Testing Effects occur because
A)of the high rates of refusal and the resulting lack of representativeness.
B)of the tendency for new panel members to report unusual levels of purchasing
C)panel members are representative of the population
D)panel members provide longitudinal data
E)panel members provides higher quality data than sample

Question

Quizplus · Accepted Answer

Testing effects occur because new panel members may initially report unusual levels of purchasing due to the novelty of being part of a study, which can affect the data collected.

Testing Effects Occur Because