Validating a Procedure for Assessing Bias in Test Items in the Absence of an Outside Criterion.

Autor/in	Scheuneman, Janice
Titel	Validating a Procedure for Assessing Bias in Test Items in the Absence of an Outside Criterion.
Quelle	(1976), (12 Seiten) PDF als Volltext kostenfreie Datei Verfügbarkeit
Dokumenttyp	gedruckt; online; Monographie
Schlagwörter	Evaluation Criteria; Item Analysis; Response Style (Tests); Statistical Analysis; Test Bias; Test Construction; Test Validity; Metropolitan Readiness Tests + Suchen Sie Ihr Suchwort? Itemanalyse; Antwortverhalten; Statistische Analyse; Testkritik; Testaufbau; Testvalidität
Abstract	Test bias has traditionally been defined in terms of an outside criterion measure of the performance being predicted by the test. In test construction, where criterion-related validity data are usually not collected until after the test is completed, assessment of bias in the absence of outside criteria had become a vital issue. Here, an unbiased test item is defined as one in which, for persons with the same ability in the areas being measured, the probability of a correct response on the item is the same regardless of the population group membership of the individual. The total score on a test or subtest containing the item can be used to define groups of persons having the same ability. Once the ability groups have been defined, a modified chi square procedure is used to evaluate each item in the test for possible bias. While hypotheses suggested by such an evaluation should be investigated further before making conclusive statements concerning the source of bias, results reported in this study support the validity of the method as a procedure for assessing bias when outside criterion measures are unavailable. (BW)
Erfasst von	ERIC (Education Resources Information Center), Washington, DC