Abstract

In William Angoff's recent article in Theoretical and Philosophical Psychology, he presented several thought-provoking philosophical issues of concern to measurement-oriented psychologists. The first of these issues, the notion of test and item bias, is the topic of the present paper. In his article, he reports that average score differences in the performance on many cognitive tests have appeared among racial or ethnic groups. Twenty to thirty years ago, differential psychologists, summarizing and critically evaluating studies demonstrating performance differences on tests and in other behavior among cultural, ethnic and racial groups, agreed that such group differences indeed existed, but that causal interpretations differed markedly among the investigators at the time. More recently, the focus has shifted to what has been termed test fairness, with the focus falling more upon tests and their inadequacies than the behavior which underlies the tests. Similar findings and conclusions were frequently advanced in physiological tests of strength and endurance which are often used for civil service positions such as those in the fire fighting service and which frequently disadvantage women. The question raised is simply whether the discrimination is fair or not; that is, do given test score differences reflect variation in performance between groups which are reflective of true behavioral differences or are these differences artifactual and embedded in the assessment device itself, whether intentional or not. 2012 APA, all rights reserved)