This article introduces practitioners and researchers to the topic of missing data in the context of differential item functioning (DIF), reviews the current literature on the issue, discusses implications of the review, and offers suggestions for future research. A total of nine studies were reviewed. All of these studies determined what effect…

Court cases are presented that illustrate some of the issues that courts have dealt with in the area of educational testing. While this study was developed primarily for parents, the booklet should also help school administrators and testing professionals learn about court cases and precedents relevant to some major issues in educational testing.…

This study used meta-analysis research techniques to determine if there are differences in General Aptitude Test Battery (GATB) validities and test scores between males and females. The sample consisted of 26,111 subjects from 122 Specific Aptitude Test Battery (SATB) validation or revalidation studies analyzed since 1972. Four approaches were…

This study evaluated the Bielefeld Developmental Test for Blind Infants and Preschoolers by comparing cognitive performance of blind and sighted children (ages three and four). Results indicated that even this test (with "blind-neutral" items) did not permit a fair comparative assessment, though it did prove suitable for within-group…

The Comprehensive Tests of Basic Skills, Form U, is scored in two ways: number-correct and pattern. The latter makes use of the information about which particular items are answered correctly, giving more weight to the more discriminating items and making allowances for guessing. Critics have suggested that black students are penalized by pattern…

Reviews the evaluation by the National Academy of Science (NAS) of the General Aptitude Test Battery (GATB), which was developed to predict the job performance of potential employees. Proposes that the NAS recommendation to correct the GATB's racial bias by "race-norming" was a political decision and not scientifically justified. (FMW)

A culture-specific approach to identifying artistic talent in African-American students is presented, called Tactuality. Tactuality identifies four characteristics: emotional intensity, flexibility and open-endedness, holistic perception, and tactile sensitivity. A pilot test with 63 fourth graders resulted in statistical problems with validation.…

Differential item performance (DIP) is discussed as a concept that does not necessarily imply item bias or unfairness to subgroups of examinees. With curriculum-based achievement tests, DIP is presented as a valid reflection of group differences in requisite skills and instruction. Using data from a national testing of the ACT Assessment, this…

A technique for detecting item bias that is responsive to attitudinal measurement considerations is a maximum likelihood factor analysis procedure comparing multivariate factor structures across various subpopulations, often referred to as SIFASP. The SIFASP technique allows for factorial model comparisons in the testing of various hypotheses…

Prior research indicates that language-handicapped children obtain higher test scores when tested by personally familiar examiners than when tested by personally unfamiliar examiners. The present investigation inquired whether this finding is due to examinees' actual differential performance across the two examiner conditions, or whether it is the…

This study examines item bias on Forms L and M of the Peabody Picture Vocabulary Test-Revised (PPVT-R) for 132 Anglo-American and Mexican-American children in grades one through four. Analyses of variance were employed to assess item bias as defined by items x ethnicity interactions. Follow-up analyses were performed using a Bonferroni-type…

The study investigated cultural bias in the verbal items of the Wechsler Intelligence Scale for Children-Revised (WISC-R). Six verbal subtests of the WISC-R were administered to 40 Anglo, 40 Mexican-American, and 40 Navajo intermediate grade students matched for grade level, sex, and socioeconomic status. The responses of three groups of subjects…

This article presents a meta-analysis of the effects of examiner familiarity/unfamiliarity on children's performance during individual testing. Data came from 22 controlled studies involving 1489 subjects. In a typical study, the effect of examiner familiarity raised test performance by .35 standard deviations. Differential performance favoring…

To show the difficulty of eliminating test bias and to develop a methodology for distinguishing between the effects of prior knowledge and of skill development on reading comprehension, 207 eighth grade students from rural and urban areas were administered an 18-question reading comprehension test. Quantitative and qualitative effects of prior…

Efforts to study the fidelity of translation of attitudinal scales into foreign languages have faltered due to the lack of powerful statistical tests to assess such transformations. This study uses a maximum likelihood factor analysis procedure to compare multivariate factor structures across subpopulations. The results showed that inconsistent…