Field experiments often lack ______ because it is sometimes difficult to ensure that all members of the test group are exposed to the treatment.
A) internal validity
B) external validity
C) reliability
D) substantive questions
Correct Answer:
Verified
Q3: A _ experiment is one that occurs
Q4: _ means that, within the conditions created
Q5: A researcher is studying the social habits
Q6: Which of the following occurs when some
Q7: A researcher studying the attitudes of college
Q9: Which of the following refers to the
Q10: A researcher who fails to account for
Q11: In a political research experiment, the group
Q12: A researcher is studying the formation of
Q13: To conduct a _, the organization would
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