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ERIC Number: ED127529
Record Type: RIE
Publication Date: 1976-Apr
Misinformation, Reliability and Item Discrimination Indices on Multiple Choice Tests.
Frary, Robert B.; Lowry, Stephen R.
This paper presents theory concerning the relationships between reliability, misinformation and item discrimination coefficients. It is shown that, to the extent that misinformation rather than ignorance causes examinees to miss multiple-choice items, higher item discrimination coefficients and lower difficulty indices may be expected. Data were collected which partially confirmed the prevalence of these outcomes in typical college classroom testing situations involving six tests and 210 examinees. The implications of the findings are discussed with respect to commonly used test construction procedures. Specifically, a caution is voiced concerning possible biasing of tests to penalize misinformation more than ignorance when this approach is inappropriate. (Author)
Publication Type: Reports - Research
Education Level: N/A
Authoring Institution: N/A
Note: Paper presented at the Annual Meeting of the American Educational Research Association (San Francisco, California, April 19-23, 1976); not available in hard copy due to marginal legibility of original document