Correlational Research Designs
http://trochim.human.cornell.edu/tutorial/lamar/ylamar.htm
This is a short paper discussing several issues related to correlational designs.
Correlational Research Designs
http://www.tsum.edu/~trenckly/week4.htm
This is an excellent resource for information related to correlational research designs. It was developed by Tom Renckly at Troy State University—Montgomery and contains a number of excellent presentations of other research designs and issues related to them.
