The joint trajectory analysis version of Nagin's ("Group-based modeling of development." Cambridge, MA: Harvard University Press, 2005) semiparametric, group-based approach for modeling trajectories was used to assess how boy's trajectories of conduct problems (CP) and neighborhood SES covaried from ages 5 to 12. Participants were…

An intervention study with mothers and infants is discussed. The project staff consisted of two home visitors, a materials specialist, an infant examiner, and a project coordinator. This study assessed the effectiveness of the program for mothers and infants. Infant abilities and psychological development were tested and homes were rated. One home…

This document presents some of the major challenges facing Developmental Psychologists. Research revealed that middle class children tended to respond in classification tasks to objects and pictures as equivalents, whereas low class black children tended not to do so. The reason for this was investigated. This investigation of the course of…