Behavioral Science

Behavioral science is the study of what people do and why they do it. It covers how we learn, make decisions, form relationships, and respond to the world around us.

This glossary brings together the main ideas from psychology and related fields. You'll find entries on personality, motivation, memory, social influence, and the ways behavior changes over a lifetime. It also covers the tools researchers use to study these things, including experiments, measurement, and causal inference. Those tools help us work out whether an explanation holds up when we test it.