Date: Fri, 12 Aug 2005 09:51:28 -0600
Reply-To: Matthew Pirritano <firstname.lastname@example.org>
Sender: "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From: Matthew Pirritano <email@example.com>
Subject: effect size form F and df
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I want to calculate cohen's d from and F and df. Does anyone know how
to do this, or if it is possible?
I was thinking that I could just use this equation, since F is just t
squared. I could take the square root of the F and then run this
syntax. Does that make sense?
COMPUTE est_dbyt = (2 * t_value) / sqrt(df) .
Matthew Pirritano, Ph.D.
National Science Foundation Post-Doctoral Fellow
College of Education
Department of Individual, Family & Community Education
1 University of New Mexico
Albuquerque, NM 87131-0001