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.…

Sets of randomly generated numbers are used to produce simulated data sets to illustrate that high heritability of a property within each of two populations may be consistent with a vanishingly small heritability in the combined population. (A response by Jensen appears in the next issue of Journal of Educational Statistics, p.385). (CTM)

A study was made of the effect of various learner and task characteristics on learning from scrambled frames in an instructional program. The independent variables were: sequence (scrambled vs. logical), grade, sequence length, criterion test complexity, sex, IQ, mathematics achievement, and reading comprehension. The dependent variables were:…

In studies of the relationship between masculinity-femininity and intelligence, data should be analyzed using correlational analysis for the complete distribution, rather than analysis of variance of extreme groups. The earlier work of Baucom and Welsh (EJ 171 822) was used as illustration. (BW)

Humphreys' criticisms (TM 503 269) of the work of Welsh and Baucom (EJ 171 822) are inappropriate since his findings are based upon a different measure of masculinity-femininity and a population which is somewhat different. Also, his insistence on correlational analysis to the exclusion of extreme group design is viewed as inappropriately…

GOALS OF THIS STUDY WERE TO DETERMINE THE INTERACTIONS BETWEEN EACH OF FOUR PERSONALITY CHARACTERISTICS (ANXIETY, COMPULSIVITY, CREATIVITY, AND EXHIBITIONISM), SEX, INTELLIGENCE, AND ACHIEVEMENT (BASED ON COMBINED TEST SCORES OF RECALL, TRANSFER, AND GENERATION OF HYPOTHESES) FROM PROGRAMED INSTRUCTION AND CONVENTIONAL INSTRUCTION. A YEAR OF…

Methodological tools such as analysis of variance designs can reflect bias. Difficulties in the interpretation of cross-cultural differences can be avoided only if the researcher considers all external variables which account for the variance. No variance should be left to be explained in terms of culture. (VM)

Content of school problems as posed by high school students, quality with which questions were formulated, and the relationship of content and quality to students' intellectual characteristics were investigated. Results reveal problem content most involved affectivity of teachers; problem formulation quality was egocentric; and content and quality…

Some specific intellectual abilities show consistent sex differences which vary in degree according to types of tests and samples examined. Reviews the empirical support for these differences, as well as the methodological difficulties, data and sampling limitations, interpretative biases, and contradictory results of much of the sex-difference…

Groups of retarded and nonretarded children were investigated as they learned three rules underlying problems adapted from the Raven Progressive Matrices Test: rotation, imposition, and subtraction. Results were seen as consistent with theories that emphasize transfer flexibility as one potential source of individual and comparative differences in…

A prospective longitudinal investigation related 76 maternal and infant variables to performance on the Metropolitan Readiness Tests (MRT) at age six. The 1,245 study subjects have been followed since birth. Their distribution on measures of intelligence and socioeconomic status is essentially normal. Subjects with high MRT scores were found to…

The rod and frame performance of 70 children, 5 to 7 years of age, with respect to sex and age differences, reliability, and its relationship to general intelligence, was investigated. The rod and frame test was administered individually and again following a period of 35 to 69 days, at which time the Lorge Thorndike Intelligence Test, form 1A,…

This paper focuses on the use of the variable race in educational research. Researchers are clearly considered to have the right to choose their variables. But, the use of race in a nonscholarly fashion is held to be professionally inadequate and often detrimental to black Americans. For years, researchers using race to make comparison s between…

This study attempts to determine whether the pattern of human abilities varies or remains constant over a range of ability levels. Scores on 12 aptitude and achievement tests for 11,743 subjects, subdivided into four groups according to intelligence and socioeconomic status, were used. A technique, developed by Joreskog, for simultaneously factor…