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

Since the mid-1960s, longitudinal surveys specifically designed to be publicly available to the research community have been carried out. Some recent surveys contain measurements of children's development and present opportunities for interdisciplinary collaboration involving developmental psychologists. Benefits of collaborative research are…

Replicates earlier studies and shows that children's ability to process syntactically well-formed sentences increases over the early school years. (Author/ED)

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)

Evaluated the extent to which the Graduate Record Examinations General Test measures the same constructs for older test takers that it does for younger examinees. Results suggest that the convergent validity of the test is similar across the age groups, but discriminant validity is somewhat different for older examinees. (Author/RWB)

To examine the ability of the correction factor epsilon to counteract statistical bias in univariate analysis, an analysis of variance (adjusted by epsilon) and a multivariate analysis of variance were performed on the same data. The results indicated that univariate analysis is a fully protected design when used with epsilon. (JMB)

Calls attention to several errors in a recent application of canonical correlation analysis. The reanalysis contradicts Cropley's conclusion that "creativity tests can be said to possess reasonable and encouraging long-range predictive validity." (Author/SDH)

Article refers to EJ 045 083. (CB)

Two ways of studying lives in context through time are analysis of longitudinal data and secondary data analysis of long-term studies intended to answer questions not originally posed. The opportunities for, and limitations of, these types of analysis; their relevance to policy; and their applicability to interdisciplinary research are considered.…

Total of 305 adults ranging from 19-84 years of age and 100 college students were given a battery of tests that measured cognitive abilities and memory. Results indicated that a large proportion of age-related variance in cognition and memory was reduced when statistical control procedures, such as hierarchical regression, were used to eliminate…

Main and interactive effects of child care quality, stability, and multiplicity on infants' attachment security, language comprehension, language production, and cognitive development at 15 months were examined using data from the National Institute of Child Health and Human Development (NICHD) Study of Early Child Care. Thirty-nine percent of the…

Two experiments tested the applicability of Anderson's relative-weight averaging model to children's moral judgments based on intentions and consequences. (Author/JMB)

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)