
How we change what others think, feel, believe and do 





Cramer's V
Explanations > Social Research > Analysis > Cramer's V Description  Example  Discussion  See also
DescriptionCramer's V is a way of calculating correlation in tables which have more than 2x2 rows and columns. It is used as posttest to determine strengths of association after chisquare has determined significance. V is calculated by first calculating chisquare, then using the following calculation:
V = SQRT( c^{2} / (n (k  1)) ) where c^{2} is chisquare and k is the number of rows or columns in the table. DiscussionChisquare says that there is a significant relationship between variables, but it does not say just how significant and important this is. Cramer's V is a posttest to give this additional information. Cramer's V varies between 0 and 1. Close to 0 it shows little association between variables. Close to 1, it indicates a strong association. Where the table is 2 x 2, use Phi. Cramer's V is named after the Swedish mathematician and statistician Harald Cramér. See alsoPhi Correlation, Chisquare test Cramér, H. (1999). Mathematical Methods of Statistics, Princeton University Press 

— Contact — Caveat — About — Students — Webmasters — Awards — Guestbook — Feedback — Sitemap — Changes — 

 
