AP PSYCHOLOGY

Detailed explanation-1: -Collective case studies: These involve studying a group of individuals. Researchers might study a group of people in a certain setting or look at an entire community.

Detailed explanation-2: -Case studies are widely used in psychology to provide insight into unusual conditions. A case study, also known as a case report, is an in depth or intensive study of a single individual or specific group, while a case series is a grouping of similar case studies / case reports together.

Detailed explanation-3: -Case studies are in-depth investigations of a single person, group, event or community. Typically, data are gathered from a variety of sources and by using several different methods (e.g. observations & interviews).

Detailed explanation-4: -He has helpfully characterised three main types of case study: intrinsic, instrumental and collective[8]. An intrinsic case study is typically undertaken to learn about a unique phenomenon.