Statistics for interpreting ELISA results - Statistics for interpreting ELISA results (Aug/11/2005 )

Hello:

I would like to know how meaningful is the ELISA data I am generating. In brief, I am conducting a study in which the antibody titers from 3 different vaccine formulations are being evaluated at two week intervals. I would like to determine if the differences in OD readings among these 3 vaccines is significant. I only have MS Excel at my disposal. What type of statistical test should I use? Can I manipulate Excel to perform that test? If not, what statistical package do you recommend? I can supply the data upon request.

Thanks!

-anointedhelp-

Hi,

you can install a complementary macro in Excel named "analysis utilities"

after activating this option you can access all statistical utilities (Student, ANOVA, and more...) via the "Tools" menu

in your case an ANOVA test is recommended since you need to compare means of 3 treatments

for more informations about statistical test, please go to
http://helios.bto.ed.ac.uk/bto/statistics/tress1.html

Seb_

-tryptofan-

QUOTE

in your case an ANOVA test is recommended since you need to compare means of 3 treatments

hm, i'd say anointedhelp needs a ranked-sum test (mann-whitney-u test, respectively wilcoxon test)

I personally prefer "sigmastat" as statistical package, as it comes along with "sigmaplot" which is what we use all the time for graphic presentation of data.

mike

-jadefalcon-