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Download full textTang, K. Linda; And Others – 1993
This study compared the performance of the LOGIST and BILOG computer programs on item response theory (IRT) based scaling and equating for the Test of English as a Foreign Language (TOEFL) using real and simulated data and two calibration structures. Applications of IRT for the TOEFL program are based on the three-parameter logistic (3PL) model.…
Descriptors: Comparative Analysis, Computer Simulation, Equated Scores, Estimation (Mathematics)
Hicks, Marilyn M. – 1989
Methods of computerized adaptive testing using conventional scoring methods in order to develop a computerized placement test for the Test of English as a Foreign Language (TOEFL) were studied. As a consequence of simulation studies during the first phase of the study, the multilevel testing paradigm was adopted to produce three test levels…
Descriptors: Adaptive Testing, Adults, Algorithms, Computer Assisted Testing
