Prosocial behavior is an important aspect of normal social and psychological development. Adult and child twin studies typically estimate the heritability of prosocial behavior to be between 30 and 50%, although relatively little is known about genetic and environmental influences upon prosocial behavior in adolescence. We therefore examined…

Shorter version of this paper read at theannual meetings of the American Psychological Association, September 1965. Research supported by NIMH grant MH-16841.

Key components of human behavioral genetics and Sandra Scarr's work of the past two decades are critically reviewed based on scholarship in animal neuropsychology and clinical and educational psychology. Scarr's opinion that interventions to enhance intellectual development are ineffectual for children from abuse- and neglect-free backgrounds is…

Noting that beyond the individual variations among humans, there is a body of mental abilities common to every human being, this book examines the debate among researchers about the extent to which humans are "preprogrammed," and suggests a new scientific psychology of human development. By examining experimental data obtained from…

This final report reviews the second phase of a life-span study of boys with fragile X syndrome (FSX), the most common known inherited cause of mental retardation. Males with the syndrome are more severely affected than females and in males, delays are usually evident in all the developmental domains, although cognitive and communication skills…

This curriculum guide on child development consists of six units for grades 9-12. A book list is provided. Each unit has 1-15 lessons. Unit 1, Overview of Child Development, teaches the value of studying children. Unit 2, Responsibilities Related to the Child, has four lessons: Parenting Responsibilities, Nurturing/Bonding, Self Concept, and…