15. Fifty-two volunteers participated in an experiment to investigate the effect of noise on reaction time. The volunteers were divided into 2 groups based on age, the youngest 26 in the "young" group and the oldest 26 in the "old" group. Each person in the young group was assigned at random to have his or her reaction time measured in a quiet room or in a noisy room. Each person in the old group was also assigned at random to the quiet room or the noisy room. Which of the following is true?
15. Fifty-two volunteers participated in an experiment to investigate the effect of noise on reaction time. The volunteers were divided into 2 groups based on age, the youngest 26 in the "young" group and the oldest 26 in the "old" group. Each person in the young group was assigned at random to have his or her reaction time measured in a quiet room or in a noisy room. Each person in the old group was also assigned at random to the quiet room or the noisy room. Which of the following is true?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Fifty-two volunteers participated in an experiment to investigate the effect of noise on reaction time. The volunteers were divided into two groups based on age, the youngest 26 in the "young" group and the oldest 26 in the "old" group. Each person in the young group was assigned at random to have his or her reaction time measured in a quiet room or in a noisy room. Each person in the old group was also assigned at random to the quiet room or the noisy room. Which of the following is true?
(a) This experiment has a control group.
(b) This experiment incorporates blocking.
(c) This experiment is double blind.
(d) This experiment is double blind and incorporates blocking.
(e) This experiment has a control group, is double blind and incorporates blocking.
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