There are several articles that discuss this:
http://www.bing.com/search?q=confounding%20variables%20that%20must%20be%20controlled%20in%20a%20nonequivalent%20control-group%20design%20are%3A%20&pc=cosp&ptag=D061515A213C8318C1&form=CONMHP&conlogo=CT3210127
Two common confounding variables that must be controlled in a nonequivalent control-group design are:
A. selection and regression to the mean.
B. selection and maturation.
C. maturation and regression to the mean.
D. sequence effects and maturation.
MY CHOICE IS A. BUT IM THINKING IT COULD ALSO BE B. HELP!!!
1 answer
1 answer