Investigated the ability of young children to recognize themselves in delayed videotapes and recent photographs. Results suggested a significant developmental delay in young children's success on mark tests of self-recognition using delayed feedback as compared to live feedback, which may have important implications for characterizing the…

The way that children construct the representation they use to solve transitive inference problems was examined. Forty-eight children 4.5 to 5 years old and 48 children 6 to 7 years old were asked to learn either a three-item series or a four-item nonseries. They were asked to learn the relationships between different colors of faces that were all…

Examined the relationship between 7-, 9-, and 11-year old children's performance on a battery of selected Piagetian measures and on a proportional reasoning task. Found a strong relationship between stage level and (1) the complexity of hypotheses used, (2) the use of the proportional hypothesis, and (3) the overall use of logical hypotheses. (HOD)

In recent research, sequences of hypotheses observed during problem-solving have been categorized according to six hypothesis sampling systems that vary in efficiency. Three systems were characterized as strategies (focus, dimension check, hypothesis check) because they always lead eventually to solution. The remainder were called stereotypes…

The efficacy of small group instructional activities dealing with transitive inference, conservation, and class inclusion of length was investigated in a sample of kindergarten (N=44) and first grade (N=45) children (mean ages of 5 years, 7 months and 6 years, 7 months respectively). The two instructional sessions (10 to 15 minutes each) employed…

The ability of at-risk and handicapped infants and toddlers to interact with microcomputers was studied. One research phase focused on the parameters (motor, language, and cognitive developmental levels) for using the microcomputer. The overall project examines eight levels of use culminating in using a menu driven program for making choices to…

The developmental increase in the ability to solve problems is a puzzle. Does it come from basic changes in mental skills, or is it a matter of practice? This book from the Developing Child series synthesizes recent research examining children's problem-solving skills development. Chapter 1 presents the major themes: (1) there is increasing…