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ERIC Number: ED064361
Record Type: RIE
Publication Date: 1972-Apr
Pages: 5
Abstractor: N/A
Reference Count: 0
Comparative Reliabilities of the Multiple Choice and True-False Formats.
Oosterhof, Albert C.; Glasnapp, Douglas R.
The present study was concerned with several currently unanswered questions, two of which are: what is an empirically determined ratio of multiple choice to equivalent true-false items which can be answered in a given amount of time?; and for achievement test items administered within a classroom situation, which of the two formats under consideration result in greater reliability per unit of testing time? Subjects were 101 undergraduates enrolled in one section of an introductory measurements course. Forty multiple choice items were selected on the basis of their relationship to stated course objectives and according to their ability to discriminate between levels of achievement. Data from this research indicate that true-false items, particularly those items which are in fact true, result in a less reliable test than had a four-option multiple choice format been used. It also appears that when the correction for guessing formula is applied in order to equalize scores relative to items correctly answered on a pure chance basis, the multiple choice item is the easier of the two formats to answer, with items keyed true easier than those keyed false with regard to the true-false format. (Author/LS)
Publication Type: N/A
Education Level: N/A
Audience: N/A
Language: N/A
Sponsor: N/A
Authoring Institution: N/A
Note: Paper presented at the Annual Meeting of the American Educational Research Association (Chicago, Illinois, April 1972)