title: Statistics commentary series: commentary #8-effect sizes.
authors.affiliation: From the Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton; and Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada.
authors.forename: David L
authors.initials: DL
authors.lastname: Streiner
mesh_terms: D000704:Analysis of Variance; D003627:Data Interpretation, Statistical; D006801:Humans; D018401:Sample Size; D013223:Statistics as Topic; D016896:Treatment Outcome