying a large body of terminology and concepts to scenarios and research, rather than heavy calculation. Because so much of it rests on recognizing defined terms, it is often considered one of the more improvable sections.
High-Yield Topics
Prioritize core psychology topics — sensation and perception, learning and memory, cognition, motivation and emotion, and psychological disorders — and core sociology topics — social structures and institutions, social inequality, demographics, and theories of social behavior. The biological basis of behavior (the nervous system, neurotransmitters, and the endocrine influence on behavior) also appears and overlaps with the biology sections.
Why It Is Scoreable
The P/S section rewards knowing a defined vocabulary and applying it, which is more tractable than the open-ended reasoning of some sections. Students who systematically learn the terminology and practice recognizing it in passages often see substantial score gains. This makes efficient, high-yield review of the terms one of the best returns on study time in the whole exam.
How to Study P/S
A common, effective approach is to learn the terminology with spaced-repetition flashcards — the widely used community documents distilled from Khan Academy's P/S content (the "86-page" and "300-page" documents) are popular free resources — and then reinforce with AAMC and third-party practice passages to train application and data interpretation. Consistent review of the vocabulary, paired with passage practice, is the efficient path to a strong P/S score.
Straight from the Progress Note question bank, each with a cited explanation. No account needed.
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In psychology and sociology, a 'stereotype' is best defined as...
Answer: D. A stereotype is a widely held but oversimplified and generalized belief or image about the members of a particular group, applied to individuals regardless of their actual characteristics. A specific fear (A) is a phobia, an evidence-based conclusion about one person (B) is not a stereotype (which generalizes over an entire group), memory loss after a shock (C) is a form of amnesia, and a reflex to a loud noise (E) is a startle response. An oversimplified belief about an entire group is a stereotype.
A research team analyzing meta‑analyses from psychology observes systematic overestimation of treatment efficacy in smaller studies. Which statistical phenomenon best explains this pattern?
Answer: A. Smaller studies are more prone to selective publication of positive results, producing funnel-plot asymmetry and systematic overestimation of effect size. Larger trials give more stable estimates rather than underestimates, effect size is not independent of sample size here, and transparency reduces but does not remove the bias.
Source: Van Aert, Wicherts & Van Assen (2019)
The "Big Five" model is a widely used framework in personality psychology. Which of the following is one of its five trait dimensions?
Answer: D. The Big Five (often remembered by the acronym OCEAN) comprises openness, conscientiousness, extraversion, agreeableness, and neuroticism; conscientiousness is one of these dimensions. Id strength (A) is a psychoanalytic concept, sensorimotor intelligence (B) is a Piagetian developmental stage, self-actualization (C) is from Maslow's humanistic theory, and secure attachment (E) is an attachment-style category — none of which is a Big Five trait.
What does the MCAT psychology and sociology section test?expand_more
The Psychological, Social, and Biological Foundations of Behavior ("P/S") section tests introductory psychology and sociology, plus some biology of behavior, in the MCAT's passage-and-data format. It emphasizes applying a large body of terminology and concepts rather than calculation.
Why is the P/S section considered scoreable?expand_more
The P/S section rests heavily on knowing and applying a defined vocabulary, which is more tractable than open-ended reasoning. Students who systematically learn the terminology and practice recognizing it in passages often see large score gains, making it a high-return section to study.
What are the high-yield P/S topics?expand_more
High-yield psychology topics include sensation and perception, learning and memory, cognition, motivation and emotion, and psychological disorders; high-yield sociology topics include social structures and institutions, social inequality, and demographics. The biological basis of behavior also appears.
How should I study for MCAT psychology and sociology?expand_more
Learn the terminology with spaced-repetition flashcards — the community documents distilled from Khan Academy P/S content are popular free resources — and reinforce with AAMC and third-party practice passages to train application. Consistent vocabulary review plus passage practice is the efficient approach.
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