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Results of Item Parameter Estimation Using LOGIST 5 on Simulated Data.
Samejima, Fumiko – 1984
In order to evaluate our methods and approaches of estimating the operating characteristics of discrete item responses, it is necessary to try other comparable methods on similar sets of data. LOGIST 5 was taken up for this reason, and was tried upon the hypothetical test items, which follow the normal ogive model and were used frequently in…
Descriptors: Computer Simulation, Computer Software, Estimation (Mathematics), Item Analysis
Plausibility Functions of Iowa Vocabulary Test Items Estimated by the Simple Sum Procedure of the Conditional P.D.F. Approach.
Samejima, Fumiko – 1984
Simple sum procedure of the conditional PDF approach (plausiblity of distractor function) combined with the normal approach method was applied for estimating the plausibility functions of the distractors of the Level II vocabulary subtest items of the Iowa Tests of Basic Skills. In so doing, the normal ogive model was adopted for the correct…
Descriptors: Adaptive Testing, Elementary Secondary Education, Estimation (Mathematics), Item Analysis
Comparison of the Estimated Item Parameters of Shiba's Word/Phrase Comprehension Tests Obtained by Logist 5 and Those by the Tetrachoric Method.
Samejima, Fumiko – 1984
The use of a three-parameter logistic model for applying latent trait theory has become more popular because of the availability of computer programs. The program Logist 5 can be used not only for the item parameter estimation in the three-parameter logistic model, but also in the two parameter logistic model by setting the third parameter equal…
Descriptors: Correlation, Elementary Secondary Education, Equated Scores, Estimation (Mathematics)