Systems, such as astrology and graphology, enjoy wide popularity because of their

One way to avoid the trap of perfectionism when you struggle with a task involves ___________

a. taking action b. complaining c. thinking about what you are bad at and focus more attention on that d. overlooking the problem

Your colleague is trying to determine the effectiveness of a new anti-drug advertisement. She

asks one group of 60 people to complete a questionnaire on attitudes toward drug, then shows the advertisement to all 60 people. Afterward, she asks the participants to complete the survey again. If she then finds a difference score between the pre- and post-advertisement questionnaire scores and ranks the results, what test can she use to analyze the results? A) chi-square test for two levels of a single nominal variable B) Wilcoxon T Test C) Mann-Whitney U Test D) rank sums test E) Kruskal-Wallis H Test