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Control Groups	2
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Administrative Policy	1
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Newman, Isadore	1
Roberts, Karlene H.	1
Williams, John D.	1

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Using Linear Models to Simultaneously Analyze a Solomon Four Group Design.

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Williams, John D.; Newman, Isadore – 1982

Problems associated with the analysis of data collected using the Solomon Four Group Design are discussed. The design includes an experimental group and a control group that have been pretested and posttested, and an experimental and a control group that have been posttested only. A sample problem is approached in three different ways. First, the…

Descriptors: Control Groups, Experimental Groups, Hypothesis Testing, Mathematical Models

Understanding Research: Some Thoughts on Evaluating Completed Educational Projects. An Occasional Paper from ERIC at Stanford.

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Roberts, Karlene H. – 1969

In order to make policy decisions, educators must evaluate educational research proposals and projects. Findings immediately related to practice are often inadequate, omitting the theoretical establishment of principles by which we can explain and predict the phenomena of our world. These theoretical linkages to the practical world of…

Descriptors: Administrative Policy, Control Groups, Data Analysis, Decision Making Skills