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Mikeska, Jamie N.; Kurzum, Christopher; Steinberg, Jonathan H.; Xu, Jun – ETS Research Report Series, 2018
The purpose of this report is to examine the performance of assessment items designed to measure elementary teachers' content knowledge for teaching (CKT) science as part of the ETS® Educator Series. The Elementary Education: CKT Science assessment is 1 component of licensure examination through the PRAXIS® assessments. The Elementary Education:…
Descriptors: Elementary School Teachers, Pedagogical Content Knowledge, Elementary School Science, Preservice Teachers
Sheehan, Kathleen; Mislevy, Robert J. – 1994
The operating characteristics of 114 mathematics pretest items from the Praxis I: Computer Based Test were analyzed in terms of item attributes and test developers' judgments of item difficulty. Item operating characteristics were defined as the difficulty, discrimination, and asymptote parameters of a three parameter logistic item response theory…
Descriptors: Basic Skills, Computer Assisted Testing, Difficulty Level, Educational Assessment