The use of multiple regression as a data-analytic tool is examined for the cases of balanced and unbalanced designs. The utility of this method for testing specific contrasts, both orthogonal and nonorthogonal is discussed and some interpretive cautions are examined. (Author)

This notebook contains 21 standards established by the Center for Educational Statistics (CES); CES legislation; and a description of the CES publication and publication review processes. The publication clearance procedures and the external advice and peer review policies are established by the Office of Educational Research and Improvement…

Presented as a mini-course on the design of classroom observation systems, this report stresses the necessity of determining the goals of any study before designing the procedures. Only if the researcher has concretely formulated the questions to be answered, can an observation system be developed that will provide the appropriate data. The…