Homework SourseQuestion 1 In a study of human development investigators sho
Question 1:
In a study of human development, investigators showed two different types of movies to groups of children. Crackers were available in a bowl, and the investigators compared the number of crackers eaten by children watching both movies. One movie was shown at 8 AM (right after the children had breakfast) and the other at 11 AM (right before the children had lunch). It was found that during the movie shown at 11 AM, more crackers were eaten than during the movie shown at 8 AM. The investigators concluded that the different types of movies had different effects on appetite.
The response variable in this experiment is
A. the number of crackers eaten.
B. the different kinds of movies.
C. the time each movie was shown.
D. the bowls.
Question 2 :
| In order to investigate treatments for morbid obesity, obese subjects satisfying fairly strict requirements were randomly assigned to one of three groups: gastric bypass surgery; participation in a diet and exercise program; or both gastric bypass surgery and participation in the diet and exercise program. Researchers carefully observed the amount of weight lost five years after the study began. The response is | |||||||||
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Solution
1.
The response variable is the affected variable. Here, the affected variable is
OPTION A: The number of crackers eaten. [ANSWER, A]
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2.
The response variable is the affected variable. Here, the affected variable is
OPTION B: the amount of weight lost five years after the study began. [ANSWER, B]
