WISC-R was administered to 76 subjects from rural school districts referred to a consulting school psychologist for learning problems. Each subject's results on old and new color formats of Coding B subtest were compared. Results suggest possibility of a color enhancement effect, at least with students having learning problems. (Author)

This report is a review of reliability data on the PPVT obtained from 32 research studies published between 1965 and 1974. For average children in the elementary grades, and for retarded people of all ages, PPVT scores remained relatively stable over time and there was close equivalence between alternate forms. (Author)

A pair of severely speech delayed twin girls were separated and placed into parallel school classes where they were given language training with the aim of remediating the effects of their early deprivation. The acceleration in their linguistic ability was paralleled by a marked increase in intellectual functioning as measured by standardized…

Discusses the questions of what limits should be placed on the application of computers to human affairs and on knowing the impact of computers on human dignity. (BB)

The simultaneous and successive processing model of cognitive abilities was compared to a traditional primary mental abilities model. Simultaneous processing was found to be primarily related to spatial ability; and to a lesser extent, to memory and inductive reasoning. Subjects were 104 fourth-grade urban males. (Author/GD C)

Research on laterality and intellectual abilities suggests that left-handed persons may be divided into two categories: one not discriminably different from those who are right-handed, and one deficient in intellectual and cognitive abilities. 7688 children were tested on handedness, intellectual performance, and scholastic aptitude in order to…

The Wechsler Intelligence Scale for Children-Revised, the Slosson Intelligence Test, and the National Education Development Test were administered to a small sample of private school children ranging in age from 12.3 to 14.1 years. Correlations among these measures were moderate to high. (JKS)

The concept of selection ratios was illustrated for large clinical settings. Four Draw-A-Person (DAP) variables were used to predict intelligence in a sample of 601 institutionalized addicts. Results indicate that a test with low predictability across the entire distribution can often be used quite effectively for identifying poor or excellent…

After seven years, a group (N=32) of originally nonemployed poverty-level older people (over 60) now employed as foster grandparents were retested with the WAIS. Three subtest scores showed stability and Digit Span showed a statistically significant drop. Neither age nor initial level of health or WAIS scores was related to test-score changes over…

Available from: Arthur Retlaw and Associates, Inc., Suite 2080, 1603 Orrington Avenue, Evanston, Illinois 60201. A sample of 4-year-old children (n=111) with PKU (phenylketonuria) who were placed on dietary therapy between 3 and 92 days of age were assigned to two treatment groups based on "moderate" and "low" serum…

Two experiments were concerned with exploring the relative accessibility and availability of category information in retarded adolescents in comparison with CA equivalent nonretarded subjects. (Author/SB)

The current state of experimental research on mental retardation is considered from a historical perspective. (Author)