In a study of the influence of touch on the likelihood of consumer purchase, a researcher had a confederate touch the participants in the treatment group on the shoulder three times during a sales encounter. In the control group the confederate did not touch the customer at all during the sales encounter. The researcher viewed videotapes of the sales interactions to insure that the confederate
touched each participant in the treatment group three times on the shoulder. Why is the researcher reviewing the tapes?
a. She is doing a manipulation check.
b. She is matching the participants.
c. She is conducting a double-blind experiment
d. She is attempting to avoid observer bias.
Answer a,
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