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Direct linkChiu, Chia-Yi; Köhn, Hans-Friedrich; Wu, Huey-Min – International Journal of Testing, 2016
The Reduced Reparameterized Unified Model (Reduced RUM) is a diagnostic classification model for educational assessment that has received considerable attention among psychometricians. However, the computational options for researchers and practitioners who wish to use the Reduced RUM in their work, but do not feel comfortable writing their own…
Descriptors: Educational Diagnosis, Classification, Models, Educational Assessment
Download full textMislevy, Robert J.; Stocking, Martha L. – 1987
Since its release in 1976, LOGIST has been the most widely used computer program for estimating the parameters of the three-parameter logistic item response model developed by A. Birnbaum. An alternative program, BILOG, developed by R. J. Mislevy and R. D. Bock (1983), has recently become available. This paper compares the approaches taken by the…
Descriptors: Bayesian Statistics, Comparative Analysis, Computer Software, Estimation (Mathematics)
Wolfle, Lee M. – 1981
Whenever one uses ordinary least squares regression, one is making an implicit assumption that all of the independent variables have been measured without error. Such an assumption is obviously unrealistic for most social data. One approach for estimating such regression models is to measure implied coefficients between latent variables for which…
Descriptors: Computer Programs, Factor Analysis, Least Squares Statistics, Mathematical Models
Peer reviewedGustafsson, Jan-Eric – Educational and Psychological Measurement, 1980
The statistically correct conditional maximum likelihood (CML) estimation method has not been used because of numerical problems. A solution is presented which allows a rapid computation of the CML esitmates also for long tests. CML has decisive advantages in the construction of statistical tests of goodness of fit. (Author/CP)
Descriptors: Goodness of Fit, Item Analysis, Latent Trait Theory, Mathematical Formulas
Choppin, Bruce – 1982
A strategy for overcoming problems with the Rasch model's inability to handle missing data involves a pairwise algorithm which manipulates the data matrix to separate out the information needed for the estimation of item difficulty parameters in a test. The method of estimation compares two or three items at a time, separating out the ability…
Descriptors: Difficulty Level, Estimation (Mathematics), Goodness of Fit, Item Analysis
Bemak, Fred; Keys, Susan – 2000
Violence is one of the most complex and difficult student problems in public education. It interferes with students' academic performance, career options, and personal and social growth, and threatens the safety of students and faculty. Most professionals who work in schools are not trained to deal with violence. At the same time, incidents of…
Descriptors: Administrators, Adolescent Development, Affective Measures, Aggression
