The tendency for new members of a panel to report unusual levels of purchase is the result of
A)testing effects.
B)mortality.
C)selection bias.
D)probability sampling.
E)none of the above.

Question

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The Answer of The tendency for new members of a panel to report unusual levels of purchase is the result of
A)testing effects.
B)mortality.
C)selection bias.
D)probability sampling.
E)none of the above.

The Tendency for New Members of a Panel to Report