Implications of test revisions for research.

Test revisions are increasingly common in psychology and neuropsychology in particular. However, such revisions may alter in complex ways the kind of information obtained, and they may assess traits, abilities, and conditions in ways different from earlier versions. This article outlines some of the problems associated with the revision of tests facing clinicians and researchers.

The relationship between learning disabilities and persisting delinquency.

Recidivism of delinquency in juveniles with learning disabilities (LD), the focus of the present study, has been virtually unexplored in previous research. Data from a longitudinal study initiated in 1978 are examined. Sixty-five subjects with LD (47 males and 18 females) who had been diagnosed and assessed between the ages of 8 and 12 years were located and, during a personal structured interview at the median age of 18 years, reported police contact.

Do attitudes towards persons with handicaps really shift over time? Comparison between 1975 and 1988.

A replication of a study by Spreen (1977) was conducted to assess whether a positive shift in attitudes towards persons with mental retardation has occurred. Undergraduate students (N = 191) were tested. Results compared to those of Spreen (1977) showed a positive shift over the 13-year period.

A comparison of the Rey and Taylor figures.

Forty healthy young adults were given the Rey-Osterrieth or Taylor Complex Figures in order to evaluate the comparability of these two measures. Copy trials of the Rey and Taylor Figures proved to be of equivalent difficulty. By contrast, 30-minute delayed recall of the Rey Figure was considerably more difficult than that of the Taylor Figure.