Investigated the effectiveness of H. Wainer's (1993) strategy for obtaining positively biased ability estimates when examinees can review and change answers on computerized adaptive tests. Results, based on simulation and testing data from 87 college students, show that the Wainer strategy sometimes yields inflated ability estimates and sometimes…

Compared results from computer-adaptive and self-adaptive tests under conditions in which item review was and was not permitted for 379 college students. Results suggest that, when given the opportunity, most examinees will change answers, but usually only to a small portion of items, resulting in some benefit to the test taker. (SLD)

Evaluated the effectiveness of vocabulary computerized adaptive tests (CATs) with restricted review in a live testing setting involving 242 college students in which special efforts were made to increase test efficiency and reduce the possibility of obtaining positively biased proficiency estimates. Results suggest the efficacy of allowing limited…

Studied effects of administration mode [computer adaptive test (CAT) versus self-adaptive test (SAT)], item-by-item answer feedback, and test anxiety on results from computerized vocabulary tests taken by 293 college students. CATs were more reliable than SATs, and administration time was less when feedback was provided. (SLD)

Examined the generalizability and validity and examinee perceptions of a computer-delivered version of 8 formulating-hypotheses tasks administered to 192 graduate students. Results support previous research that has suggested that formulating-hypotheses items can broaden the abilities measured by graduate admissions measures. (SLD)

Examined alternative-item types and section configurations for improving the discriminant and convergent validity of the Graduate Record Examination (GRE) general test using a computer-based test given to 388 examinees who had taken the GRE previously. Adding new variations of logical meaning appeared to decrease discriminant validity. (SLD)

Exploratory and confirmatory factor analyses were used to explore relationships among existing item types and three new computer-administered item types for the analytical scale of the Graduate Record Examination General Test. Results with 349 students indicate constructs the item types are measuring. (SLD)

Evaluated a computer-delivered response type for measuring quantitative skill, the "Generating Examples" (GE) response type, which presents under-determined problems that can have many right answers. Results from 257 graduate students and applicants indicate that GE scores are reasonably reliable, but only moderately related to Graduate…

Efficiency, precision, and concurrent validity of results from adaptive and fixed-item music listening tests were studied using: (1) 2,200 simulated examinees; (2) 204 live examinees; and (3) 172 live examinees. Results support the usefulness of adaptive tests for measuring skills that require aurally produced items. (SLD)

Equatings were performed on both simulated and real data sets using common-examinee design and two abilities for each examinee. Results indicate that effective equating, as measured by comparability of true scores, is possible with the techniques used in this study. However, the stability of the ability estimates proved unsatisfactory. (TJH)

Examinees in a regular administration of the quantitative portion of the Graduate Record Examination responded to particular items in a machine-scannable multiple-choice format. Volunteers (n=364) used a computer to answer open-ended counterparts of these items. Scores for both formats demonstrated similar correlational patterns. (SLD)

Performance of 156 undergraduate and 48 graduate students on a self-adapted test (SFAT)--students choose the difficulty level of their test items--was compared with performance on a computer-adapted test (CAT). Those taking the SFAT obtained higher ability scores and reported lower posttest state anxiety than did CAT takers. (SLD)

Detecting differential item functioning (DIF) on test items constructed to favor 1 group over another was investigated on parameter estimates from 2 item response theory-based computer programs--BILOG and LOGIST--using data for 1,000 White and 1,000 Black college students. Use of prior distributions and marginal-maximum a posteriori estimation is…