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Direct linkBowles, Ryan P.; Pentimonti, Jill M.; Gerde, Hope K.; Montroy, Janelle J. – Journal of Psychoeducational Assessment, 2014
Letter name knowledge in the preschool ages is a strong predictor of later reading ability, but little is known about the psychometric characteristics of uppercase and lowercase letters considered together. Data from 1,113 preschoolers from diverse backgrounds on both uppercase and lowercase letter name knowledge were analyzed using Item Response…
Descriptors: Item Response Theory, Preschool Children, Alphabets, Difficulty Level
Download full textBowles, Ryan P.; Pentimonti, Jill M.; Gerde, Hope K.; Montroy, Janelle J. – Grantee Submission, 2014
Letter name knowledge in the preschool ages is a strong predictor of later reading ability, but little is known about the psychometric characteristics of uppercase and lowercase letters considered together. Data from 1,113 preschoolers from diverse backgrounds on both uppercase and lowercase letter name knowledge were analyzed using Item Response…
Descriptors: Item Response Theory, Preschool Children, Alphabets, Difficulty Level
Culligan, Brent – Language Testing, 2015
This study compared three common vocabulary test formats, the Yes/No test, the Vocabulary Knowledge Scale (VKS), and the Vocabulary Levels Test (VLT), as measures of vocabulary difficulty. Vocabulary difficulty was defined as the item difficulty estimated through Item Response Theory (IRT) analysis. Three tests were given to 165 Japanese students,…
Descriptors: Language Tests, Test Format, Comparative Analysis, Vocabulary
Peer reviewedBennett, Randy Elliot; And Others – Journal of Educational Measurement, 1989
Causes of differential item difficulty for blind students taking the braille edition of the Scholastic Aptitude Test's mathematical section were studied. Data for 261 blind students were compared with data for 8,015 non-handicapped students. Results show an association between selected item categories and differential item functioning. (TJH)
Descriptors: Braille, College Entrance Examinations, Comparative Analysis, Difficulty Level
Sykes, Robert C.; Ito, Kyoko – 1995
Whether the presence of bidimensionality has any effect on the adaptive recalibration of test items was studied through live-data simulation of computer adaptive testing (CAT) forms. The source data were examinee responses to the 298 scored multiple choice items of a licensure examination in a health care profession. Three 75-item part-forms,…
Descriptors: Adaptive Testing, Computer Assisted Testing, Difficulty Level, Estimation (Mathematics)
Ward, William C.; And Others – 1986
The keylist format (rather than the conventional multiple-choice format) for item presentation provides a machine-scorable surrogate for a truly free-response test. In this format, the examinee is required to think of an answer, look it up in a long ordered list, and enter its number on an answer sheet. The introduction of keylist items into…
Descriptors: Analogy, Aptitude Tests, Construct Validity, Correlation
