Developmental psychology deals with how the individual, as a result of complex interactions between biological and environmental conditions, over time is able to understand and manage the world in new ways.
Developmental psychology includes a wide spectrum of topics within cognitive, emotional and social development. It includes the study of language and morality. What factors can lead to uneven development, and what factors promote positive growth?
The variation in themes involves a wide range of methodological approaches, from painstaking observational and experimental studies to interviews and questionnaires. The research involves children and adolescents from diverse social and ethnic backgrounds, normally developed individuals with disabilities or uneven development, as well as individuals who do well despite difficult conditions.