Peer reviewedERIC Number: EJ187962
Record Type: CIJE
Publication Date: 1978
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Abstractor: N/A
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Relative Costs and Statistical Power in the Extreme Groups Approach
Abrahams, Norman M.; Alf, Edward F., Jr.
Psychometrika, 43, 1, 11-7, Mar 78
The relationship between variables in applied and experimental research is often investigated by the use of extreme groups. Recent analytical work has provided an extreme group procedure that is more powerful than the standard correlational approach. The present article provides procedures to optimize power and thusly resources in such studies. (Author/JKS)
Descriptors: Correlation, Groups, Hypothesis Testing, Power (Statistics), Research Design, Testing Problems
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Language: English
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