Tested children with apparatus that dropped balls through clear or opaque interwoven tubes. Found that older children could solve configurations with greater number of tubes than younger children. Success with clear tubes did not transfer to opaque tubes. Significantly, errors were consistently directed to location directly below ball's last seen…

This article comments on the reporting by Douglas Detterman and others (EC 604 995) of a larger magnitude of g among young adults with mental retardation. Reliance on g-based measures for screening and diagnosis may thus be misleading, by implying that those tested were less differentiated than may be the case. (JDD)

Pretests measuring critical thinking ability and mental alertness were administered to 72 first-year college students at the beginning of an introductory computer programing course. Posttests administered at the end of the semester showed significant improvement in both areas, indicating that instruction in programing improves students' critical…

A sample of 57 American Indian and 60 white students (ages 7-12) referred for high ability assessment were administered the Kaufman Assessment Battery for Children. Indians scored higher than whites in Simultaneous Processing, whereas whites scored higher than Indians in Sequential Processing. (Author/JDD)

Describes a study conducted at Florida Community College in Jacksonville to examine the relationship between students' learning style awareness and academic achievement and to determine whether completion of a learning style inventory by a sample of 78 anatomy students would affect academic achievement. (DMM)

A study of 255 fifth graders and 177 eighth graders from 12 randomly chosen Mexican schools was conducted to identify and characterize the students' computational estimation skills and strategies. Data from computational estimation tests and selected interviews revealed that Mexican students employed general estimation processes similar to U.S.…

Sources of continuity among nine measures of infant cognitive processing and later childhood intelligence quotient were examined through developmental structural equation models applied to a sample of 208 twin pairs measured from 7 to 36 months. Skills assessed appear related to general cognitive ability in a relatively unstable manner. (SLD)

Suggests that individual differences in visual imagery and failure to realize their existence may have affected theories of thought throughout history. Offers possible explanations for the failure to validate thinking style differences in educationally significant ways. Argues that increased understanding of mental imagery can improve teaching.…

A measurement and psychometric examination of cognitive tasks was carried out with 195 undergraduates, investigating stability of latencies and number correct scores over a 2-week period and relations with standardized test and ability measure scores. Results are discussed in terms of the need for evaluating cognitive task measurement properties.…

Investigated whether children's ability to recognize themselves in delayed video feedback indicates change in self awareness. Parallel results in both conditions studied, and the likelihood of false positives and false negatives indicate that the video test in its present form may not be a valid measure of differences in self-awareness. (Author)

Individual differences in confidence judgments made by subjects on the accuracy of their answers to psychological test items were studied with 271 Australian college students. Findings suggest that confidence ratings, like the accuracy scores from the tests of human abilities, are stable and reliable measures of between-subjects variability. (SLD)

Describes a study that measured the disposition toward critical thinking of freshmen enrolled in California State University's (Northridge) College of Business Administration and Economics. Reports: (1) a positive tendency toward critical thinking for these students; (2) no significant differences in this tendency among ethnic groups; and (3) no…

In this study we investigated the putative role of cognitive dysfunction, diagnosis (schizoaffective versus schizophrenia disorder), and alcoholism as risk factors for suicidal behavior among individuals with DSM-IV schizophrenia or schizoaffective disorders. Subjects received cognitive tests and medical records were reviewed for evidence of a…

In this study 149 kindergarten children were assessed for knowledge of letter names and letter sounds, phonological awareness, and cognitive abilities. Through this it examined child and letter characteristics influencing the acquisition of alphabetic knowledge in a naturalistic context, the relationship between letter-sound knowledge and…

This test, the Silver Drawing Test (SDT), evolved from a belief that the intelligence of children and adults who have poor language skills tends to be underestimated. The aim of the SDT is to provide an instrument for assessing the cognitive skills of individuals who have difficulty understanding others and making themselves understood. There are…