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Ability Estimation and Item Calibration Using the One and Three Parameter Logistic Models: A Comparative Study. Research Report 77-1.

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Reckase, Mark D. – 1977

Latent trait model calibration procedures were used on data obtained from a group testing program. The one-parameter model of Wright and Panchapakesan and the three-parameter logistic model of Wingersky, Wood, and Lord were selected for comparison. These models and their corresponding estimation procedures were compared, using actual and simulated…

Descriptors: Achievement Tests, Adaptive Testing, Aptitude Tests, Comparative Analysis

Evaluations of Implied Orders as a Basis for Tailored Testing Using Simulations. Technical Report No. 4.

Cliff, Norman; And Others – 1977

TAILOR is a computer program that uses the implied orders concept as the basis for computerized adaptive testing. The basic characteristics of TAILOR, which does not involve pretesting, are reviewed here and two studies of it are reported. One is a Monte Carlo simulation based on the four-parameter Birnbaum model and the other uses a matrix of…

Descriptors: Adaptive Testing, Computer Assisted Testing, Computer Programs, Difficulty Level