Individual Differences (IDs)
Individual differences (IDs) are essentially how people differ from one another and how they differ from themselves over time. ID research is a subfield of personality psychology research and its focus is on several avenues of research. Emphasis is placed on categorizing the ways people differ from one another, using situational differences to predict IDs in other scenarios, and developing explanations for IDs. IDs can be quantified in many ways such as through ability and cognitive testing.