Mann-Whitney U Test Wilcoxon T Test t-test for Dependent Means t-test for Independent Means
A study was designed to test whether presenting one side or both sides of an argument is more effective in changing attitudes. Perhaps presenting just the “pro” side would be more effective because the audience would not be aware of the “anti” side. A large random sample was selected and subjects were assigned to a “Pro Only” condition or a “Pro + Anti” condition. Both presentations were made by the same person. At the end of the presentation, subjects were asked to report their attitudes about the issue using a 6-point likert scale.
Choose the statistic you would use to test your hypothesis.
Mann-Whitney U Test Wilcoxon T Test t-test for Dependent Means t-test for Independent Means
