The research summarized in this paper was conducted on the Pine Ridge Indian Reservation in South Dakota. The purpose of the developmental study was to explore the cognitive aspect of development rather than to explore the personality as a whole. The Clinical Exploratory Method of Piaget was employed, which focuses primarily upon an experimental…

This is the second report on intellectual development of children 6-11 years of age in the noninstitutionalized population of the United States as estimated from the Vocabular and Block Design Subtest data of the Wechsler Intelligence Scale for Children (WISC) obtained in the Health Examination Survey of 1963-65. It contains findings by selected…

Six children with Down's syndrome who had shared the same preschool 3 to 4 years were administered psychological tests to see whether there were characteristics of mental functioning held in common. (Author)

This study investigates the nature and the factor structure of infant intelligence. The Bayley Mental Scale items were administered. According to the analysis, intelligence at any age is a set of separate mental abilities at each age, and there are a variety of paths through which mental development occurs. (JAZ)

Since early research had shown that a total score on 27 Piagetian tasks was very highly correlated with a Wechsler and achievement composite, a study investigated the possibility of shortening the Piagetian test by means of classical analysis methodology. (HOD)

Reviews some better known Piagetian scales; analyzes and compares Piagetian-based and conventional intelligence measures. Reviews research comparing the two methods and examines whether racial groups' performance differs on Piagetian measures. Discusses the implications of Piagetian assessment procedures for school psychologists. (Author/RC)

Mothers were asked to predict their children's responses to standardized intelligence test items. Negative correlation was expected between inaccurate maternal knowledge of children's ability and degree of children's psychological development. False maternal predictions correlated - .80 with correct children's responses. Nearly all of the…

Raven's Progressive Matrices test items were analyzed for M demand (Pascual-Leone's developmental construct). Data on second- and third-grade subjects were analyzed for extent of absolute agreement of Raven and Figural Intersection Test (FIT) scores. Raw scores on the Raven could be deduced on the basis of FIT performance. (Author/RD)

In the current paper we describe the methodology and results of the Oswego study, in light of D.V. Cicchetti, A.S. Kaufman, and S.S. Sparrow's (this issue) criticisms regarding the validity of the human health/behavioral claims in the PCB literature. The Oswego project began as a replication of the Lake Michigan Maternal Infant Cohort study.…

This study of 145 middle class first grade students investigated whether a relationship exists between early acquisition of Piagetian conservation tasks and gifted performance on a mental abilities test. Students were evaluated individually on tasks involving the conservation of number, of liquid quantity, and of mass. A moderate correlation was…

THE MAJOR PURPOSE OF THIS STUDY WAS TO DEVELOP A COGNITIVE TRAINING PROGRAM DESIGNED TO INCREASE MENTALLY RETARDED AND NORMAL SUBJECTS' PERFORMANCES ON FLEXIBILITY-TYPE TASKS AND GENERAL INTELLIGENCE TESTS. A TEST BATTERY OF FIVE TESTS (STENCIL DESIGN, EMBEDDED FIGURES, PICTURE ANOMALIES, OBJECT SORTING, AND TELL ABOUT THIS), DESIGNED TO MEASURE…

This study attempted to prove a dichotomy between cognitive processes as measured by Piagetian reasoning tasks and those measured by traditional intelligence tests. A battery of tests (Slosson Intelligence Test, Durrell's Silent Reading and Listening Comprehension Test, Raven's Coloured Progressive Matrices, and the Piagetian Measure of Cognitive…

The author presents a discussion of certain portions of Arthur Jensen's controversial article. The general conclusion is that Jensen has not provided substantial evidence that there are differences in neural structure among children from different social or ethnic groups which are genetically determined. The reviewer reacts to Jensen's conclusion…

In this study, the relationship between a refined measure of the learning environment of the home and the levels and profiles of a set of mental ability scores of children from five Canadian ethnic groups was examined. Significant group differences persisted in the verbal, number, and reasoning scores. (Author/JMB)