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Peer reviewedLuftig, Jeffrey T.; Norton, Willis P. – Journal of Studies in Technical Careers, 1982
This article builds on an earlier discussion of the importance of the Type II error (beta) and power to the hypothesis testing process (CE 511 484), and illustrates the methods by which sample size calculations should be employed so as to improve the research process. (Author/CT)
Descriptors: Hypothesis Testing, Research Design, Research Methodology, Research Problems
Peer reviewedPassmore, David Lynn – Journal of Studies in Technical Careers, 1983
Vocational and technical education researchers need to be aware of the uses and limits of various statistical models. The author reviews the Rasch Model and applies it to results from a nutrition test given to student nurses. (Author)
Descriptors: Educational Research, Item Sampling, Nursing Education, Nutrition
