Creates adjusted effect sizes for linear regression.
Usage
effect.size(lm.out)
Arguments
lm.out
Output from lm class object
Value
Returns adjusted R-squared metric.
Details
The function effect.size produces a family of effect
size corrections for the R-squared metric produced from an
lm class object. Suggestions for recommended correction
are supplied, based on Yin and Fan (2001).
References
Yin, P., & Fan. X. (2001) Estimated R^2 shrinkage in multiple
regression: A comparison of different analytical methods.
The Journal of Experimental Education, 69,
203-224.