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In psychometrics, item response theory (IRT, also known as latent trait theory, strong true score theory, or modern mental test theory) is a paradigm for the design, analysis, and scoring of tests, questionnaires, and similar instruments measuring abilities, attitudes, or other variables.
TAP (Test Analysis Program) is a free Windows program written in Delphi Pascal that performs test and item analyses based on classical test theory. TAP provides reports on examinee total scores, item statistics (e.g., item difficulty, item discrimination, point-biserial), options analyses, and other useful information.
The structure of the tests was based on the Iowa Tests of Educational Development (ITED) created by the University of Iowa College of Education in 1942 for use in Iowa, and comprised 20–40 minute timed sub-tests in five categories: English Usage, Mathematics Usage, Natural Sciences Reading, Social Studies Reading, and Word Usage.
In 1993, Paticia Zebrowski, University of Iowa assistant professor of speech pathology and audiology said that the data that resulted from the experiment is the "largest collection of scientific information" on the phenomenon of stuttering and that Johnson's work was the first to discuss the importance of the stutterer's thoughts, attitudes ...
The Iowa Tests of Educational Development (ITED) are a set of standardized tests given annually to high school students in many schools in the United States, covering Grades 9 to 12. The tests were created by the University of Iowa 's College of Education in 1942, as part of a program to develop a series of nationally accepted standardized ...
In practical test construction, item analysis is an iterative process, and cannot be entirely automated. The psychometrician's judgement is required to determine whether the emerging set of items to be retained constitutes a satisfactory test of the target construct. [citation needed] The three criteria above do not always agree, and a balance ...
The Iowa Assessments (previously the Iowa Test of Basic Skills and originally Iowa Every Pupil Test of Basic Skills) also known informally as the Iowa Tests, formerly known as the ITBS tests or the Iowa Basics, are standardized tests provided as a service to schools by the College of Education of the University of Iowa.
The Cognitive Abilities Test (CogAT) is a group-administered K–12 assessment published by Riverside Insights and intended to estimate students' learned reasoning and problem solving abilities through a battery of verbal, quantitative, and nonverbal test items. The test purports to assess students' acquired reasoning abilities while also ...