Relabeling Internal and External Validity for Applied Social Scientists.

Campbell, Donald T.

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Peer reviewed

ERIC Number: EJ343208

Record Type: Journal

Publication Date: 1986

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Relabeling Internal and External Validity for Applied Social Scientists.

Campbell, Donald T.

New Directions for Program Evaluation, n31 p67-77 Fall 1986

Confusion about the meaning of validity in quasi-experimental research can be addressed by carefully relabeling types of validity. Internal validity can more aptly be termed "local molar causal validity." More tentatively, the "principle of proximal similarity" can be substituted for the concept of external validity. (Author)

Descriptors: Definitions, Quasiexperimental Design, Sampling, Social Science Research, Social Scientists, Statistical Analysis, Validity

Publication Type: Journal Articles; Reports - Evaluative

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Language: English

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