Collaborative skills are crucial in knowledge-rich domains, such as medical diagnosing. The Collaborative Diagnostic Reasoning (CDR) model emphasizes the importance of high-quality collaborative diagnostic activities (CDAs; e.g., evidence elicitation and sharing), influenced by content and collaboration knowledge as well as more general social…

Fluid intelligence and conscientiousness are important predictors of students' academic performance and competence gains. Although their individual contributions have been widely acknowledged, less is known about their potential interplay. Do students profit disproportionately from being both smart and conscientious? We addressed this question…

Scientific reasoning refers to the thinking skills involved in conceiving and conducting an investigation. This study examined how proficiency in performing these skills develops during the upper-elementary school years. A sample of 157 children (age 7-10) took a performance-based scientific reasoning test in three consecutive years. Four distinct…

The moral reasoning development of college freshmen was investigated over the course of a semester. Participants were tested at the beginning of the semester and at the end of the semester and were either in a course that required active engagement in critical thinking (e.g. perspective-taking, reflection) about social and political issues or in a…

This study investigated the relationship between the attainment of a Piagetian formal operational concept (proportion) and personal characteristics in 117 children 10 to 12 years old. (SB)

This study delineates modes of thinking that differentiate exceptionally gifted children from more moderately gifted peers. Cognitive differences include viewing the simple as complex, a need for precision, viewing the complex as simple, abstract reasoning ability, early grasp of essential elements of an issue, high capacity for empathy,…

A study involving 31 adults with Down syndrome investigated their ability to reason. Results found they did not differ from typically developing children, matched on expressive and verbal ability, in transitivity and non-verbal analogical thinking; however, they did differ in categorical reasoning, classical verbal analogies, and short-term…

The papers contained in this document were originally presented at the May 1978 conference on Modeling Mathematical Cognitive Development sponsored by the Models of Learning Mathematics Working Group of the Georgia Center for the Study of Learning and Teaching Mathematics. Most have been revised to reflect comments and suggestions made at the…

Construct organization was inferred from subjects' responses to a specially modified implication grid. Both developmental predictions and the validity of grid measures received excellent support from the analysis of children's theories of their peers as a function of their own age, sex and verbal intelligence. (Author)

Twenty-eight sign language interpreters participated in a battery of tests to determine if a profile of cognitive, motor, attention, and personality attributes might distinguish them as a group and at different credential levels. Eight interpreters held Level II and nine held Level III Virginia Quality Assurance Screenings (VQAS); the other 11…

This paper repudiates Jensen's hypothesis that differences in IQ scores and scholastic achievement in Negro and white children are genetically based. Specifically, Jensen's identification of IQ scores as a measure of abstract reasoning and problem solving and of levels of ability, and his evaluation of the magnitude of the genetic component in IQ…

The purpose of this pilot study was to provide data from which tentative conclusions could be made about adults and their ability to handle literary abstractions. A sample of 93 inmates (all male, 26 Negro, 67 white) at Sumter Correctional Institution was randomly chosen and asked to verbalize their reactions to four comic strips and to write…