This study examined performance on transitive inference problems in children with developmental dyscalculia (DD), typically developing controls matched on IQ, working memory and reading skills, and in children with outstanding mathematical abilities. Whereas mainstream approaches currently consider DD as a domain-specific deficit, we hypothesized…

The study was designed to test the hierarchy of difficulty in the acquisition of principles of class and conditional logic for 120 children of normal intelligence, and to compare the relative rates of logic development for those children of normal intelligence with the rate of logic development found in a previous study involving 120 gifted…

One hundred and sixty gifted children (4-11 years old) participated in a study confirming a hierarchy of difficulties for logic activities and the existence of a developmental trend in logic learning. (CL)

Syllogisms with missing conclusions, missing minor and major premises, as well as missing negative conclusion and missing conclusion to a class chain, were given to 160 gifted children (20 each from ages 4-11) to investigate the order of difficulty of certain principles of logic and the age at which these principles are acquired. (MP)

A logical thinking test containing logical fallacies was administered to groups of 16-year-old and 17-year-old students (N=437) in Austria, Israel, and the Philippines. Students considered very able performed satisfactorily when required to choose a logically sound option, but exhibited weak performance when test items required a logically…

This study investigated the moral reasoning of 17 Finnish adolescents (ages 14,15) gifted in science. Students completed tests of their scientific and moral reasoning and wrote essays on moral dilemmas in science and everyday life. On the test of moral reasoning, the students' average score was that of the average 18-year-old. On the test of…

A project to improve higher level thinking skills of elementary students in Hillsborough County, Florida is reported as a feature article (66p). An introductory overview chapter reviews the literature on teaching thinking skills. Chapter 1 provides background information on the community and the two schools selected for the practicum. The second…

Thirty-seven normal and 33 gifted children from kindergarten classes and 26 retarded children from special classes with mean mental ages of 76 months, 80 months, and 72 months respectively, were initially tested for their understanding of the terms more, same, and less. All who had failed conservation of substance pretests using juice, sand, clay,…