Question 1

The Wilcoxon T test would be appropriate for which of the following situations?

Accepted Answer

A)  More than two groups are involved in the study. 
B)  Two sets of scores have been logically paired together. 
C)  Pre- and post-testing of the same participants. 
D)  Either "b" or "c" above. 
A)  More than two groups are involved in the study. 
B)  Two sets of scores have been logically paired together. 
C)  Pre- and post-testing of the same participants. 
D)  Either "b" or "c" above.

Question 2

Compare the obtained and critical values for the test results below and determine if the null hypothesis can be rejected.
 $\begin{array}{|l|l|l|c|}
\hline &  {\begin{array}{c}
\text { Obtained } \
\text { Value }
\end{array}} &  {\begin{array}{c}
\text { Critical } \
\text { Value }
\end{array}} & \begin{array}{c}
\text { Reject Ho } \
\text { Yes/No }
\end{array} \
\hline \text { a. } & r_{s_{a b t}}=.8391 & r_{s_{\text {crit }}}=. .7273 & \
\hline \text { b. } & T_{\text {bbt }}=10 & T_{\text {crit }}=12 & \
\hline \text { c. } & \mathcal{L}_{\text {obt }}=10.12 & \chi_{\text {crit }}^{2}=14.067 & \
\hline \text { d. } & U_{\text {obt }}=8 & U_{\text {crit }}=15 & \
\hline
\end{array}$

Accepted Answer

Reject H₀?

Question 3

The Wilcoxon matched-pairs signed-ranks test is the nonparametric alternative to the

Accepted Answer

A)  one-way ANOVA, independent samples design. 
B)  related samples t test. 
C)  independent samples t test. 
D)  Pearson r. 
A)  one-way ANOVA, independent samples design. 
B)  related samples t test. 
C)  independent samples t test. 
D)  Pearson r.

Question 4

The symbol used for the ________________________ test is T.

Accepted Answer

A)  Kruskal-Wallis 
B)  Spearman 
C)  Mann-Whitney 
D)  Wilcoxon matched-pairs signed-ranks 
A)  Kruskal-Wallis 
B)  Spearman 
C)  Mann-Whitney 
D)  Wilcoxon matched-pairs signed-ranks

Question 5

Judges for a debate competition rated eight debaters on presentation, clarity, argumentation, and rebuttal. The composite ratings of two judges are shown below. Use the Spearman rs to determine the degree of relationship between the judges' ratings. Test at α = .05, two-tailed.
Judge A: 16, 20, 22, 14, 18, 12, 17
Judge B: 14, 21, 19, 13, 20, 11, 18

Accepted Answer

Test for Spearman correlation:

Question 6

The Mann Whitney test is the nonparametric alternative to the

Accepted Answer

A)  one-way ANOVA, independent samples design. 
B)  related samples t test. 
C)  independent samples t test. 
D)  Pearson r. 
A)  one-way ANOVA, independent samples design. 
B)  related samples t test. 
C)  independent samples t test. 
D)  Pearson r.

Question 7

Identify the parametric test for which the following nonparametric alternatives would be appropriate:
a. Mann-Whitney test
b. Wilcoxon matched-pairs signed-ranks test
c. Kruskal-Wallis test
d. Spearman correlation

Accepted Answer

Parametric equivalent
a. Indep

Question 8

Which test statistic below can be converted into a z-score if the size of both samples is greater than 20?

Accepted Answer

A)  Spearman 
B)  Mann-Whitney 
C)  Wilcoxon 
D)  Kruskal-Wallis 
A)  Spearman 
B)  Mann-Whitney 
C)  Wilcoxon 
D)  Kruskal-Wallis

Question 9

The Kruskal-Wallis test is the nonparametric alternative to the

Accepted Answer

A)  independent samples t test. 
B)  one-way ANOVA, independent samples design. 
C)  two-way ANOVA, independent samples design. 
D)  related samples t test. 
A)  independent samples t test. 
B)  one-way ANOVA, independent samples design. 
C)  two-way ANOVA, independent samples design. 
D)  related samples t test.

Question 10

For each of the following situations, decide which nonparametric test should be used. Assume that there is concern about meeting the assumptions of a parametric test or that the scores are measured on an ordinal scale.
a. A random sample of students taking statistics classes take a study skills assessment prior to the first class meeting. They take the assessment again at the end of the semester and their ratings are compared.
b. A dietician randomly assigns bunches of carrots into four groups, each of which will involve a different cooking method: roasting, steaming, boiling, and microwaving. Afterward, the nutrient content of each approach was evaluated and compared. 
c. Study skill ratings for a sample of students who have taken a statistics course are compared with the ratings of students who have not taken a statistics course.
d. The business manager of a large company wants to know if there is a relationship between sociability and productivity. She randomly selects 20 employees and administers a sociability survey. She then determined the productivity ratings of the same employees and compared them with their sociability ratings to assess the degree of relationship.
e. A homesickness questionnaire is administered to incoming freshmen at their student orientation. The ratings are compared for male and female students.
f. Improvement ratings are compared for three different types of therapy for people who suffer from social anxiety.

