A branch of psychology that studies children in an educational setting and is concerned with teaching and learning methods, cognitive development, and aptitude assessment.

Developmental psychology is a scientific approach which aims to explain growth, change and consistency through the lifespan.

The psychology of self is the study of either the  cognitive, conative, or affective representation of one's identity or the subject of experience.

Personality refers to individual differences in characteristic patterns of thinking, feeling and behaving. The study of personality focuses on two broad areas: One is understanding individual differences in particular personality characteristics, such as sociability or irritability. The other is understanding how the various parts of a person come together as a whole.

Evolutionary psychology is a theoretical approach in the social and natural sciences that examines psychological structure from a modern evolutionary perspective.