Re: [R] Bonferroni correction for multiple correlation tests

2012-08-30 Thread Michael Dewey
At 00:23 30/08/2012, Louise Cowpertwait wrote: Please can someone advise me how I can adjust correlations using bonferroni's correction? I am doing manny correlation tests as part of an investigation of the validity/reliability of a psychometric measure. Louise, apart from the excellent advice

Re: [R] Bonferroni correction for multiple correlation tests

2012-08-29 Thread Mark Leeds
Hi: Bonferroni can be used for any hypothesis test or confidence interval where a statistic is calculated. The idea behind it is that, if a statistic is being calculated many times ( as in the case of say anova where multiple differences between groups can be calculated ), then the critical value u

Re: [R] Bonferroni correction for multiple correlation tests

2012-08-29 Thread Joshua Wiley
On Wed, Aug 29, 2012 at 6:48 PM, R. Michael Weylandt wrote: > On Wed, Aug 29, 2012 at 6:23 PM, Louise Cowpertwait > wrote: >> Please can someone advise me how I can adjust correlations using >> bonferroni's correction? I am doing manny correlation tests as part of an >> investigation of the val

Re: [R] Bonferroni correction for multiple correlation tests

2012-08-29 Thread Bert Gunter
Indeed... But it seems clear that, 1. This is off topic for this list. 2. Ms. Cowpertwait would be wise to seek the help of a local statistician. does it not? Cheers, Bert On Wed, Aug 29, 2012 at 6:48 PM, R. Michael Weylandt wrote: > On Wed, Aug 29, 2012 at 6:23 PM, Louise Cowpertwait > wrot

Re: [R] Bonferroni correction for multiple correlation tests

2012-08-29 Thread David Winsemius
On Aug 29, 2012, at 4:23 PM, Louise Cowpertwait wrote: Please can someone advise me how I can adjust correlations using bonferroni's correction? I am doing manny correlation tests as part of an investigation of the validity/reliability of a psychometric measure. Help would be so appreciat

Re: [R] Bonferroni correction for multiple correlation tests

2012-08-29 Thread R. Michael Weylandt
On Wed, Aug 29, 2012 at 6:23 PM, Louise Cowpertwait wrote: > Please can someone advise me how I can adjust correlations using bonferroni's > correction? I am doing manny correlation tests as part of an investigation of > the validity/reliability of a psychometric measure. > Help would be so appr

[R] Bonferroni correction for multiple correlation tests

2012-08-29 Thread Louise Cowpertwait
Please can someone advise me how I can adjust correlations using bonferroni's correction? I am doing manny correlation tests as part of an investigation of the validity/reliability of a psychometric measure. Help would be so appreciated! Cheers, Louise ___