Using data from a broader longitudinal study, this investigation explores within-subject and cross-generational stability of intellectual competence and the relationship of such stability to aggressive behavior. Data were gathered three times (when subjects' modal age was 8, 19, and 30 years). Initially, subjects included the entire population…

Estimates confluence model of intellectual development for a within-family sample of 321 children from 101 transracial adoptive families. Mental ages of children and their parents and birth or adoption intervals were used in a nonlinear least-squares estimation procedure to obtain children's predicted mental ages. Results suggest efficiency of the…

Discusses the controversy of the relationship between birth order and intellectual performance through a detailed evaluation of the confluence model which assumes that the rate of intellectual growth is a function of the intellectual environment within the family and associated with the special circumstances of last children. (CM)

Several themes relevant to the personality development and intellectual functioning of children are presented in this position paper. Inferences for the education of Nigerian children are also drawn. Among general factors considered influential in children's intellectual development, three are emphasized: the way in which intelligence is defined,…

A review of literature pertaining to the effects of parental absence on children suggests that various types of absenteeism affect children differently. One-parent homes are examined with reference to effects on sex-role development, academic achievement, intellectual development and delinquency in children. (MS)