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Question
In an observation study, when "shopping time in a supermarket" is defined as: "Using a stopwatch, start the stopwatch the moment the customer enters the store and stop the stopwatch as soon as the customer is handed a receipt by the checkout clerk," this is best described as an example of a(n) _____.A.nominal scale
B.equivalent-form scale
C.operational definition
D.test-retest method
Answer
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