Fuzzy trace theory posits that during development the use of verbatim information for solving transitive relationships shifts to the use of gist information. In cognitive developmental research that uses a cross-sectional design, the binomial mixture model is often used to identify such shifts. Because the binomial mixture model assumes equal task…

Describes a computer-assisted cognitive training program used to treat a 13-year-old Caucasian male with attention deficit hyperactivity disorder. Pre-/posttest differences on the Conners Parent Rating Scale revealed a decrease on all subscales. Scores on the Conners Teacher Rating Scale were less conclusive. A follow-up revealed that most gains…

Relates an experiment designed to test the hypothesis that cognitive change resulting from information inputs can be represented as linear motion of concepts in multidimensional space. (MH)

The development of the "Directories of Unpublished Experimental Mental Measures" is traced. Two decades ago, the senior author of this research began the compilation of a list of non-standardized experimental test instruments developed by behavioral and social sciences researchers. Making this information available was intended to help…

Four studies were conducted to examine the manner in which cognitively impulsive and reflective children use private speech to control their behaviors. The first study was a naturalistic observation of a group of impulsive (N=8) and reflective (N=8) nursery school children, identified by the Matching Familiar Figures Test. The Impulsive and…

The purpose of this study is to determine whether the teaching of cognitive knowledge affects attitudes dealing with race, social class, caste, and religious and ethnic groups. Treatment consisted of teaching an anthropological-sociological unit, Man and Myth: A Unit in Ethnic Relations, which presents knowledge generated by research in the…

The major objective of this series of studies was to clarify the concept of mastery motivation and to develop measures of this concept applicable to 1-year-old children. Three studies were made with 44 infants, aged 12 to 13 months. The first study, "Aspects of Mastery Motivation and Cognitive Functioning," utilized structured situations…

Mathematically precocious adolescents were studied in order to identify sex differences in self-concept/self-esteem which exist at a stage when intellectual differences are emerging. Subjects were 166 males and 68 females, ages 12-15 years, enrolled in a summer residential program for talented youth. Mean SATM scores for the experimental…