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Malone, Margaret E.; Montee, Megan – ETS Research Report Series, 2014
The "TOEFL iBT"® test presents test takers with tasks meant to simulate the tasks required of students in English-medium universities. Research establishing the validity argument for the test provides evidence for score interpretation and the use of the test for university admissions and placement. Now that the test has been operational…
Descriptors: Stakeholders, Beliefs, Language Acquisition, Academic Ability
Tang, 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)
Way, Walter D.; Reese, Clyde M. – 1991
The use of two alternative item response theory (IRT) estimation models in the scaling and equating of the Test of English as a Foreign Language (TOEFL) was explored; and item scaling and test equating results based on these models were compared with results based on the three-parameter (3PL) model currently being used with the TOEFL. Models were…
Descriptors: Correlation, Equated Scores, Estimation (Mathematics), Goodness of Fit
Boldt, R. F. – 1994
The comparison of item response theory models for the Test of English as a Foreign Language (TOEFL) was extended to an equating context as simulation trials were used to "equate the test to itself." Equating sample data were generated from administration of identical item sets. Equatings that used procedures based on each model (simple…
Descriptors: Comparative Analysis, Cutting Scores, English (Second Language), Equated Scores
Way, Walter D.; McKinley, Robert L. – 1991
Two procedures were developed to determine whether examinees in a given test center were affected by a testing irregularity on the Listening Comprehension section of the Test of English as a Foreign Language (TOEFL). One approach employed analysis of covariance (ANCOVA) on Listening Comprehension (Section 1) means using scores on Structure and…
Descriptors: Analysis of Covariance, Bayesian Statistics, English (Second Language), Language Proficiency
Bejar, Isaac I. – 1985
The Test of English as a Foreign Language (TOEFL) was used in this study, which attempted to develop a new methodology for assessing the speededness of right-scored tests. Traditional procedures of assessing speededness have assumed that the test is scored under formula-scoring instructions; this approach is not always appropriate. In this study,…
Descriptors: College Entrance Examinations, English (Second Language), Estimation (Mathematics), Evaluation Methods
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
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Cohen, Andrew D.; Upton, Thomas A. – ETS Research Report Series, 2006
This study describes the reading and test-taking strategies that test takers used in the Reading section of the LanguEdge courseware (ETS, 2002a). These materials were developed to familiarize prospective respondents with the new TOEFL®. The investigation focused on strategies used to respond to more traditional single selection multiple-choice…
Descriptors: Reading Tests, Test Items, Courseware, Item Analysis
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von Davier, Matthias – ETS Research Report Series, 2005
Probabilistic models with more than one latent variable are designed to report profiles of skills or cognitive attributes. Testing programs want to offer additional information beyond what a single test score can provide using these skill profiles. Many recent approaches to skill profile models are limited to dichotomous data and have made use of…
Descriptors: Models, Diagnostic Tests, Language Tests, Language Proficiency