@article {2161, title = {A Comparison of Item Selection Techniques for Testlets}, journal = {Applied Psychological Measurement}, volume = {34}, number = {6}, year = {2010}, pages = {424-437}, abstract = {

This study examined the performance of the maximum Fisher\’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.

}, doi = {10.1177/0146621609349804}, url = {http://apm.sagepub.com/content/34/6/424.abstract}, author = {Murphy, Daniel L. and Dodd, Barbara G. and Vaughn, Brandon K.} }