In sample selection a threat that occurs when individuals have been assigned to the experimental group on the basis of their extreme score on dependent variable is referred.as:
A. Experimental mortality
B. Regression artifact
C. Maturation
D. None of these
Answer:A
In sample selection a threat that occurs when individuals have been assigned to the experimental group on the basis of their extreme score on dependent variable is referred.as:
A. Experimental mortality B. Regression artifact C. Maturation D. None of these