AP Psychology Study Guide

The redesigned course is organized into five broad units. Biological bases of behavior covers the nervous system, the brain, neurotransmitters, sensation, consciousness, and the interplay of nature and nurture. Cognition spans memory, thinking, problem-solving, intelligence, and how psychologists measure mental processes.

Development and learning combines lifespan development with the major learning theories — classical conditioning, operant conditioning, and observational learning. Social psychology and personality examines how others shape our behavior, the major theories of personality, and motivation and emotion. Mental and physical health covers stress, psychological disorders, and approaches to treatment. Cutting across all five units is a strong emphasis on research methods and data interpretation — experimental design, variables, correlation versus causation, and reading the results of a study — which the redesign made central rather than a standalone topic.

The redesigned exam spreads its weight more evenly than the old version did. The College Board publishes approximate ranges, and the five units land in broadly comparable bands — each roughly a fifth of the multiple-choice section, give or take:

• Biological Bases of Behavior — a major share, with sensation, the brain, and consciousness.
• Cognition — a major share, anchored by memory and thinking.
• Development and Learning — a major share, combining lifespan and learning theory.
• Social Psychology and Personality — a major share, including motivation and personality theory.
• Mental and Physical Health — a major share, covering disorders and treatment.

Because no single unit dominates, broad and even coverage beats over-investing in one area. The highest-leverage move is mastering research methods, since data-based questions appear across every unit and in the free-response section.

Psychology has a lot of vocabulary, but the exam tests application, so study for transfer:

1. Turn terms into scenarios. For each concept, write or find a short real-world example. The multiple-choice section overwhelmingly asks you to recognize a concept in a situation, not define it.
2. Master research methods early. Know independent versus dependent variables, control groups, random assignment, and why correlation isn't causation. These show up everywhere, including the free-response prompts.
3. Use the unit structure to space your review. Cycle through all five units repeatedly rather than cramming one at a time — spacing is, fittingly, one of the memory principles the course teaches.
4. Practice the free-response question types. The exam includes an article-analysis task built on a research study and an evidence-based argument; both reward clear reasoning from evidence over piling up terms.

• Confusing correlation with causation — the single most common trap, and one the exam sets deliberately.
• Mixing up classical and operant conditioning, especially reinforcement versus punishment and positive versus negative.
• Memorizing definitions you can't apply. Knowing the word "availability heuristic" doesn't help if you can't spot it in a scenario.
• Confusing similar disorders or theories, such as the different personality perspectives or the categories of psychological disorders.
• Writing free-response answers that list terms instead of using each term correctly inside a sentence that answers the prompt — the rubric credits accurate application, not name-dropping.

Every unit below has a focused practice set with full written explanations and a rationale for every wrong choice, plus a worked-solutions page you can read straight through. Because the exam weights the five units fairly evenly, rotate through all of them — and lean on the research-methods questions, since that skill pays off in every unit. Take a mixed set across the whole subject to pressure-test your application skills before exam day. It's free and needs no account.