Question

research methods

27 minutes, 52 seconds. QUESTION 5 Educational researchers often administer a pretest before administering a treatment. However administering a pretest can be a threat to external validity for which of the following reasons? O A pretest may create a large difference between treatment conditions O A pretest may reduce the effectiveness of the treatment O A pretest may increase the unreliability of the post-test measurement 0A pretest may sensitize participants to the measurement and alter their natural behavior QUESTION 6 There is a concern that a laboratory experiment cannot be generalized to situations outside of the laboratory. This is a concern about which of the following? External validity Concurrent validity

Answer 1

Answer- A pretest may sensitize participants to the measurement and alter their natural behavior.

Explanation- A pre-test refers to a trail which can be given before conducting the final experiment. It helps a researcher to identify any significant problem that can arrive at the final experiment. It is the test that can be administrated just for practices. But sometimes a pretest can sensitize the participants to that specific measurement and can manipulate their natural or observing behaviors.