A cross-sectional, stratified random sample of 1,891 male and female adolescents (age range from 12 years 6 months to 17 years 6 months) was tested in 1970 with the Grades 9-12 form of the Primary Mental Abilities test. (Editor)

Videotapes of two 17-month old children -- each child sometimes described as a boy and sometimes as a girl -- were shown to 85 adult middle-class subjects, who rated attributes of the children on questionnaires containing sex role items. (Authors/RY)

Females cheated in response to consistently unfavorable self-perceptions, while males were influenced by immediate situational factors. (Authors)

Results confirmed previous findings that response speeds would be faster following an 18- than a 8-second stimulus duration. (Author)

Nine-, eleven-, and thirteen-year-old children participated in a conformity situation requiring the judgment of the louder of two successively presented tones. (Editor)

Results indicate that identity conservation generally does not precede equivalence conservation; instead the two conservations tend to co-occur. (Authors)

The expectation that an effective conservation training procedure would be one in which the child was confronted with opposing points of view was investigated in an experiment and a replication experiment in which the child's point of view was brought into conflict with those of other children. (Author/RY)

The purpose of the study was to determine (a) whether there are differences in the way in which Negro and white experimenters interact with Negro and white subjects; and (b) whether such differences influence performance on tests of motor impulse control, reflectivity, innovative behavior, and curiosity. (Authors)

Study was aimed at determining whether positive adjectives and negative adjectives possess the oppositeness" (mutual exclusiveness) necessary for their conceptualization as defining the extremes of a single dimension of meaning. (Authors)

Results are discussed in terms of the interactive effects of sensory systems. (Author)

Implications of the findings for the programming of institutions for the retarded are discussed. (Authors)

The present study investigated some properties of the environment that control an infant's response to his mother's departure and, in particular, the readiness with which he follows her. (Authors)

Boys IQ was positively correlated with paternal nurturance, and negatively correlated with paternal restrictiveness. (Author)

It was shown that hierarchies change with development and that relative salience of a dimension is negatively associated with both reaction time of choice and number of errors on the identity task. (Authors)