AP Psychology · Unit 3

Sensation & Perception

How we take in and make sense of the world — from photons to meaning.

AP Psychology · Unit 3
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§ 1Big Picture

§ 2Vocabulary

Tap a card to flip. Use Mark Known to track your progress — it's saved in your browser. Search to filter.

§ 3Key Identifications

Each card opens to show What / Who / When / Why it matters for the AP exam. Click a card to expand.

§ 4Timeline of Key Discoveries

Gold dots = landmark findings that reshaped the field. Know the researcher and the core finding.

§ 5Learning Objectives

Click a question to reveal a model answer. These align with the College Board's course framework — if you can answer each cold, you own Unit 3.

§ 6Multiple-Choice Practice

AP Psych MCQs test your ability to apply concepts to novel scenarios. Read each stem carefully before choosing. Explanations appear after you answer.

§ 7Free-Response Practice

Rule of thumb: every FRQ part needs a definition + application. Define the term, then apply it to the specific scenario. Write your response first, then reveal the model.

§ 8Research Scenarios

Work through each scenario using the experimental-design lens: IV, DV, operational definitions, controls, ethical considerations. These mirror the research-design FRQ on the AP exam.

§ 9Essay Practice

The AP Psych FRQ rubric rewards: accurate definitions, clear application to the prompt, and specific examples that demonstrate understanding of the concept.

§ 10Key Studies & Findings

The landmark experiments and observations most likely to appear on the AP exam. Know the researcher, the method, and the finding.

§ 11Common Pitfalls

The specific mistakes students make over and over on Unit 3 questions.

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