The study investigated sequence learning from stochastic feedback in boys with Autistic Spectrum Disorder (ASD) and typically developed (TD) boys. We asked boys with ASD from Nigeria and the UK as well as age- and gender-matched controls (also males only) to deduce a sequence of four left and right button presses, LLRR, RRLL, LRLR, RLRL, LRRL and…

HYPOTHESIZING THAT CONGENITALLY BLIND ADULTS WOULD SCORE LOWER ON TESTS OF ABSTRACTION THAN ADVENTITIOUSLY BLIND OR SIGHTED ADULTS, THIS STUDY TESTED 25 CONGENITALLY BLIND, 25 ADVENTITIOUSLY BLIND, AND 25 SIGHTED SUBJECTS. THE WECHSLER ADULT INTELLIGENCE SCALE (WAIS) VOCABULARY TEST WAS ADMINISTERED TO EACH GROUP AND RESULTS SHOWED NO SIGNIFICANT…

Research based on author's doctoral dissertation, submitted to the Graduate School of the University of California at Los Angeles.

This study explores how an individual's cognitive style influences the development of a strategy in a concept identification task and how an individual tests his hypotheses in a concept learning set task. Subjects for the research were given the Hidden Figures Test as a means of identifying their cognitive styles. Half of the subjects were…

Performance of children with and without language-learning disabilities (ages 9-13) on 2 types of cognitive tasks was compared. Children (n=14) with language-learning disabilities performed at a level commensurate with a language-matched group on a concept formation task and at a level commensurate with a mental-age matched group on an…

Argues that current testing of student understanding provides insufficient information to a researcher investigating strategies for changing students' explanatory ideas. Outlines a new test based on recent work in child development. (DDR)

A study was conducted to clarify a number of issues related to Piaget's theory of invariant sequantiality in child cognitive development. Ss were 143 middle-class white children of bright, average and retarded psychometric abilities (measured by performance on the Stanford-Binet Intelligence Test). Bright and average Ss were chronologically aged…

Characteristics of 11 Repgrid indices of cognitive structure, particularly Smith and Leach's hierarchical complexity index, are investigated among boys and girls, aged 9-15. The Smith & Leach index is shown to be significantly reliable; but in common with seven indices of cognitive differentiation, it is of dubious validity. (Author/GDC)

This dissertation abstract summarizes a research study which investigated the hypothesis that bilingualism in children would result in: (1) increased ability to analyze syntax; (2) acceleration in the time of arrival of the stage of concrete operational thinking; and (3) an increase in cognitive flexibility or ability to mentally shuffle material.…

Twenty-six test variables for psychological differentiation and cognitive abilities were factor analyzed with a view towards replication of certain factors of perceptual and conceptual differentiation and related these factors to cognitive abilities. (Author)

This study compared the performance of 59 black students and 32 white students on tasks requiring formal operations. The study compared groups from different racial backgrounds and similar socioeconomic environments. It was assumed that if socioeconomic difference was a more weighty experience factor than was racial difference, then differences in…

OVER 40 ARTICLES AND STUDIES RELATED TO THE PIAGETIAN THEORY OF COGNITIVE DEVELOPMENT ARE CRITICALLY REVIEWED AS A BASIS FOR SUGGESTING APPLICATIONS OF THE THEORY TO EDUCATIONAL EVALUATION. PIAGET'S CONCEPTS ARE ANALYZED WITHIN TWO BROAD CATEGORIES, THE STAGE OF CONCRETE OPERATIONS, FROM APPROXIMATELY SEVEN TO 11 YEARS OF AGE, AND THE STAGE OF…

This book deals with cognitive development from the perspective of the author's theory of conceptual learning and development (CLD) and from a Piagetian perspective. Chapter I provides an overview of CLD theory and also identifies and discusses the Piagetian constructs of stage, groupement structures, and equilibration. Chapter II focuses on the…

This report is part of a general study of Reference Measures for Cognitive and Noncognitive Factors. The main activity being reported is the development of "factor-referenced" or "marker" tests for several recently identified cognitive factors. A secondary activity involves the study of possible relationships to factors already…

Theory and research regarding four levels of concept attainment and three uses of concepts as specified by the model of conceptual learning and development (CLD) are described. Subtests, utilizing three-dimensional stimuli, were developed to assess each level of attainment and each use of the concept equilateral triangle. The tests were…