01777nas a2200145   4500008003900000245005500039210005400094300001300148490000700161520135000168100001901518700002601537700002301563856004501586       2019                          d00aDeveloping Multistage Tests Using D-Scoring Method0 aDeveloping Multistage Tests Using DScoring Method  a988-10080 v793 aThe D-scoring method for scoring and equating tests with binary items proposed by Dimitrov offers some of the advantages of item response theory, such as item-level difficulty information and score computation that reflects the item difficulties, while retaining the merits of classical test theory such as the simplicity of number correct score computation and relaxed requirements for model sample sizes. Because of its unique combination of those merits, the D-scoring method has seen quick adoption in the educational and psychological measurement field. Because item-level difficulty information is available with the D-scoring method and item difficulties are reflected in test scores, it conceptually makes sense to use the D-scoring method with adaptive test designs such as multistage testing (MST). In this study, we developed and compared several versions of the MST mechanism using the D-scoring approach and also proposed and implemented a new framework for conducting MST simulation under the D-scoring method. Our findings suggest that the score recovery performance under MST with D-scoring was promising, as it retained score comparability across different MST paths. We found that MST using the D-scoring method can achieve improvements in measurement precision and efficiency over linear-based tests that use D-scoring method.1 aHan, Kyung, T.1 aDimitrov, Dimiter, M.1 aAl-Mashary, Faisal  uhttps://doi.org/10.1177/0013164419841428