Developmental Science

Developmental science seeks to describe, explain, and optimize intraindividual (within-person) change and interindividual (between-person) differences in intraindividual change across the life span. At this writing, contemporary developmental science theory is characterized by models derived from the relational developmental systems (RDSs) metamodel. Methodologically, the field involves quantitative, qualitative, and mixed-methods research as integral to understanding the meaning and course of human development. In turn, developmental science is itself developing. New areas of scholarship are being drawn from other disciplines, such as biology and economics. For instance, the new understanding of the role of biology in human development is predicated on an integration of evolutionary theory and of epigenetics. Epigenetics constitutes variations in the expression of either phenotypes or genes that occur through processes other than variations ...

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