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Peer reviewed Peer reviewed
ERIC Number: EJ393079
Record Type: CIJE
Publication Date: 1989
Pages: N/A
Abstractor: N/A
Reference Count: 0
ISBN: N/A
ISSN: N/A
Examining the Stability of Angoff's Delta Item Bias Statistic Using the Bootstrap.
Harris, Deborah J.; Kolen, Michael J.
Educational and Psychological Measurement, v49 n1 p81-87 Spr 1989
With bootstrap methodology, the stability of the Angoff delta item bias index was investigated. Data from item responses of 400 Black and 400 White fifth-grade students taking the Iowa Tests of Basic Skills indicated that the Angoff delta statistic had only moderate stability. (SLD)
Descriptors: Black Students, Elementary Education, Elementary School Students, Estimation (Mathematics), Grade 5, Item Analysis, Language Usage, Responses, Statistical Analysis, Test Bias, Test Items, Vocabulary Skills, White Students
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers: Angoff Methods; Bootstrap Hypothesis; Item Bias Statistic; Stability (Statistics)