Recognizes the attraction of Goal Attainment Scaling (GAS), a technique that uses a scale to measure client's achievement, but suggests that there are concerns about the calculation of its standard scores. Examples show how GAS may be used in service development, whether or not numerical values are attached. (Author/CR)

In this response to critiques (Mudford, Hogg and Roberts 1997, 1999) of the use of behavior states in research involving individuals with mental retardation, it is argued that the work on behavioral state analysis by Robert D. Guess has contributed to the field at the practical, empirical, and theoretical levels. (Contains references.) (CR)

This evaluative review describes the history of applied behavior analysis in the area of developmental disability and its strengths and weaknesses. Emphasis is placed on the fact that behavior analysis can continue to provide valuable insights into the education and treatment of people with mental retardation. (Author/CR)

Discusses research in creativity with particular emphasis on the problems encountered in assessing creativity from a life-span developmental framework. Alternative developmental models and measures are discussed as future research recommendations for the assessment of life-span creativity. (Author/RH)

Effective internal evaluation requires dependable data for decision makers. Influences on clinical and fiscal data dependability are discussed. The focus is on organizational influences, data quality control, and staff concerns. (Author/PN)

This article critiques the research methodology used by Mudford, Hogg, and Roberts (1999) that resulted in a failure to achieve inter-observer agreement on adults with mental retardation when using an experimental, 13-category behavior state code. Arguments are provided on why their videotape study does not meet requirements of acceptable…

The 12 subtests of the Ball Aptitude Battery (BAB) listed in the administration manual were described. The reviewer believes this aptitude battery, designed for use with high school students and adults in job selection and placement, needs major improvements. It is suggested that the BAB be used solely for research purposes. (DWH)

The construct of spatial ability is discussed and it is suggested that some widely used and cited tests that are called spatial ability tests may not be valid measures of that ability. Instead, their items may be solved using mental processes that are clearly analytical and not spatial in nature. Four studies involving the analysis of subjects'…