Ensuring experimental control is often more difficult in research on thinking and problem solving because
a. between-subjects designs are often used.
b. experiments in this area are often more complicated than experiments in other areas of psychology.
c. there are many extraneous variables that might influence performance.
d. all of these.
Question 2
A researcher knows that there is a relationship between obesity and watching television for young children. However, it is not known whether children watch more TV because they are overweight, or whether they are overweight because they watch so much TV. This is an example of the third-variable problem.
a. True
b. False
Indicate whether the statement is true or false
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