It was concluded that while retinoblastoma per se is not associated with intellectual superiority or inferiority, retinoblastoma associated with blindness may result in selective cognitive superiority. (Authors)

In the investigation described here, the relationship between individual differences of intelligence, as measured by the Wechsler Adult Intelligence Scale (WAIS; Wechsler, 1958), and inspection time has been examined. (Author)

Initial standing in language, reading, intelligence, socioeconomic status, and sex differences did not predict writing ability of third grade children any more accurately for structured than for nonstructured teaching methods, although children who did not spell or read as well as others were able to produce more volume in their writing when…

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

Investigation combined two heretofore unconnected research areas: the newly structured operation of divergent thinking and the older domain of family resemblances. (Author)

Detailed analysis of the reactions to training and of the verbal regulation of behavior scores of subjects from a remote Indian reserve showed that the low IQ of this group resulted from an underdevelopment of reflective verbal thought, but not from a biologically determined inadequacy. (Authors)

Research indicates that less streaming of the grammar school ability band leads to social and academic gain for more pupils but with some loss in performance by the brightest boys. Perhaps too wide an ability range in the class would increase this loss intolerably. (Author)

Around one-third of pupils in British schools take no part in extra-curricular activities. This article looks at the adequacy of extra-curricular provision from the pupil's viewpoint. (Author/MB)

This pretest report on the National Head Start Evaluation Project gives data on ethnicity and ages of children enrolled in four Head Start centers in Oklahoma, New Mexico, and Arizona, and describes the present status of evaluation at these centers. Completed pretests, proposed evaluation instruments, and available pretest data are presented.…

This report summarizes the results of the administration of the vocabulary and Block Design subtests of the WISC to a national probability sample of noninstitutionalized youths 12 through 17 years of age. Information is presented on the derivation of percentile equivalents, normalized scale scores, and a short-form estimate of Face Scale Scores.…

Early readers came from higher socio-economic levels and smaller families, their mothers had more education, they spent more time in sedentary activities, and they received a variety of kinds of help. (Authors)

The mental growth patterns of 204 children were investigated on four different test occasions covering a five-year period, ages six to 11. There is no evidence of intellectual differentiation after age six nor is there a systematic decline in size of WISC subtest intercorrelations with increasing age. (Authors)

By nonintellective" are meant factors which are present in a test situation and which influence the test scores obtained but are not obviously related to the skills or knowledge ostensibly being measured by the test. (Authors)

When differences in level of motivation were controlled, all of the previously found differences between firstborn and later born disappeared. (Authors)

Distinctions between psychological versus task helping and attempted versus achieved help were applied to the helping behaviors of normal and retarded children of 2 age groups observed in natural settings. (Authors)