Cohen's d

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Cohen’s d n.

Gerson D Cohen

Stephen D. Cohen

Michael D. Cohen

Jonathan D. Cohen

D.A. Cohen

Cohen's d n.


You Say You’ve OD’d on Leonard Cohen Canadian Jewish Writing and the Mainstream

Andrew D. Cohen and Ernesto Macaro: Language Learner Strategies: Thirty Years of Research and Practice.

Ronald D. Cohen. Depression Folk: Grassroots Music and Left-Wing Politics in 1930s America.

Reviews of Deadly Farce: Harvey Matusow and the Informer System in the McCarthy Era. By Robert M. Lichtman and Ronald D. Cohen.

Michael D. Cohen, James G. March, and Johan P. Olsen, “A Garbage Can Model of Organizational Choice”

Shaye J. D. Cohen. Why Aren't Jewish Women Circumcised? Gender and Covenant in Judaism. Berkeley and Los Angeles: University of California Press. 2005. Pp. xvii, 317. $39.95

Edward D. Berkowitz. Mr. Social Security: The Life of Wilbur J. Cohen. Foreword by Joseph A. Califano, Jr. Lawrence: University Press of Kansas. 1995. Pp. xx, 396. $34.95

Paul Erickson, Judy L. Klein, Lorraine Daston, Rebecca Lemov, Thomas Sturm, and Michael D. Gordin. How Reason Almost Lost Its Mind: The Strange Career of Cold War Rationality. Jamie Cohen-Cole. The Open Mind: Cold War Politics and the Sciences of Human Nature.

Lorenzo d'Alfonso, Yoram Cohen and Dietrich Sürenhagen (eds), The City of Emar among the Late Bronze Age Empires. History, Landscape, and Society: Proceedings of the Konstanz Emar Conference, 25.–26.04. 2006 (AOAT 349).

Ronald D. Cohen. Rainbow Quest: The Folk Music Revival and American Society, 1940–1970. Amherst: University of Massachusetts Press. 2002. Pp.xiii, 364. Cloth $70.00, paper $24.95

Robert M. Lichtman, Ronald D. Cohen. Deadly Farce: Harvey Matusow and the Informer System in the McCarthy Era. Urbana and Chicago: University of Illinois Press. 2004. Pp. viii, 227. $27.00


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A measure of effect size, the most familiar form being the difference between two means (M1 and M2) expressed in units of standard deviations: the formula is d = (M1M2)/σ, where σ is the pooled standard deviation of the scores in both groups. A value of d below 0.20 is considered small, 0.50 medium, and 0.80 large. [Named after the US psychologist Jacob (Jack) Cohen (1923–98) who devised it and popularized it in his book Statistical Power Analysis for the Behavioral Sciences (1969, 1988)]

Subjects: Psychology.

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