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Evaluating Student Multiple-Choice ResponsesEffects of Coded and Free FormatsFaculty of Medicine University of Calgary
Faculty of Medicine University of Calgary
Faculty of Medicine University of Calgary The effects of coded (type K) and free (type X) formats on student responses to identical multiple-choice items were com pared. Two subtests (A and B) each of 20 multiple-response items were emplo ved The items of the two subtests were placed in both K and X response formats pro ducing two examinations (i.e., exam I subtest A in type K format and subtest B in type X format; exam II. subtest A in type X format and subtest B in type K format) which were randomly distributed to 155 premedical students enrolled in an advanced human physiology course. Analyses of student performance led to four observanons. (1) the type K items significantly elevated student achievement scores due to a cueing effect inherent in the format, (2) the "poorer" students' scores were elevated more than the "better" students' scores, as evidence by a signifi cant negative relationship between the degree of cueing and examinee perfor mance; (3) the item format and scoring system (dichotomous or semicontinuous scales) affected the mean and variance of examinee scores; (4) the reliability (alpha coefficient) of items in the type X format tended to be statistically higher than that of items in the type K format. It was con cluded that an examination constructed in the type X format is a superior evalua tion instrument when compared to its parallel type K format
Evaluation & the Health Professions, Vol. 3, No. 1,
63-84 (1980) This article has been cited by other articles:
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