3. A study at a Southern university reported that the average final exam grade o

Question

3. A study at a Southern university reported that the average final exam grade of students who chose to enroll in an online version of a class was equal to that of students who took the class on-campus from the same professor. Fill in the following table s there a control treatment (and, if so, what is it)? Is there any accounting for individual variation? Is there repetition in the experiment? What, if any, confounding variables are not addressed in the experiment? Can we say with some confidence that on-line learning is as effective as traditional in- class learning?

Explanation / Answer

1. Yes, there is a control treatment which is the mode of learning. There are 2 treatment groups :- a) Online class b) On-campus class

2. No

3. No

4. A possible confounding variable that could be addressed in the experiment is "Previous subject knowledge". Thus students with or without prior subject knowledge and experience might have a considerable effect in the experimental outcome.

Since the confounding variable is not accounted for in the experiment, hence we cannot confidently say that online learning is as effective as traditional class learning. The experimental outcome cannot be attributed to the type of learning.

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