Re: Correction procedure

2001-06-07 Thread Bekir
Dear Eric Bohlman, Thank you for the explanation that have I benefited much from. [EMAIL PROTECTED] (Eric Bohlman) wrote in message news:<9ffb3t$kqh$[EMAIL PROTECTED]>... > Bekir <[EMAIL PROTECTED]> wrote: > > 2. There are apparently and exactly three groups; groups 1, 3, 5 that > > had the sa

Re: Correction procedure

2001-06-07 Thread Bekir
Dear Duncan Smith, Thank you for the reply that was very helpful. "Duncan Smith" <[EMAIL PROTECTED]> wrote in message news:<9fdp1s$2fp$[EMAIL PROTECTED]>... > 1. Adjust the alpha level for the individual tests. i.e. if the 'family' > (overall) error rate is 5%, then alpha for the individual t

Re: varinace

2001-06-07 Thread Shareef Siddeek
Hi Duane, I am interested to know who has derived these formulas (Is it you?) and what were the bases for the derivation? Siddeek Duane Allen wrote: > Kelly <[EMAIL PROTECTED]> wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > Hi, I'm trying to calculate sample size using the

Re: varinace

2001-06-07 Thread Duane Allen
Kelly <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Hi, I'm trying to calculate sample size using the sample size formula > for simple random sampling, which requires an estimate of the > variance. But I don't know the variance, instead I wan't to use the > ma

Re: varinace

2001-06-07 Thread Kelly
Glen, thanks for your response. How does it change if I know that the distribution is continous and unimodal? I have the formula for simple random sampling, which is approx=(z^2*s^2)/(xbar^2*epsilon^2). But my epsilon is very high since I cannot detect smaller differnces. It is about 30 which caus

Re: Dots in a Repeated Measures ANOVA

2001-06-07 Thread haytham siala
Thanks for your response. Can you please clarify the point you made about the Homogeneity test. Does this mean that the Homogeneity of covariance test has not been violated and thus the null hypothesis of equal covariances in the groups is therefore not rejected. Can you refer me to any books or

Re: Dots in a Repeated Measures ANOVA

2001-06-07 Thread Thom Baguley
haytham siala wrote: > > Can someone please help me in the following: > > 1. I have conducted a Repeated-Measures ANOVA using SPSS and the table of > Within-subjects effects showed some results of dots in the cells of the > table. I also get these dots in the alpha column of the Homogeneity of >