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Question
In an experiment examining the effect of mood on intelligence, participants are randomly assigned to watch either a funny movie or a sad movie before they complete an IQ test. The funny movie is shown in a classroom, while the sad movie is shown in the student lounge. The most obvious problem with this experiment is ______
Options
lack of statistical validity
IQ is confounded.
the use of random assignment
None of the above
Solution
In an experiment examining the effect of mood on intelligence, participants are randomly assigned to watch either a funny movie or a sad movie before they complete an IQ test. The funny movie is shown in a classroom, while the sad movie is shown in the student lounge. The most obvious problem with this experiment is the IQ is confounded.
