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A Review of Nonparametric Alternatives to Analysis of Covariance.

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Olejnik, Stephen F.; Algina, James – 1984

Five distribution-free alternatives to parametric analysis of covariance (ANCOVA) are presented and demonstrated using a specific data example. The procedures considered are those suggested by Quade (1967); Puri and Sen (1969); McSweeney and Porter (1971); Burnett and Barr (1978); and Shirley (1981). The results of simulation studies investigating…

Descriptors: Analysis of Covariance, Comparative Analysis, Hypothesis Testing, Mathematical Formulas

Some Important Changes in Educational Research Methods over the Past 20 Years.

Borg, Walter R. – 1984

By comparing the first and fourth editions of a research methods text, the author identifies and discusses some major changes in educational research metholodogy that have occurred over the past 20 years. Some of the changes relate to ethics and legal constraints in conducting research, research and development, evaluation research, the…

Descriptors: Classroom Observation Techniques, Educational Trends, Evaluation Methods, Legal Responsibility