An Investigation of Possible Causes for the Inadequacy of IRT Pre-equating.

Autor/inn/en	Eignor, Daniel R.; Stocking, Martha L.
Institution	Educational Testing Service, Princeton, NJ.
Titel	An Investigation of Possible Causes for the Inadequacy of IRT Pre-equating.
Quelle	(1986), (55 Seiten) PDF als Volltext kostenfreie Datei Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Monographie
Schlagwörter	College Entrance Examinations; Equated Scores; Higher Education; Latent Trait Theory; Mathematical Models; Mathematics Tests; Measurement Techniques; Research Methodology; Scaling; Standardized Tests; Statistical Studies; Test Items; Test Theory; SAT (College Admission Test) + Suchen Sie Ihr Suchwort? Aufnahmeprüfung; Hochschulbildung; Hochschulsystem; Hochschulwesen; Latent-Trait-Modell; Mathematical model; Mathematisches Modell; Messtechnik; Research method; Forschungsmethode; Scale construction; Skalenkonstruktion; Standadised tests; Standardisierter Test; Test content; Testaufgabe; Testtheorie
Abstract	A previous study of pre-equating the Scholastic Aptitude Test (SAT) using item response theory provided unacceptable equating results for SAT-mathematical data. The purpose of this study was to investigate two possible explanations for these unacceptable pre-equating results. Specifically, the calibration process, which made use of the three-parameter model and LOGIST, and the linking procedure used to place parameter estimates on the same scale were further investigated in a two stage process to see if either was responsible for the poor IRT pre-equating results found for the SAT-mathematical data in the previous study. (Author)
Erfasst von	ERIC (Education Resources Information Center), Washington, DC