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Use of Three-Parameter Item Response Theory in the Development of CTBS, Form U, and TCS.
Yen, Wendy M. – 1982
The three-parameter logistic model discussed was used by CTB/McGraw-Hill in the development of the Comprehensive Tests of Basic Skills, Form U (CTBS/U) and the Test of Cognitive Skills (TCS), published in the fall of 1981. The development, standardization, and scoring of the tests are described, particularly as these procedures were influenced by…
Descriptors: Achievement Tests, Bayesian Statistics, Cognitive Processes, Data Collection