Two experiments examined the discrepancy between beliefs and behaviors of first 48 and then 20 clinical neuropsychologists in estimating premorbid intelligence quotient (IQ) of patients. Judges overstated correlations between IQ and its most important predictors, and they had difficulty behaving consistently with correlations they believed to…

Discusses the concept of social intelligence (SI), including its history and contexts in which it may be valid; assesses SI from the perspectives of information management, information policy, and information economics; reviews tools and techniques associated with SI, including networks, hypermedia, and connectionism; and considers education and…

Presents an overview of artificial-intelligence-based inductive learning techniques and their use in information science research. Three methods are discussed: the connectionist Hopfield network; the symbolic ID3/ID5R; evolution-based genetic algorithms. The knowledge representations and algorithms of these methods are examined in the context of…

Correlations on subscales of Wechsler intelligence quotient tests and the Revised Beta Examination were obtained for biologically related and unrelated individuals in 181 adoptive families in the Texas Adoption Project. Generally higher correlations for biologically related individuals support the importance of genetic influence in intellectual…

Assessment of 497 urban preschool children with developmental disabilities using the Vineland Adaptive Behavior Scales indicated a strong positive relationship between adaptive behavior and intelligence if measured globally. When Vineland domains were assessed separately, this relationship varied across domains and disability groups. With…

This study found that motor impairment levels of 12 Asperger syndrome children and 9 high functioning autistic children (ages 7-17) did not differ. Intelligence level was negatively correlated with motor impairment. Fifty percent of Asperger children and 67% of children with autism showed a clinically significant level of motor impairment.…

A maximum-likelihood confirmatory factor analysis was performed by applying LISREL VII to the Wechsler Adult Intelligence Scale-Revised results of a normal elderly sample of 225 adults. Results indicate that a three-factor model fits best across all sample combinations. A mild gender effect is discussed. (SLD)

Speed and efficiency of elemental processing among the gifted were studied by comparing 55 gifted and 53 nongifted junior high school students on elementary cognitive tasks of different complexity. Results reveal that differences are related to requisite processing complexity, suggesting differences in speed and efficiency of lower-order cognitive…

Changes in functioning related to aging were examined over a 3- to 4-year period in 34 adults (ages 22-56) with Down syndrome. Changes related to aging were minimal; neither effects of age at entry nor change over time were significant. IQ at entry significantly affected performance on neuropsychological and behavioral measures. (Author/SW)

The entire thesis of "The Bell Curve" disintegrates due to biased use of data, misrepresentations, and logical inconsistencies. Five basic flaws are: inferring causality from correlation, use of dubious racial categories, contradictory arguments concerning the immutability of cognitive ability and the relative contributions of heredity…

Comments on some methodological limitations of the research base of "The Bell Curve": blind use of the normal distribution (bell curve); avoidance of nonnormal statistical distributions, which are more appropriate for some social and economic characteristics; copious use of percentiles and quintiles, inappropriate with nonnormal…

Hernnstein and Murray raise the specter of a cognitively stratified society that is resistant to change because of heredity and that serves the interests and perpetuates the advantages of the cognitive elite. The authors' policy remedies that focus on the individual and local community can do little to promote genuine equality and social justice.…

In response to "The Bell Curve," notes that the effects of IQ on crime and delinquency are mediated by gender and age in a fashion that is not readily explained by a reduction to genetic differences. Discusses possible interrelationships among IQ, delinquency, and school performance, and suggests that the causal link between IQ and…

Interviewed Israeli students to assess the Adult Attachment Interview's test-retest reliability and effects of the interviewers on the interview itself. Information about subjects' memory and intellectual abilities was obtained from external sources. Found a high degree of interrater and test-retest reliabilities, irrespective of interviewers.…

Describes exploratory and confirmatory analyses of verbal-performance procedures to illustrate concepts and procedures for analysis of correlated factors. Argues that, based on convergent and discriminant validity criteria, factors should have higher correlations with variables that they purport to measure than with other variables. Discusses…