Argues that developmental psychologists need attitudes, methods, and conceptual schemes that integrate the distinctive contributions of both nature and nurture in order to study change and consistency in developmental functions, as well as individual differences in behaviors of interest. A conceptual scheme for early mental development is…

A reply to a rejoinder in which Pascual-Leone defended his quantitative model of children's information processing capacity. Trabasso focuses on empirical evidence in presenting his reply to this rejoinder. (BD)

This response to Brainerd and Reyna's paper (in this issue) argues that the common resources hypothesis can be applied to a wider range of phenomena than can the output-interference hypothesis. Presents results of a dual-task experiment under bidirectional deficits. Concludes that dual-task studies do not provide critical tests of the resources…

The concept of "structure" is discussed in connection with the biological and psychological sciences and shown, through a short historical analysis, to have been subject to imprecise use. The recent "structuralist movement" in the social sciences has also tended to cloud the meaning of structure rather than to clarify it. Using…

Presents an analysis of Pascual-Leone's quantitative model for the measurement of the cognitive capacity of children. Presents an experiment in which 8-year-old children are asked to reproduce single actions and combinations of actions modeled by an experimenter. (BD)

Data from 86 Early Childhood Education (ECE) projects in Oregon were analyzed using methods prescribed by the Value Added model for ECE evaluation. The extent to which appropriate model implementation procedures were followed is unknown. Thus, the results represent an empirical account of the model's estimates of project impact, rather than a…

This paper discusses the process of culture acquisition and recommends a new methodology for investigating this process. An examination of the relationship between culture acquisition and cognitive development is followed by a discussion of the way previous research has dealt with this relationship. It is argued that recent developments in…

A reply to a critique of Pascual-Leone's model of children's information processing capacity. (BD)

Measuring cognitive achievement gains in project evaluation is dealt with. This guide provides those concerned with project evaluation with the basic tools for conducting technically sound, interpretable evaluation studies. Exotic designs are avoided and five basic models which appear feasible to implement in real-world settings are focused on.…