Compared was the performance of nine educable mentally retarded (EMR) children (mean age 9 years) with the performance of 50 normal kindergarten children on a test of visual perception at the abstract level. The test of 17 items involved the dimensions of size, shape, and color at four steps of skill attainment (recognition, discrimination,…

Test Battery was designed to explore the auditory and the visual perceptual processing abilities of children from five through eight. (Authors)

Adults' ability to track a moving target was examined in two experiments in order to compare their performance with that of very young infants. Results indicated that (1) adults'"overshoot" errors resembled those reported for young infants; and (2) adults had problems tracking a moving target which unexpectedly changed direction. (Author/DB)

Witkin's Embedded Figures Test (EFT) was used to measure the changes with age in field dependence and problem-solving ability. Qualitative data concerning problem-solving strategies and quantitative data were collected. EFT was administered to 12 females in each of the following decades: 20s, 30s, 40s, 50s, 60s, 70s. All subjects were moderately…

This study assessed the usefulness of the dynamic testing approach to optimize testing procedures by reducing or eliminating bias, conceived of as error in measurement attributable to factors entering into performance which were not the target of the assessment. The study examined: (1) whether the dynamic assessment approach yields information…