"Linking" is a term given to a general class of procedures by which one represents scores X on one test or measure in terms of scores Y on another test or measure. A recent taxonomy by Holland and Dorans (2006; Holland, 2007) organizes the various types of links into three broad categories: prediction, scale aligning, and equating. In…

This article presents the author's comments on Simon and Lichten's "Defining Mental Retardation: A Matter of Life and Death." Lichten and Simon (2007) argued for the use of a Total Quotient (TQ) that combines existing IQ and adaptive functioning scores into a single index. They proposed that the TQ index will improve the accuracy of mental…

Three kinds of classificatory decisions that might be made using criterion-referenced tests (CRTs) are described, and methods to appraise the validity of each are subsequently discussed. Decisions that entail predictive, descriptive, and evaluative classifications comprised the three kinds of decisions described. Predictive classifications entail…

Critically evaluates in terms of predictive and concurrent validity a widely used method of identifying children at risk in peer relations. This method emphasizes children's total rate of peer interaction, regardless of the quality or skillfulness of the interaction. Recommendations are given for future research in this area. (Author/DB)

This essay notes the complexities inherent in classifying pervasive developmental disorders (PDD), especially when a single classification scheme is to be used for clinical, research, and administrative purposes. The paper considers principles of classification, symptomatology, the neuropsychiatric interface, the value of a multiaxial approach,…

The item bank (Rasch model) has serious limitations for the national assessment of subject performance: it requires agreement about the scope and organization of each school subject and about the difficulty level of each test item; and items tend to focus on factual knowledge, ignoring other desirable learning outcomes. (SJL)

Examines traditional psychometric approaches to measuring intelligence and recent work by cognitive psychologists to develop a rationale for a non-verbal reasoning test for 10- to 11-year-olds. Recent studies providing basis for analyzing structure of test items are outlined, and benefits of analyzing items at a sub-type level are discussed.…