Identity research largely emerged from clinical observations. Decades of empirical work advanced the field in refining existing approaches and adding new approaches. Furthermore, the existence of linkages of identity with psychopathology is now well established. Unfortunately, both the directionality of effects between identity aspects and…

Developmental science rests on describing, explaining, and optimizing intraindividual changes and, hence, empirically requires longitudinal research. Problems of missing data arise in most longitudinal studies, thus creating challenges for interpreting the substance and structure of intraindividual change. Using a sample of reports of longitudinal…

Multiple methods are vital to understanding development as a dynamic, transactional process. This article focuses on the ways in which quantitative and qualitative methodologies can be combined to enrich developmental science and the study of human development, focusing on the practical questions of "when" and "how." Research situations that may…

Response to article EJ 054 508. (CB)

This reply refers to article PS 502 486 which in turn is a response to authors' comments in EJ 054 508. (CB)

This reply refers to PS 502 345 which in turn is a criticism of EJ 045 083. (CB)

Presents: (1) an outline of prototype age-related changes in cognitive structure; (2) an application of these interrelationships to some existent research and concepts in the abilities domain; and (3) a discussion of the multifactor approach in structuring age-related change to organismic views of cognitive development. (SDH)

Article refers to EJ 045 083. (CB)

Discusses procedures and considerations involved with secondary analyses of longitudinal databases. Procedures involve (1) formulating questions; (2) creating a feasibility matrix; (3) reformulating questions; (4) creating derived variables; (5) performing data reduction; (6) analyzing data; and (7) interpreting results. Problems associated with…

Secondary data analysis and interdisciplinary collaboration have a great deal to offer developmentalists. The research traditions of economists and sociologists have produced longitudinal studies that use national samples, develop useful statistical techniques for approximating experimental conditions, and result in theoretical insights into…

Discusses the use of new statistical procedures in a study of the enduring effects of prenatal alcohol exposure upon the neurobehavioral development of some 500 children born in 1975-76. Explains how the Partial Least Squares (PLS) methodology can summarize the data powerfully while avoiding familiar inferential pitfalls. (MDM)