Dr. Freedom conducted an experiment to determine whether varying the sound level would
effect participant’s evaluation of a video. Participants were randomly assigned to watch the
same video with the sound level set at high, medium, or low. In this example, the
independent variable is
Select one:
a. the evaluation of the video.
b. the sound level of the video.
c. the video.
d. high, medium, and low.
Solution:
Given: Dr. Freedom conducted an experiment to determine whether varying the sound level would effect participant’s evaluation of a video.
Here Dr. Freedom trying to find out what effect would occur on participant’s evaluation of a video by changing the sound level.
So the evaluation of the video depends on the sound level of the video.
Thus independent variable is:
b) the sound level of the video.
Dr. Freedom conducted an experiment to determine whether varying the sound level would effect participant’s...
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#3
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