Investigates the circumstances under which answer changing is beneficial or detrimental to test performance. Analyzes the success of answer changing in relation to the reasons offered for changing. Concludes that students who reported guessing as their reason for changing answers were not nearly as likely to benefit from changing as were students…

Instructions are provided on how to create and take computer aided admissible probability measurement (CAAPM) tests using programs available on PLATO IV. Admissible probability measurement is a testing procedure that permits a user to express a degree of uncertainty as to the correctness of alternative answers. Section II describes PLATO IV, an…

A student's choice of an answer to a test question is a coarse measure of his knowledge about the subject matter of the question. Much finer measurement might be achieved if the student were asked to estimate, for each possible answer, the probability that it is the correct one. Such a procedure could yield two classes of benefits: (a) students…