Timed and untimed scoring methods were employed with five WAIS subtests administered to 40 young and 40 old subjects matched for verbal intelligence. Elimination of bonuses for rapid performance differentially improved the scores of older subjects but did not raise those scores to levels achieved by the young. (Author)

IN ORDER TO DETERMINE THE RELIABILITY OF PERFORMANCE OF RETARDED ADOLESCENTS ON THE HARRIS REVISION OF THE GOODENOUGH DRAW-A-MAN TEST (DAM) AND WHETHER THE DECLINE IN PERFORMANCE WHICH OCCURS IN NORMAL ADOLESCENTS AT THE MID-TEENS ALSO OCCURS WITH RETARDED ADOLESCENTS, 213 MALE AND 130 FEMALE SUBJECTS, AGED 11-20 YEARS AND WITH IQ'S OF 56-72, IN…

The results of this study show that, below ten years of age, stability in IQ scores from group verbal tests is considerably below that for Stanford-Binet. Non-verbal IQ scores were found to have substantially less stability than verbal IQs. (Author/DEP)

The D-48 and D-70 (Dominoes) Tests, which are parallel forms of a non-verbal, cross-cultural test, were administered to 82 college students and 112 high school freshmen. Criterion scores were obtained on the Otis Quick Score and grade point average for the college students, and the Iowa Test of Basic Skills for the ninth-graders. Results showed a…

The results of a modified version of the Goodenough-Harris Drawing Test are presented in relation to selected demographic and socioeconomic factors as they affect youths aged 12-17 years in the noninstitutionalized population of the United States. Findings are based on data gathered on a sample of 6,768 adolescents who participated in the Health…