Two groups of parents were given tests that asked about their children's eating habits. The pre-test was designed as a baseline before an educational seminar on the benefits of eating rutabagas was given to one group. Researchers were concerned that their post-test would be influenced by information in their pre-test, thus displaying an example of a:

Question

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The Hawthorne Effect refers to the phenomenon where participants modify their behavior simply because they are being observed or because they think they are in an experiment. In this case, the parents may have modified their responses on the post-test because they knew they were being studied or because they had participated in the pre-test. It is possible that the educational seminar had no effect on their actual behavior, but rather just influenced their responses on the post-test.

Two Groups of Parents Were Given Tests That Asked About