Molecular Biology Forum Life Science Forums - BioStatistics Forum http://www.molecularstation.com/forum/ Post Questions and Discuss Biostatistics Programs and Stastistical Analysis Questions en Sat, 21 Nov 2009 21:36:44 GMT vBulletin 60 http://www.molecularstation.com/forum/images/misc/rss.jpg Molecular Biology Forum Life Science Forums - BioStatistics Forum http://www.molecularstation.com/forum/ askfor general information? http://www.molecularstation.com/forum/biostatistics-forum/71070-askfor-general-information.html Sun, 01 Nov 2009 22:18:11 GMT i need some one to tell general information about BioStatistics? and if there any link to visit......... thanx
i need some one to tell general information about BioStatistics?
and if there any link to visit.........
thanx
]]> BioStatistics Forum http://www.molecularstation.com/forum/biostatistics-forum/71070-askfor-general-information.html Relibility issues http://www.molecularstation.com/forum/biostatistics-forum/70842-relibility-issues.html Wed, 07 Oct 2009 16:58:22 GMT Hello , I am doing a master thesis project and I am comparing(biological variables)between 3 groups (10 each) , under microscope , Do I have to have...
Hello ,
I am doing a master thesis project and I am comparing(biological variables)between 3 groups (10 each) , under microscope , Do I have to have another observer with me ? or I am enough !

If that ok

I will proceed to do calibration with my supervisor ? but can any one explain to me briefly how it is done or give me a good reference .

after I will be calibrated I will do intra - rater reliability using Kappa ? but my data will be ordinal , so what is your statistical advice regarding the test because I read about "weighted kappa " what do you think ?

Please really I am here because I am in critical situation in my master and I am looking for your valuable advice

Thank you waiting for replies ........

:)
]]> BioStatistics Forum matahap http://www.molecularstation.com/forum/biostatistics-forum/70842-relibility-issues.html Help with logistic regression in Minitab http://www.molecularstation.com/forum/biostatistics-forum/70821-help-logistic-regression-minitab.html Mon, 05 Oct 2009 13:40:18 GMT Hi, I am currently using minitab to perform logistic regression analysis on my data (as I produce binary response data). My assay involves...
Hi,

I am currently using minitab to perform logistic regression analysis on my data (as I produce binary response data). My assay involves using two different backgrounds of cells (background A and B) and comparing particular mutant strains to a wild type for each backround (mutants 1-n). Currently i am using logistic regression in minitab to compare each mutant strain to the wild type for that particular background. However I would also like to compare particular mutants in background A to there equivalent in background B. I thought one way to do this would be to simply repeat the logistic regression anaylsis for each mutant taking background A as a reference value (as i use wild type currently). However as i would be looking at approximately 20 different mutant strains this would be a lot of logistic regression analysis, and I am concerned it would leave me susceptible to type 1 error.

Can anyone offer any help in this regrad of how I could possibly deal with this, it would be much appreciated.

:)
]]> BioStatistics Forum scooby2 http://www.molecularstation.com/forum/biostatistics-forum/70821-help-logistic-regression-minitab.html