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Zhang, Yanwei; Breithaupt, Krista; Tessema, Aster; Chuah, David – Online Submission, 2006
Two IRT-based procedures to estimate test reliability for a certification exam that used both adaptive (via a MST model) and non-adaptive design were considered in this study. Both procedures rely on calibrated item parameters to estimate error variance. In terms of score variance, one procedure (Method 1) uses the empirical ability distribution…
Descriptors: Individual Testing, Test Reliability, Programming, Error of Measurement
Li, Yuan H.; Yang, Yu N.; Tompkins, Leroy J.; Modarresi, Shahpar – Online Submission, 2005
The statistical technique, "Zero-One Linear Programming," that has successfully been used to create multiple tests with similar characteristics (e.g., item difficulties, test information and test specifications) in the area of educational measurement, was deemed to be a suitable method for creating multiple sets of matched samples to be…
Descriptors: Program Evaluation, Programming, Mathematical Applications, Measurement Techniques