Relates the development of theories concerning gender differences in mental ability and reexamines them using meta-analysis. Finds that the greatest difference is in one type of spatial ability, mental rotation. There is only a small difference in mathematical performance, and no difference in verbal ability. (DM)

A raised-line form of the TONI (test of nonverbal intelligence), a graphic performance test, may effectively measure performance IQ of blind adults. Pilot studies show that while the tactile TONI may be too difficult for low-IQ adults, it may identify some kinds of learning disabilities and brain damage in adults with blindness. (Author/PB)

Tested criterion-related validity of Wechsler Intelligence Scale for Children-Revised (WISC-R) performance scale with Stanford Achievement Test, Special Edition for Hearing-Impaired Students (SAT-HI). Results indicated WISC-R performance scale has adequate criterion-related validity and SAT-HI percentile ranks may provide a better metric than…

The Performance Scale of the Wechsler Adult Intelligence Scale-Revised was administered to 185 hearing-impaired young adults. A gender difference was found only on the Digit Symbol subtest, where females outperformed males. The high degree of factorial similarity between males and females indicated that the underlying construct being measured does…

To establish the relationship between categorization ability and psychometric intelligence, 98 ninth graders in Israel were instructed to group 28 common Hebrew nouns into categories and were given a battery of intelligence tests. Results are discussed in terms of their impact on the design of intelligence testing. (SLD)

Age differences in intellect as reflected in performance on the revised Wechsler Adult Intelligence Scale (WAIS-R) from age 20 to 74 years were evaluated for 1,480 adults from the WAIS-R standardization sample, while educational levels were held constant. Implications of the results for intelligence testing are discussed. (SLD)

Mental test data cited by H. T. Epstein as supporting his theory that new concepts should be taught during periodic spurts in childhood intellectual development (at 3-10 months; and 2-4, 6-8, 10-12 or 13, and 14-16 or 17 years) are reanalyzed. It is found that the data do not substantiate Epstein's conclusions. (TJH)

This response argues that Linda Siegel's paper (EC221505) confuses measures of intelligence with predicted achievement, calls for doing away with the construct of learning disabilities rather than the discrepancy definition model, and overlooks the need to determine which students qualify for special educational services for treatment of learning…

Investigated validity of Stanford-Binet Intelligence Scale-Fourth Edition and Kaufman Assessment Battery for Children with 89 preschool Head Start children from low-income families, using Stanford-Binet Intelligence Scale-Form LM as criterion measure. Found some support for concurrent and construct validity of both instruments for use with…

Explores the use of common sense testing and measurement as a means of predicting real-world performance. The authors discuss practical versus book knowledge, examine several empirical studies of practical intelligence, describe tacit knowledge and the instruments used for testing it, and present findings from a tacit knowledge research program.…

Validity differences for a "g" (general factor of intelligence) score calculated on the Armed Services Vocational Aptitude Battery (ASVAB) alone versus the ASVAB plus 9 experimental tests were determined for 3,922 military recruits. A validity gain of potential utility was observed for hands-on performance measures. (SLD)

Explains some of the difficulties encountered in teaching African American adults at Martin University. States that many of the students the author taught were poorly prepared for higher education. Discusses language differences between white Americans and African Americans. Argues that IQ tests are poor measures of intelligence. Defines andragogy…

Discrepancies between IQ and Index scores on the WISC-III were investigated for a sample of students with Specific Learning Disability (SLD) and with mental retardation and evaluated but not classified. Consistent with the WISC-R literature, the discrepancies between Verbal and Performance IQs and higher Performance than Verbal IQs (which…

A modal model of information processing was defined, and nine tasks that could be completed by persons with mental retardation were developed to operationalize the model. Results showed that individual differences in higher mental processes are highly dependent on basic cognitive abilities and can be predicted from them. (Author/JDD)

This article responds to commentaries (EC 604 996-998) on a paper by Douglas Detterman and others (EC 604 995), which developed and tested a modal model, with young adults with and without mental retardation as subjects, to assess basic cognitive abilities in relation to cognitive deficits. (JDD)