Mental-rotation task response times from 12 studies involving 505 adults--251 males and 254 females--were used to evaluate 5 hypotheses concerning sex differences derived from an X-linked genetic model. The model assumes that task facilitation in speed of mental rotation is mediated by a recessive gene. Four hypotheses derived from the model were…

Findings of the present inquiry indicate the relevance of cognitive considerations in studies of time perception. (Authors)

Traces the developmental history of information processing in elementary school children as measured by a numerals-keys choice response paradigm. Also attempts to correct some of the more obvious methodological problems observed in previous students of this type. (Author/MP)

This study used the "double easy-to-hard" paradigm to examine the hypothesis that the class inclusion (CI) task should be equivalent in relational complexity to the transitive inference (TI) problem. Participating in the study were 64 girls and 50 boys, with a mean age of 8 years, 6 months. Stimuli for easy versions of the tasks were…

Examines how male/female differences in time perception, power, thought, relationships, responsibility, process vs. product, conservation and exploitation, and leadership contribute to positive growth in outdoor learning. Suggests concepts of feminism, androgyny, and personality theory have implications for understanding camping experiences for…

A study of simple reaction time (SRT) and choice reaction time (CRT) in 71 Chicano adolescents suggests that Hick's model is appropriate for studying cognitive information processing in Chicanos. No age or sex differences were found for SRT or CRT, although there were some differences in SRT by family income level. (KS)

Total reaction time for dyslexic children was found to be longer than for normal children, suggesting that a modification of the study task might be useful for the early prediction of reading disability. (GS)

Gender schema theory proposes that sex typing derives from gender-based schematic processing, particularly from the self-concept itself being assimilated to the gender schema. In two studies sex-typed individuals were found to have a greater readiness to process information (including information about the self) in terms of the gender schema.…

This study explored sex differences in the Future Temporal Perspectives (FTP) of children. The influences of age, social class and intelligence were also investigated, or FTP was generally believed to be affected by them. Subjects were 96 boys and 96 girls, selected from 26 schools in Nova Scotia, from three age groups: 9.6-11.0, 12.0-13.6, and…

Two techniques were used to modify an impulsive conceptual tempo on a visual discrimination task. The subjects were 42 first grade white children who had previously been classified as impulsive or near-impulsive on the Matching Familiar Figures Test given to 82 children. These subjects, who had scored above the median on errors and below the…

In a study on cognitive style, reflectivity-impulsivity in response to task uncertainty was investigaged. At 44 months of age, 23 boys and 25 girls were tested on a matching-figures test. Correlations were made between number of errors, response time, intelligence, and sex. Results indicated that there were significant sex differences in preschool…