Perform any necessary post hoc tests.
A college admissions officer wants to know if visiting the campus affects people’s perceptions of the college. He has seven people fill out an attitude toward the college questionnaire before the campus visit, during the visit (at lunch), and after the visit. The data are collected on a 7-point Likert scale with higher numbers indicating more positive attitudes. The data he collects are as follows.
Time Mean
Before 2.43
During/at lunch 3.43
After 5.57
Ans: Our critical mean difference is 1.37; therefore, the mean after visiting is significantly higher/more positive than it is before or during the visit.
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a. True b. False
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