This monograph is concerned with the mid adolescent follow-up of a group of adoptees from Romania and from within the United Kingdom who were first assessed at the age of 4 years (or 6 years in the case of the oldest children). Chapter I provides the background as it applied at the time that the study began, and then goes on to outline the overall…

A series of five experiments are reported which support the proposition that observers between three years of age and adulthood interpret physical causation primarily in terms of the concept of generative transmission rather than in terms of other well-known rules such as covariation, similarity, and temporal and spatial contiguity. (Author/MP)

Presents a theory of cognitive development that postulates a general cognitive processing system, a hypercognitive system governing self-regulation, and specialized structural systems responsible for processing different reality domains. Suggests five principles that serve as organizational pivots of developing cognition. Reports the results of…

Describes a cross-cultural comparative study of recall memory among children from two Guatemalan towns and one American city. (CM)

Compared the performance of two groups of subjects on psychoeducational tests taken during adolescence and early adulthood. Adolescents who had received a protein supplement when they were infants scored higher on tests of knowledge, numeracy, reading, and vocabulary and showed faster reaction times in information-processing tasks than adolescents…