Research
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AP Research — Cheatsheet

Formulas, exam-day tips, and key terms on one page.

How to get a 5

Key terms

Research QuestionA clear, focused, concise, complex, and arguable question around which research is centered.
Gap in the LiteratureA missing piece of information in the existing body of research that your study aims to fill.
Quantitative ResearchResearch that deals with numbers, statistics, and objective measurements.
Qualitative ResearchResearch that deals with words, meanings, and subjective experiences (e.g., interviews, observations).
Mixed MethodsA research approach that combines both quantitative and qualitative methods.
MethodologyThe overarching rationale and theoretical framework for your research approach.
MethodThe specific tools or procedures used to collect and analyze data (e.g., survey, experiment).
Literature ReviewA comprehensive summary and synthesis of previous research on a topic.
IRB (Institutional Review Board)A committee that reviews research proposals to ensure ethical treatment of human subjects.
Informed ConsentEnsuring participants fully understand the risks, benefits, and procedures of a study before agreeing to participate.
ValidityThe extent to which a test or instrument measures what it is supposed to measure.
ReliabilityThe consistency or repeatability of a measure or study.