This article is a critique of a study which concluded that there is a relationship between the use of obstetrical drugs and the behavior of infants during the first month of life. (BRT)

This article is a reply to a critique of the authors' study which concluded that there is a relationship between the use of obstetrical drugs and the behavior of infants during the first month of life. (BRT)

Purpose of this study was to examine the nature of correlations among tasks purporting to measure communicative, cognitive, role-taking, and spatial egocentrism in childhood. (Author/CB)

Conducted meta-analysis of preschool and early elementary school self-esteem instruments, using reliability as criterion variable and different aspects of methodology used in testing an instrument as predictor variables. Found that reliability could be predicted by study setting, number of items in the scale, age of children being studied, method…

Specific aim of the study was to determine the predictive accuracy of selected observations obtained during developmental periods on later developmental outcome. (Authors)

Purpose of the study is to examine relationships between internality and achievement-related variables in a performance situation where students determine the difficulty level at which they desire to work. (Authors)

A total of 193 basically healthy working-class and middle-class mothers and their infants participated in a four-year longitudinal study. The study focused on the relative potency of several clusters of variables for predicting intellectual and language outcomes during the preschool years. (Author/RH)