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Kang, Taehoon; Chen, Troy T. – Asia Pacific Education Review, 2011
The utility of Orlando and Thissen's ("2000", "2003") S-X[squared] fit index was extended to the model-fit analysis of the graded response model (GRM). The performance of a modified S-X[squared] in assessing item-fit of the GRM was investigated in light of empirical Type I error rates and power with a simulation study having…
Descriptors: Simulation, Item Response Theory, Models, Testing
Nelson, Richard C.; Frey, David H. – Elem Sch Guidance Counseling, 1969
Descriptors: Conceptual Schemes, Counselor Role, Data Collection, Elementary Education
Kolakowski, Donald – 1972
Empirical results are presented as regards the implementation of a latent-trait psychometric model by means of conditional maximum likelihood estimation. Items are scored polychotomously into varying numbers of nominal categories and the test and item characteristic curves and information functions are examined. It is concluded that scoring items…
Descriptors: Error of Measurement, Item Analysis, Item Sampling, Measurement Techniques
Hansen, Duncan N.; And Others – 1971
A review of the literature on automated psychological testing shows that most research and development in this area is based on a one-test, one-psychologist model. In this model, the functions of test administration, scoring, and interpretation are thought out in terms of specific tests presented on an individualized basis. However, more complete…
Descriptors: Automation, Computer Oriented Programs, Computers, Educational Testing