Re: Error Bars ( 95 % CI or SE)

[Stuart Rosen <s.rosen@xxxxxxxxx>]

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.