ERIC Number: ED393936
Record Type: Non-Journal
Publication Date: 1995-Aug
Reference Count: N/A
The Introduction and Comparability of the Computer Adaptive GRE General Test. GRE Board Professional Report No. 88-08aP.
Schaeffer, Gary A.; And Others
This report summarizes the results from two studies. The first assessed the comparability of scores derived from linear computer-based (CBT) and computer adaptive (CAT) versions of the three Graduate Record Examinations (GRE) General Test measures. A verbal CAT was taken by 1,507, a quantitative CAT by 1,354, and an analytical CAT by 995 examinees. The verbal and quantitative CATs were found to produce scores that were comparable to their CBT counterparts. However, the analytical CAT produced scores that were judged not to be comparable to the analytical CBT scores. A second study then examined the analytical measure to ascertain the extent of lack of comparability and to obtain statistics that would permit adjustments to restore comparability. Results indicated that the differences in analytical CAT and CBT scores due to the testing paradigm were large enough to require an adjustment in scores. Therefore, in order to enhance the comparability of analytical CAT and CBT scores, the analytical CAT was equated to the analytical CBT. This equating provided new analytical CAT conversions that resulted in comparable analytical CAT and CBT scores. Appendix A explains CBT testing to examinees, and Appendix B presents the CBT program questionnaire. (Contains 10 figures, 20 tables, and 5 references.) (Author/SLD)
Publication Type: Reports - Evaluative
Education Level: N/A
Sponsor: Graduate Record Examinations Board, Princeton, NJ.
Authoring Institution: Educational Testing Service, Princeton, NJ.
Identifiers - Assessments and Surveys: Graduate Record Examinations