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Peer reviewedMadison, Charles L.; Wong, Elizabeth Y. F. – Journal of Communication Disorders, 1992
This study, involving 20 children (ages 4-11) with severe hearing impairments, affirmed the content validity of the Clark-Madison Test of Oral Language as a measure of nonwritten expressive language with hearing-impaired children. Performance comparison with hearing individuals revealed a different profile of strengths and weaknesses than did…
Descriptors: Comparative Analysis, Content Validity, Deafness, Elementary Education
Download full textHambleton, Ronald K.; And Others – 1987
The study compared two promising item response theory (IRT) item-selection methods, optimal and content-optimal, with two non-IRT item selection methods, random and classical, for use in fixed-length certification exams. The four methods were used to construct 20-item exams from a pool of approximately 250 items taken from a 1985 certification…
Descriptors: Comparative Analysis, Content Validity, Cutting Scores, Difficulty Level
