Little research has been conducted on the effectiveness of training strategies for child care providers. The current study used an experimental intent-to-treat design to measure the impact of an established intervention, the on-site caregiver training component of the Program for Infant/Toddler Care (PITC), on child development and child care…

Design and results of an investigation attempting to analyze and improve children's solution processes in elementary addition and subtraction problems are described. As background for the study, a conceptual model was developed based on previous research. One dimension of the model relates to the characteristics of the tasks (numerical versus word…

This study examined the development of the rational number concept as a ratio. Preliminary to the description of the study is an introduction discussing constructivism and equilibration. The study itself tests whether equilibration theory holds, and if so, what is the nature of its "phases" and whether these are found at each of the "periods" of…

The specification and estimation of a partial least squares model is discussed in terms of assessing the magnitude of the effects of a variety of differences among Swedish schools on the cognitive and affective outcomes of lower secondary students in science. (Author/SB)

A selection of 14 tests of five cognitive factors was administered to 95 senior high school geometry students. These cognitive factors were then related to six measures of performance in mathematics and subjected to correlation analysis and stepwise regression. The findings indicated that the selected cognitive factors correlated with all measures…

Effects of ethnic/racial diversity among students and faculty on cognitive growth of undergraduate students are estimated via a series of hierarchical linear and multinomial logistic regression models. Using objective measures of compositional, curricular, and interactional diversity based on actuarial course enrollment records of over 6,000…

This 4-year longitudinal study of logical reasoning found complex interrelationships among different cognitive processes of children ages 6 to 15. Piaget's stage theory is discussed in the introduction, with a focus on the concrete operational stage in middle childhood. In the study, a representative array of logical concept tasks and short-term…

The second of three volumes, this document provides a description of the coding system, the rules and the procedures followed in interpreting and classifying 4,896 statements of desired program effects on Head Start children. The statements had been identified and rated by parents, staff and teachers in Input Workshops conducted by the Head Start…

To enable educators, parents, and policymakers to make sound decisions about programs for young children, the Committee on Early Childhood Pedagogy was established in 1997 by the National Research Council to study a broad range of research on early learning and development and to explore the implications for the education and care of children ages…