If students who complete a study skills course raised their grade point averages, can we conclude that the course caused their improvement?
a. Yes, because the scientific data was collected.
b. Yes, because a negative correlation exists between these students' grade point averages before and after taking the course.
c. Yes, because the course resulted in a self-fulfilling prophecy.
d. No, because there was no control group.
ANSWER: d
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Which saying captures the principle emphasized by the Gestalt psychologists?
A) The whole is greater than the sum of its parts. B) Perception is based more on what we do not see than on what we do see. C) Perception is part sensory experience, and part judgment. D) No two people will perceive a stimulus in the exact same way.
A researcher might choose to conduct her/his experiment several times to make sure that their results were not due to chance
Indicate whether this statement is true or false.