ERIC Number: EJ421108
Record Type: CIJE
Publication Date: 1990
Reference Count: 0
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)
Publication Type: Journal Articles; Opinion Papers; Reports - Research
Education Level: N/A
Authoring Institution: N/A