: Identify tests for ordinal data.

Instructions: Read the following and answer the questions.

Identify the appropriate nonparametric test for each of the following examples and explain why a nonparametric test is appropriate.

1.A researcher measures fear as the time it takes to walk across a presumably scary portion of campus. The times (in seconds) that it took a sample of 12 participants were 8, 12, 15, 13, 12, 10, 6, 10, 9, 15, 50, and 52. _one sample sign test/one sample, from the information given no distribution of time it takes to walk across a portion of campus and it is continuous so that random variable so concluded to use one sample sing test/one sample Wilcoxon signed rank test __________________________________

2.Two groups of participants were given 5 minutes to complete puzzle. The participants were told that the puzzle would be easy. In truth, in one group, the puzzle had a solution (Group Solution), and in the second group, the puzzle had no solution (Group No Solution). The researchers measured stress levels and found that frustration levels were low for all participants in Group Solution and for all but a few participants who showed strikingly high levels of stress in Group No Solution. Wilcoxon rank sum test/ Mann-Whitney test, there are two independent populations (group solution and group no solution) and the random variables are measured in continuous scale, the researchers measured stress levels of the 2 groups and want to compare the stress levels between 2 groups___________________________________

3.A researcher measured student scores on an identical assignment to see how well students perform for different types of professors. In Group Adviser, their professor was also their adviser; in Group Major, their professor taught in their major field of study; in Group Nonmajor, their professor did not teach in their major field of study. Student scores were ranked in each class, and the differences in ranks were compared. __Kruskal-Wallis H test for one way ANOVA, compare the score of the student in 3 independent groups, group advisor, group major, and group nonmajor_________________________________

4.A researcher has the same participants rank two types of advertisements for the same product. Differences in ranks for each advertisement were compared. __Paired sample sign test/paired sample Wilcoxon signed rank test, it is a paired observations as the researcher has the same participants rank 2 types of advertisements for the same product_________________________________

5.A professor measures student motivation before, during, and after a statistics course in a given semester. Student motivation was ranked at each time in the semester, and the differences in ranks were compared. _Kruskal-Wallis H test for one way ANOVA, there are 3 groups to be compared, student, motivation before, during, and after a statistics course in a semester__________________________________

4.13 - You did not provide the correct nonparametric tests for 2 of these scenarios.To improve, review the different types of nonparametric tests available and assess which one(s) best match the given scenarios and provide an explanation for each as to why it is the correct selection.

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