As test standards and research literature in general indicate, definitions of test bias and item bias vary considerably, as do the results of existing methods of identifying biased items. The situation is further complicated by issues of content, context, construct, and criterion. In achievement tests, for example, content validity may impose…

Statistical bias in measurement and ethnic-group bias in testing are discussed, reviewing predictive and construct validity studies. Item bias is reconceptualized to include distance of item content from respondent's experience. Differing values of mean and standard deviation for bias parameter are analyzed in a simulation. References are…

This article examines the potential contribution of latent trait models to the study of intelligence. Nontechnical introductions to both unidimensional and multidimensional latent trait models are given. Multidimensional latent trait models can be used to test alternative multiple component theories of test item processing. (Author/CTM)

Research on the potential effects of different item arrangement schemes on item statistics is reviewed for three separate periods. Earliest studies investigated the simple main effect of item order on test performance. The late 1960s emphasized interactions between item order and examinees' characteristics. Current concern focuses on item…

Studies of sex differences in test performance have identified the content of test items, the context in which they are set, and the constructs purportedly underlying the item as important variables influencing performance. Test content often reflects experiences that traditional social roles have discouraged women from exploring. Often, the item…

Empirical studies are reviewed of sex bias and psychometric bias in aptitude and achievement tests. It is concluded that: (1) of four studies of sex bias, all found that the language used in the tests favored males, but, at the elementary-secondary level, sex bias has been decreasing; (2) of 15 analyses of psychometric bias, all found an…