Professor Schweppes and his graduate student measure how much people seem to be enjoying various carbonated beverages. They observed 75 people, and their interobserver reliability was .64. What should they do, and why?
a. Clarify their operational definitions because their interobserver reliability is not very good
b. Continue to analyze their data because they have good interobserver reliability
c. Observe more participants to increase power
d. Start the study over with different beverages
Ans: A
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