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ERIC Number: ED144979
Record Type: RIE
Publication Date: 1977-Apr
Pages: 25
Abstractor: N/A
Reference Count: 0
Methods for Maximizing the Validity of Experiments on Teaching.
Crawford, John; And Others
A number of potential threats to internal validity in true experiments are discussed. Programmatic research efforts proceeding from established correlational findings to experiments employing random assignment are described and used as referents in discussions of validity considerations. The collection of observational data is recommended for use in analyses of the degree of treatment implementation. The summary presents examples of the near-inevitable tradeoff between different types of validity (internal and external) in experiments on teaching. (Author)
Publication Type: Reports - Research
Education Level: N/A
Audience: N/A
Language: N/A
Sponsor: N/A
Authoring Institution: N/A
Note: Paper presented at the Annual Meeting of the American Educational Research Association (61st, New York, New York, April 4-8, 1977)