Monday, November 09, 2009

Effect size of matched and unmatched data in Maltab

"In statistics, an effect size is a measure of the strength of the relationship between two variables in a statistical population, or a sample-based estimate of that quantity" from here.

The script below calculates effect size for matched (paired) and unmatched (unpaired) data as described in [1].

So, if C and E sets are matched than effect size d is 1.265. If C and E sets are unmatched than effect size d is also 1.265. The two sizes are equal for this example only.


[1] Dunlop, W. P., Cortina, J. M., Vaslow, J. B., & Burke, M. J. (1996).
Meta-analysis of experiments with matched groups or repeated measures designs. Psychological Methods, 1, 170-177.

1 comment:

  1. I bought a pair of gucci bags for my boyfriend at this online store. replica gucci handbags The quality is very good, the style of the bag is very like, it is very worth buying, there are many famous designer brand replica gucci,replica luxury gucci monogramming we are sure that it has high quality and appearance.