On the Relative Value of Multiple-Choice, Constructed Response, and Examinee-Selected Items on Two Achievement Tests

Using analyses based on fitting item response models to data from the College Board's Advanced Placement exams in chemistry and United States history, we found that the constructed response portion of the tests yielded little information over and above that provided by the multiple-choice sections. These tests also allow examinees to select subsets of the constructed response items; we found that scoring on the basis of the selections themselves provided almost as much information as did scoring on the basis of the answers