01640nas a2200157   4500008003900000245007600039210006900115300001200184490000700196520114800203100002301351700001801374700001601392700002101408856005301429       2013                          d00aA Comparison of Exposure Control Procedures in CATs Using the 3PL Model0 aComparison of Exposure Control Procedures in CATs Using the 3PL   a857-8740 v733 a<p>This study compares the progressive-restricted standard error (PR-SE) exposure control procedure to three commonly used procedures in computerized adaptive testing, the randomesque, Sympson&ndash;Hetter (SH), and no exposure control methods. The performance of these four procedures is evaluated using the three-parameter logistic model under the manipulated conditions of item pool size (small vs. large) and stopping rules (fixed-length vs. variable-length). PR-SE provides the advantage of similar constraints to SH, without the need for a preceding simulation study to execute it. Overall for the large and small item banks, the PR-SE method administered almost all of the items from the item pool, whereas the other procedures administered about 52% or less of the large item bank and 80% or less of the small item bank. The PR-SE yielded the smallest amount of item overlap between tests across conditions and administered fewer items on average than SH. PR-SE obtained these results with similar, and acceptable, measurement precision compared to the other exposure control procedures while vastly improving on item pool usage.</p>
1 aLeroux, Audrey, J.1 aLopez, Myriam1 aHembry, Ian1 aDodd, Barbara, G  uhttp://epm.sagepub.com/content/73/5/857.abstract