The statistical power of research designs in education
This article examines the mean statistical power of recent articles published in French Canadian scientific journals dedicated to research in education. 77 studies published in 4 different journals between 2004 and 2006 were analyzed with G*Power to establish their potential to detect small, medium, and large effects. Overall, results show that little progress has been made since the founding work of Cohen (1962) regarding statistical power in the field of educational research in the francophone scientific community. The author gives concrete actions for researchers to improve the statistical power of future work.