Relative to correlational studies, quasi-experimental studies allow researchers to control extraneous variables with the methods of holding conditions constant or
a. random assignment of subjects to conditions.
b. balancing.
c. using highly controlled laboratory conditions.
d. none of the above
Question 2
Sophia is participating in a psychology experiment that is studying the nature of problem solving strategies. As part of the study, Sophia is asked to spend several minutes trying to solve various word problems.
Following these problems, she is asked to complete a written questionnaire that asks questions related to her thought process as she was engaged in problem solving. This questionnaire represents a __________ measure of covert behavior.
a. physiological
b. psychophysical
c. self-report
d. difference threshold
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buffers commonly employed for biochemical studies
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