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Download full textCharters, W. W., Jr. – 1992
The hypothesis is the device scientists use to translate questions, theories, or proposed explanations into a form amenable to empirical research. This edition of W. W. Charter's treatise on clear, conceptual definitions and precise operational hypotheses, which was originally developed to assist students in educational policy and management…
Descriptors: Classification, Educational Administration, Educational Research, Higher Education
Schmitt, Alicia P.; And Others – 1992
Studies evaluating hypotheses about sources of differential item functioning (DIF) are classified into two categories: observational studies evaluating operational items and randomized DIF studies evaluating specially constructed items. For observational studies, advice is given for item classification, sample selection, the matching criterion,…
Descriptors: Causal Models, Classification, Effect Size, Estimation (Mathematics)
