Group Matching: Is This a Research Technique to Be Avoided?.

Ross, Donald C.; Klein, Donald F.

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Peer reviewed

ERIC Number: EJ375708

Record Type: Journal

Publication Date: 1988

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Group Matching: Is This a Research Technique to Be Avoided?

Ross, Donald C.; Klein, Donald F.

Educational and Psychological Measurement, v48 n2 p281-95 Sum 1988

The variance of the sample difference and the power of the "F" test for mean differences were studied under group matching on covariates and also under random assignment. Results shed light on systematic assignment procedures advocated to provide more precise estimates of treatment effects than simple random assignment. (TJH)

Descriptors: Analysis of Covariance, Analysis of Variance, Monte Carlo Methods, Outcomes of Treatment, Research Methodology, Sampling

Publication Type: Journal Articles; Reports - Research

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Language: English

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