In other words, item maps indicate which questions a student at a given performance level on the NAEP scale is likely to answer correctly. The grade 8 item map is shown below. Position of questions is approximate and an appropriate scale range is displayed for grade 8. Italic type indicates a constructed-response question.
Regular type denotes a multiple-choice question.
Only selected questions are presented. Percentiles of scale score distribution are referenced on the map. Multiple-choice questions are shown on the item map in italics. The position of a constructed-response question on the item map represents the scale score attained by students who had at least a 65 percent probability of reaching a given score level on that question. The position of a multiple-choice question on the item map represents the scale score attained by students who had at least a 74 percent probability of correctly answering that question.