01176nas a2200145   4500008003900000245005900039210005700098300001200155490000700167520073700174100002200911700002100933700002300954856005300977       2010                          d00aA Comparison of Item Selection Techniques for Testlets0 aComparison of Item Selection Techniques for Testlets  a424-4370 v343 a<p>This study examined the performance of the maximum Fisher&rsquo;s information, the maximum posterior weighted information, and the minimum expected posterior variance methods for selecting items in a computerized adaptive testing system when the items were grouped in testlets. A simulation study compared the efficiency of ability estimation among the item selection techniques under varying conditions of local-item dependency when the response model was either the three-parameter-logistic item response theory or the three-parameter-logistic testlet response theory. The item selection techniques performed similarly within any particular condition, the practical implications of which are discussed within the article.</p>
1 aMurphy, Daniel, L1 aDodd, Barbara, G1 aVaughn, Brandon, K  uhttp://apm.sagepub.com/content/34/6/424.abstract