RESEARCH STUDY 13.3 Dr. Grayson, a Health Psychologist, Conducts a Study Examining Whether

RESEARCH STUDY 13.3
Dr. Grayson, a health psychologist, conducts a study examining whether when exposed to pictures of food, people eat more than when they are not exposed to pictures of food. She goes to a fast food restaurant in downtown Chicago that has pictures of menu items on its menu board and measures the amount of food ordered during the lunch rush (11:30 a.m.-1:30 p.m.) on Tuesday. On Thursday, she does the same thing but at a fast food restaurant that does not have pictures on their menu board (about two blocks away from the first restaurant) . She finds that the restaurant that has pictures of food sells more food than the restaurant that does not have pictures.
-Refer to Research Study 13.3 above to answer the following question. Because Dr.Grayson conducted her study in a field setting,which of the following is an advantage of her study?

A) It automatically generalizes to other situations (e.g., fancy restaurants, cafeterias) .
B) It automatically generalizes to other people.
C) It removes all threats to internal validity.
D) It has a high degree of ecological validity.
E) All of the above are advantages.

Correct Answer:

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