Psychologistsmayinducestress,anxiety,ornegativemoodsintheir participants, expose them to weak electrical shocks, or convince them to behave in ways that violate their moral standards. Additionally researchers may sometimes use animals, potentially harming them in the process.

The field informs several applied fields in psychology, including, educational psychology, psychopathology, and forensic developmental psychology. It also complements several other basic research fields in psychology including social psychology, cognitive psychology, and comparative psychology. Lastly, it draws from the theories and research of several scientific fields including biology, sociology, health care, nutrition, and anthropology.

1.2: Lifespan PerspectiveDevelopmental Psychology, also known as Human Development or Lifespan Development, is the scientific study of ways in which people change, as well as stay the same, from conception to death.