Increasing Alpha Reliabilities of Multiple-Choice Tests with Linear Polychotomous Scoring
Kenneth S. Shultz · Psychological Reports · 1995
Little research has been conducted on the use of linear polychotomous scoring of multiple-choice test items. Therefore, several tests were analyzed using both dichotomous and polychotomous scoring of test items to assess how the alpha reliabilities of the tests change based on the type of scoring used. In each case, the alpha reliabilities of the tests increased, with the same or fewer number of items in each test, when polychotomous (vs dichotomous) scoring of multiple-choice test items was used.