Professor Higgins is interested in shopping behavior, so he watches people as they go about their normal shopping at the mall. Which of the following statements is most likely to be true about this study?
a. It is a laboratory study and, therefore, requires informed consent.
b. It uses archival data and, therefore, does not require informed consent.
c. It is an observational study and, therefore, does not require informed consent.
d. It is low in external validity.
Ans: C
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a. s2 = 2 c. s2 = 16 b. s2 = 8 d. s2 = 64
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A. After termination B. For cause C. Only employees in safety sensitive positions
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