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The Nature of Objectivity with the Rasch Model.
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Whitely, Susan E.; Dawis, Rene V. – 1973
Although it has been claimed that the Rasch model leads to a higher degree of objectivity in measurement than has been previously possible, this model has had little impact on test development. Population-invariant item and ability calibrations along with the statistical equivalency of any two item subsets are supposedly possible if the item pool…
Descriptors: Equivalency Tests, Item Analysis, Mathematical Models, Measurement Instruments
Bayesian Statistics, Credentialing Examinations, and the Determination of Passing Points.
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Schoon, Craig G.; And Others – Evaluation and the Health Professions, 1979
The Bayesian approach to setting passing points on credentialing examinations in the health fields is considered in the context of the Normal model, and examples are given to demonstrate the procedure. An application to a credentialing examination, to determine a rational passing point, is presented. (Author/MH)
Descriptors: Bayesian Statistics, Certification, Cutting Scores, Equivalency Tests
Comparison of Four Procedures for Equating the Tests of General Educational Development.
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Kolen, Michael J.; Whitney, Douglas R. – Journal of Educational Measurement, 1982
The adequacy of equipercentile, linear, one-parameter (Rasch), and three-parameter logistic item-response theory procedures for equating 12 forms of five tests of general educational development were compared. Results indicated the equating method adequacy depends on a variety of factors such as test characteristics, equating design, and sample…
Descriptors: Achievement Tests, Comparative Analysis, Equated Scores, Equivalency Tests
A Discussion and Comparison of Selected Methods for Determining Cutoff Scores for Proficiency and Placement Tests. Placement and Proficiency Testing Report No. 6.
Klein, Anna C.; Whitney, Douglas R. – 1977
Procedures and related issues involved in the application of trait-treatment interaction (TTI) to institutional research, in general, and to placement and proficiency testing, in particular, are discussed and illustrated. Traditional methods for choosing cut-off scores are compared and proposals for evaluating the results in the TTI framework are…
Descriptors: Aptitude Treatment Interaction, Cutting Scores, Decision Making, Equivalency Tests
An Approach to Measuring the Achievement or Proficiency of an Examinee.
Wilcox, Rand R. – 1979
Mastery tests are analyzed in terms of the number of skills to be mastered and the number of items per skill, in order that correct decisions of mastery or nonmastery will be made to a desired degree of probability. It is assumed that a random sample of skills will be selected for measurement, that each skill will be measured by the same number of…
Descriptors: Achievement Tests, Cutting Scores, Decision Making, Equivalency Tests
Issues in the Placement of Limited-English-Proficient Students and in the Evaluation of Their Instructional Programs.
DeMauro, Gerald E. – 1985
The Language Assessment Battery was administered to third to fifth grade limited English speaking students in New York City. Special techniques addressed two common problems in testing these populations: (1) language tests suitable for limited English speakers change their psychometric characteristics over time as the students' language ability…
Descriptors: Achievement Gains, Bilingual Education Programs, Cutting Scores, Elementary Education