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Wang, Ning; Wiser, Randall F.; Newman, Larry S. – 1999
Job analysis has played a fundamental role in developing and validating licensure and certification examinations, but research on what constitutes reliable and valid job analysis data is lacking. This paper examines the reliability and validity of job analysis survey results. Generalizability theory and the multi-facet Rasch item response theory…
Descriptors: Generalizability Theory, Goodness of Fit, Item Response Theory, Job Analysis
Lee, Yong-Won; Kantor, Robert; Mollaun, Pam – 2002
This paper reports the results of generalizability theory (G) analyses done for new writing and speaking tasks for the Test of English as a Foreign Language (TOEFL). For writing, a special focus was placed on evaluating the impact on the reliability of the number of raters (or ratings) per essay (one or two) and the number of tasks (one, two, or…
Descriptors: English (Second Language), Generalizability Theory, Reliability, Scores