The performance of 18 neurocognitively impaired learning disabled children (6 to 10 years old) on visual abstraction was compared to that of 20 intact learning disabled (LD) and 20 normal children. The Abstraction Test for Children was specifically developed and standardized as the measure of abstraction. (Author)

Reports a new technique for assessing conservation of liquid quantity using sealed bottles. When used with a sample of 40 six- and seven-year-olds, results correlated strongly with those of the traditional Piagetian task involving pouring. (SJL)

Evidence bearing on the relationships between profiles of neuropsychological assets and deficits, subtypes of learning disabilities, and patterns and degrees of psychosocial functioning is reviewed. Conclusions related to the neurodevelopmental bases of psychosocial functioning in children with nonverbal learning disabilities are emphasized. (SLD)

Using a factorially complex test on a highly homogeneous population is explored, and a procedure is demonstrated that can statistically justify using a cognitive test on which Cronbach's alpha is low. The example involves 649 accountants (auditors). Results indicate that unbundling test and sample provides justification for using the data. (SLD)

Makes the case that "g" (general intelligence) can arise from the effect of shared genes influencing cognitive test performance and provides a simple mathematical demonstration of how this occurs. Predicts the need for a profound shift in the search for biological bases of "g." (Author/SLD)

This study tested the hypothesized negative impact of cognitive test anxiety in the test preparation, performance, and reflection phases. Data available from the participants (n=124) included test anxiety, study skills, perceived threat of tests, and performance attributions. Preparation phase data revealed, compared to their counterparts, that…

In this technical report, we describe the development of cognitive diagnostic test items that form the basis of the diagnostic system for Project DIVIDE (Dynamic Instruction Via Individually Designed Environments). The construct underlying the diagnostic test is division of fractions. We include a description of the process we used to identify the…

When serial neurocognitive assessments are performed, 2 main factors are of importance: test-retest reliability and practice effects. With children, however, there is a third, developmental factor, which occurs as a result of maturation. Child tests recognize this factor through the provision of age-corrected scaled scores. Thus, a ready-made…

Problems facing African American students with special needs are numerous and complex. Although processes and procedures are in place to properly serve these students, far too many become ensnared in webs of bureaucracy and benign neglect. This article examines African American students? experiences with special education in Milwaukee Public…

Older subjects responded slower than younger subjects on a spatial task which required them to rotate mentally a perspectively drawn figure in order to judge whether it was congruent with a second figure. (Author)

THE PRIMARY PURPOSE OF THIS DISSERTATION IS TO DEVELOP A STRUCTURAL THEORY, ALONG FACET-THEORETIC LINES, FOR THE PERCEPTION OF MORSE CODE SIGNALS AND RELATED RHYTHMIC PATTERNS. AS STEPS IN THE DEVELOPMENT OF THIS THEORY, MODELS FOR TWO SETS OF SIGNALS ARE PROPOSED AND TESTED. THE FIRST MODEL IS FOR A SET COMPRISED OF ALL SIGNALS OF THE…

THE HYPOTHESIS THAT RATINGS ON CONGENIALITY AS A COWORKER GIVEN TO TEACHERS WILL BE IN PART A FUNCTION OF THE ORGANIZATIONAL STATUS OF THE RATER WAS TESTED. A SECONDARY PROBLEM WAS TO TEST THE HYPOTHESIS THAT DOGMATIC SUBJECTS MORE THAN NONDOGMATIC SUBJECTS WOULD EXHIBIT COGNITIVE BEHAVIOR WHICH INDICATED (1) GREATER DISTINCTION BETWEEN POSITIVE…

This study investigated statistical methods for identifying errors in Bayesian networks (BN) with latent variables, as found in intelligent cognitive assessments. BN, commonly used in artificial intelligence systems, are promising mechanisms for scoring constructed-response examinations. The success of an intelligent assessment or tutoring system…

A pilot study and two replication studies were made to determine why the autokinetic test is so effective as a measure of reality closeness and to add to the understanding of the autokinetic phenomenon. (DB)

The specific cognitive deficits which might account for the poor school performance of Spanish American school children were examined. The results suggest that Spanish American children are deficient on the input side of communicative skills, especially in understanding sentences and pictures. Bilingualism does not appear to be an important…