Re: Effect size of binomial test

[Karl L. Wuensch]

Title: [edstat] Effect size of binomial test

I would think that reporting the difference betweent the observed proportion and that expected under the null would be sufficient, but it might also be nice to report a confidence interval for the proportion. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Karl L. Wuensch, Department of Psychology, East Carolina University, Greenville NC  27858-4353 Voice:  252-328-4102     Fax:  252-328-6283 [EMAIL PROTECTED] http://core.ecu.edu/psyc/wuenschk/klw.htm ----- Original Message ----- From: RichardM To: [EMAIL PROTECTED] Sent: Monday, March 15, 2004 9:51 AM Subject: [edstat] Effect size of binomial test I am doing binomial tests and reporting probabilities and I need to find an effect size measure that would allow one to assess the strength of the relationship.  I know many people present z but since the probabilities have not been estimated using an approximation of the normal distribution, I thought it would be misleading to present the value of z along with a probability computed using the binomial distribution. Any suggestion? Richard