Subject: Re: Error Bars ( 95 % CI or SE) From: Stuart Rosen <s.rosen@xxxxxxxx> Date: Sun, 11 Dec 2011 08:22:34 +0000 List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>Let me put forward a dissenting opinion. What you should display in your graph is neither of these but a boxplot which will give a true picture of the distribution of values that you found rather than a statistical inference which depends as much on the number of participants you used as any difference in performance between the two groups. You are going to do a statistical test anyway (and you could quote an effect size) so why waste the opportunity to give more information? Yours - Stuart Rosen On 11/12/2011 01:18, Vijay M R Marimuthu wrote: > When we have a d' group result (between 2 experiments), > A. Which ERROR BAR is most appropriate to use (Binomial Distribution) ? > 95 % confidence Interval or Standard Errors of the Mean.