Complex multiple choice (CMC) items are frequently used to test knowledge about repetitive information. In two independent comparisons, performance on the CMC items surpassed that of the multiple true-false clusters. Data indicate that performance on CMC items is inflated, and distractors on CMC items fail to prevent guessing. (Author/PN)

The effect on examinee performance of the rule that multiple-choice (MC) test items require the acceptance of 1 choice was examined for 106 dental students presented with choices in MC and multiple true-false formats. MC items force examinees to select one choice, which causes artificial acceptance of correct/incorrect choices. (SLD)