(3 points) A study of human development showed two types of movies to a group of
ID: 3329502 • Letter: #
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(3 points) A study of human development showed two types of movies to a group of children. Crackers were available in a bowl, and the investigators compared the number of crackers eaten by the children while watching the different kinds of movies. One kind was shown at 8 A.M. and another at 11 A.M. It was found that during the movie shown at 11 A.M., more crackers were eaten than during the movie shown at 8 A.M. The investigators concluded that the different types of movies had an effect on appetite (a) The response variable in this experiment is A. the number of crackers eaten. B. the time the movie was shown. OC. the different kinds of movies. D. the bowls. (b) A lurking variable in this experiment is A. the different kinds of movies. B. the bowls. C. the number of crackers eaten D. the time the movie was shown. (c) This is an example of a A. block design. B. simple random sample. C. matched pairs design. D. None of the above.Explanation / Answer
a) response variable : option A : as change in crackers eaten is observed
b) option D is correct : as the time can affect number of crackers eaten
c)option B is correct
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