I'm trying to distinguish between a true experiment and a quasi-experiment and need to know if the presence of a control groups is a necessity for a true experiment (rather than just typical).If subjects are randomized to 1 of 4 groups, none of which is a control group, is it still a true experiment?
Random assignment into groups acts as a way to control variables. You only use a control group when interaction with the experimenter (giving attention) or drug research .....it depends upon what you are doing. And yes, random assignment is very much a TRUE experiment.. More the norm than having a control group. (psych prof)
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment