Statistical Power of Psychological Research: What Have We Gained in 20 Years?.

Rossi, Joseph S.

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Peer reviewed

ERIC Number: EJ421108

Record Type: CIJE

Publication Date: 1990

Pages: N/A

Abstractor: N/A

ISBN: N/A

ISSN: ISSN-0022-006X

EISSN: N/A

Statistical Power of Psychological Research: What Have We Gained in 20 Years?

Rossi, Joseph S.

Journal of Consulting and Clinical Psychology, v58 n5 p646-56 Oct 1990

Calculated power for 6,155 statistical tests in 221 journal articles published in 1982 volumes of "Journal of Abnormal Psychology,""Journal of Consulting and Clinical Psychology," and "Journal of Personality and Social Psychology." Power to detect small, medium, and large effects was .17, .57, and .83, respectively. Concluded that power of psychological research is still low. (Author/NB)

Descriptors: Data Interpretation, Power (Statistics), Psychology, Social Science Research, Statistical Analysis

Publication Type: Journal Articles; Opinion Papers; Reports - Research

Education Level: N/A

Audience: N/A

Language: English

Sponsor: N/A

Authoring Institution: N/A

Grant or Contract Numbers: N/A

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