Findings indicate that (1) development of probability reasoning can be shown by an increasing monotonic trend with age, (2) verbal tests assess different aspects of this development than do nonverbal tests, (3) Piaget's ontogenetic age brackets are accurate, and (4) sex and intelligence are not significant variables. (MH)

Paper presented at the 24th annual convention of the California State Psychological Association, Corona, Calif., January 30, 1971. (DM)

The Stanford-Binet (Fourth Edition) (S-B:FE) and Kaufman Assessment Battery for Children (K-ABC) were administered in counterbalanced order to a sample of 30 non-handicapped, preschool children (13 males and 17 females). The children ranged in age from 3 years 11 months to 6 years 2 months, with a mean age of 4 years 11 months. Mean scores on the…

Right-handed sixth graders were administered the WISC Block Design and verbal and nonverbal versions of the Rod-and-Frame Test (RFT), measuring field dependence/independence. Results seemed to reflect a right hemisphere processing for the nonverbal RFT and a possible sex bias against girls in its traditional verbal administration. (Author/SJL)

Validity studies conducted with the Stanford Binet Intelligence Scale: Fourth Edition (SB:FE) are reviewed. Results support its validity as a measure of general mental ability and that it can distinguish between groups of youngsters with differing intellectual abilities. Recommendations are made for use of the SB:FE. (SLD)

A feedback inventory was administered to 259 seventh graders in Israel immediately following standardized group scholastic ability testing procedures to determine the subjects' attitudes toward the procedures. Few meaningful differences appeared across sociocultural or gender groups. Test attitudes did correlate with scores. (TJH)

Designed to investigate the performance of American Indian youth on the "Wechsler Intelligence Scale for Children" (WISC) compared to the "Chicago Non-Verbal" (CNV) for the purpose of establishing validity and reliability of the measurement and appraisal tools, this study analyzed test data from 71 Indian youth (aged 11 to 15)…

The two-level theory of mental abilities posits two broad classes of ability: level I (learning and memory) and level II (the "g" factor of intelligence tests, reasoning, abstraction, and problem solving). Levels I and II are hypothesized to interact with SES and/or race such that: (l) SES differences are greater for level II than for I,…

In an effort to improve performance of high school students on intelligence tests, a large-scale study involving 296 Yugoslavian students was carried out by Radivoy Kvashchev. Results indicate that it is possible to achieve small improvement and that improvement remains a year after the end of training. (Author/LMO)

Finds that extraverted children did better than introverted children on both a nonverbal coding task and simple and complex verbal fluency tasks. Notes that anxiety influenced girls' performances on the more complex verbal fluency task, but did not alter boys' performances. Compares these findings to those of similar studies of adults. (RL)

Adult musician's brains show structural enlargements, but it is not known whether these are inborn or a consequence of long-term training. In addition, music training in childhood has been shown to have positive effects on visual-spatial and verbal outcomes. However, it is not known whether pre-existing advantages in these skills are found in…

Among the individually administered 34 intelligence tests described in this bibliography are those for deaf persons, Spanish speakers, and other special populations. Tests requiring nonverbal responses are included. Most of the tests described in this bibliography provide I.Q. scores which are standard scores, with a mean of 100 and standard…

Most of the 28 tests included in this bibliography assess intelligence and provide an actual I.Q. score or one that is statistically similar. (A complete list of mental or cognitive ability tests is available separately.) Although all ages are represented, the majority of tests are targeted to grades 4 through 6. This document is one in a series…