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Samejima, Fumiko

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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

Effect of the Guessing Parameter on the Estimation of the Item Discrimination and Difficulty Parameters When Three-Parameter Logistic Model Is Assumed.

Samejima, Fumiko – 1986

Item analysis data fitting the normal ogive model were simulated in order to investigate the problems encountered when applying the three-parameter logistic model. Binary item tests containing 10 and 35 items were created, and Monte Carlo methods simulated the responses of 2,000 and 500 examinees. Item parameters were obtained using Logist 5.…

Descriptors: Computer Simulation, Difficulty Level, Guessing (Tests), Item Analysis