ERIC Number: EJ629708
Record Type: Journal
Publication Date: 2001
Reference Count: N/A
Do Item-Discrimination Indices Really Help Us To Improve Our Tests?
Burton, Richard F.
Assessment & Evaluation in Higher Education, v26 n3 p213-20 Jun 2001
Item-discrimination indices are numbers calculated from test data that are used in assessing the effectiveness of individual test questions. This article asserts that the indices are so unreliable as to suggest that countless good questions may have been discarded over the years. It considers how the indices, and hence overall test reliability, are affected by guessing and question complexity. (EV)
Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Authoring Institution: N/A