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Statistics Commentary Series: Commentary #9—Sample Size Made Easy (Power a Bit Less So)

Streiner, David L. PhD, CPsych

Journal of Clinical Psychopharmacology: August 2015 - Volume 35 - Issue 4 - p 364–366
doi: 10.1097/JCP.0000000000000297

From the Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton; and Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada.

Reprints: David L. Streiner, PhD, CPsych, St Joseph’s Healthcare, Mountain Campus, 100 W 5th St, Hamilton, Ontario, Canada L8N 3K7 (e-mail:

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