This paper reports an investigation of inferencing in Form Five of the Reading Comprehension component of the Iowa Tests of Basic Skills. The first step in the investigation consisted of an analysis of the language of the test to determine how the inferencing strategies employed might serve to mask answers. This preliminary analysis suggested that…

Distractors, the incorrect responses to an item on a multiple-choice test, should be designed to create confusion in the minds of some students and to permit a competent student to be able to see that they are wrong. It is possible, by close scrutiny, to isolate the sources of this confusion and, by looking at a statistical analysis, to find out…