The effects of examiner unfamiliarity on the test performance of language handicapped and nonhandicapped preschoolers and school-age children are explored. Results indicate that examiner unfamiliarity selectively depresses handicapped children's test performance, constituting a systemic source of error and threatening the validity of handicapped…

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…

Based on data from 22 controlled studies, this article presents a meta-analysis of the effects of examiner familiarity on children's test performance. It was found that examiner familiarity raised scores especially when subjects were: (1) of low socioeconomic status; (2) tested on difficult tests; and (3) knew the examiner for a long duration.…

This article presents a quantitative synthesis of examiner familiarity effects on Caucasian and minority students' test performance. Fourteen controlled studies were coded in terms of methodological quality (high vs. low) and race-ethnicity (Caucasian vs. Black and Hispanic). An analogue to analysis of variance conducted on weighted unbiased…