Accession Number:

ADA058528

Title:

A Live Tailored Testing Comparison Study of the One- and Three-Parameter Logistic Models.

Descriptive Note:

Technical rept.,

Corporate Author:

MISSOURI UNIV-COLUMBIA TAILORED TESTING RESEARCH LAB

Personal Author(s):

Report Date:

1978-06-01

Pagination or Media Count:

51.0

Abstract:

Although both the one-parameter and the three-parameter logistic models have frequently been applied to computerized tailored tests, no direct empirical comparisons of the two models have been reported in the literature. The major research problem, therefore, was to compare the models based on a live tailored testing study conducted with two identical item pools derived from a vocabulary test. A total of 128 undergraduate and graduate students enrolled in educational psychology and measurement courses at the University of Missouri - Columbia served as examinees for the study. A counterbalanced test-retest design was employed in which there were two separate test sessions one week apart for each examinee, with both the one- and three-parameter tests administered at each session. The tailored tests were administered on Applied Digital Data Systems Consul 980 cathode ray tube terminals which were connected to an IBM 370168 computer through a timesharing system. Relative efficiency curves, test-retest reliability coefficients, goodness of fit of the models, convergence rates, descriptive statistics, and the correlation of ability estimates with an outside criterion were used to compare the two models.

Subject Categories:

  • Statistics and Probability
  • Test Facilities, Equipment and Methods

Distribution Statement:

APPROVED FOR PUBLIC RELEASE