An experimenter studying the overjustification effect wants to compare the behaviour of students who are rewarded for doing an enjoyable task with that of students who are not rewarded. For each student he decides which condition they will be in by flipping a coin. This procedure

Question

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A) The coin flip ensures that each student has an equal chance of being in either condition.
B) While this procedure does not guarantee a random sample, the randomization helps to minimize the effect of selection bias and increase the likelihood that the groups will be relatively equivalent at the outset.
C) Random assignment helps to rule out initial group differences as a potential cause of the experimental effects.

An Experimenter Studying the Overjustification Effect Wants to Compare the Behaviour