Multiple Choice
A researcher examined the effect of lighting on learning.Randomly assigned participants learned material while using a 100-watt or a 125-watt bulb.There were no differences between the two groups.The nonsignificant results may have occurred because of
A) a costly measure of learning.
B) insufficient strength of the manipulation.
C) selection differences.
D) random assignment of participants.
Correct Answer:

Verified
Correct Answer:
Verified
Q2: In the early stages of a research
Q3: Dr.Mills measures participants' brain-wave activity in order
Q4: Which of the following physiological measures would
Q5: Which of the following statements is true
Q6: Experiments conducted in field settings generally minimize
Q7: Dr.Columbo measures the tension in a participant's
Q8: Investigators will sometimes use deception in the
Q9: In a study examining the effect of
Q10: You conduct an experiment on the effect
Q11: The strongest possible manipulation should not be