Reduction of Error by Matching Subjects in the Two-Group Experimental Design.

Swank, Paul; Schmid, John

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Peer reviewed

ERIC Number: EJ205762

Record Type: CIJE

Publication Date: 1978

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Reduction of Error by Matching Subjects in the Two-Group Experimental Design.

Swank, Paul; Schmid, John

Journal of Experimental Education, v47 n1 p35-36 Fall 1978

McNemar's discussion of error reduction in a mixed two-group design fails to provide an algebraic presentation of this error reduction. This paper presents not only the algebraic development of the error term but shows that under certain conditions mixing may increase experimental error. (Author)

Descriptors: Error of Measurement, Experimental Groups, Matched Groups, Mathematical Formulas, Research Design

Publication Type: Journal Articles; Reports - Research

Education Level: N/A

Audience: N/A

Language: English

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