Accepted Answer

Which nonparametric test?
a. W

Question 11

The flavor of four different brands of chocolate ice cream were rated from 1 to 9. Which test should be used to analyze the data?

Accepted Answer

A)  Mann-Whitney test 
B)  Wilcoxon matched-pairs signed-ranks test 
C)  Kruskal-Wallis test 
D)  Spearman test 
A)  Mann-Whitney test 
B)  Wilcoxon matched-pairs signed-ranks test 
C)  Kruskal-Wallis test 
D)  Spearman test

Question 12

If a researcher was interested in determining if a relationship exists between degree of education and attitudes towards tax reform, which test would be appropriate?

Accepted Answer

A)  Mann-Whitney test 
B)  Wilcoxon matched-pairs signed-ranks test 
C)  Kruskal-Wallis test 
D)  Spearman test 
A)  Mann-Whitney test 
B)  Wilcoxon matched-pairs signed-ranks test 
C)  Kruskal-Wallis test 
D)  Spearman test

Question 13

Conduct the Mann-Whitney U values for the following ranked scores and identify which one would be used as Uobt.
 $\begin{array}{cc}
\underline { \text{Rank}_{1}}&\underline { \text{Rank}_{1}}\ 
1 & 2 \
4 & 3 \
6 & 5 \
7 & 8 \
9 & 11 \
10 &
\end{array}$

Accepted Answer

Mann-Whitn

Question 14

Which test involves ranking the difference scores rather than the scores themselves?

Accepted Answer

A)  Mann-Whitney test 
B)  Wilcoxon matched-pairs signed-ranks test 
C)  Spearman correlation test 
D)  Kruskal-Wallis test 
A)  Mann-Whitney test 
B)  Wilcoxon matched-pairs signed-ranks test 
C)  Spearman correlation test 
D)  Kruskal-Wallis test

Question 15

The symbol used for the ______________________ test is H.

Accepted Answer

A)  Kruskal-Wallis 
B)  Spearman 
C)  Mann-Whitney 
D)  Wilcoxon matched-pairs, signed-ranks 
A)  Kruskal-Wallis 
B)  Spearman 
C)  Mann-Whitney 
D)  Wilcoxon matched-pairs, signed-ranks

Question 16

The symbol used for the ________________________ test is rs.

Accepted Answer

A)  Kruskal-Wallis 
B)  Spearman 
C)  Mann-Whitney 
D)  Wilcoxon matched-pairs signed-ranks 
A)  Kruskal-Wallis 
B)  Spearman 
C)  Mann-Whitney 
D)  Wilcoxon matched-pairs signed-ranks

Question 17

In ranking the scores 8, 10, 7, 8, 6, and 12, the score of 10 is given a rank of __________.

Accepted Answer

A)  4 
B)  5 
C)  6 
D)  4.5 
A)  4 
B)  5 
C)  6 
D)  4.5

Question 18

Identify the nonparametric alternative for each of the following parametric tests:
a. Independent samples t test
b. Related samples t test
c. One-way ANOVA, independent samples design
d. Pearson correlation

Accepted Answer

Nonparametric alternatives
a.

The Wilcoxon T test would be appropriate for which of the following situations?

Compare the obtained and critical values for the test results below and determine if the null hypothesis can be rejected. Obtained Value Critical Value Reject Ho Yes/No a. =.8391 =..7273 b. =10 =12 c. =10.12 =14.067 d. =8 =15

The Wilcoxon matched-pairs signed-ranks test is the nonparametric alternative to the

The symbol used for the ________________________ test is T.

The Mann Whitney test is the nonparametric alternative to the

Identify the parametric test for which the following nonparametric alternatives would be appropriate: a. Mann-Whitney test b. Wilcoxon matched-pairs signed-ranks test c. Kruskal-Wallis test d. Spearman correlation

Which test statistic below can be converted into a z-score if the size of both samples is greater than 20?

The Kruskal-Wallis test is the nonparametric alternative to the

The flavor of four different brands of chocolate ice cream were rated from 1 to 9. Which test should be used to analyze the data?

If a researcher was interested in determining if a relationship exists between degree of education and attitudes towards tax reform, which test would be appropriate?

Conduct the Mann-Whitney U values for the following ranked scores and identify which one would be used as U_obt_. 1 2 4 3 6 5 7 8 9 11 10

Which test involves ranking the difference scores rather than the scores themselves?

The symbol used for the ______________________ test is H.

The symbol used for the ________________________ test is r_s.

In ranking the scores 8, 10, 7, 8, 6, and 12, the score of 10 is given a rank of __________.

Identify the nonparametric alternative for each of the following parametric tests: a. Independent samples t test b. Related samples t test c. One-way ANOVA, independent samples design d. Pearson correlation

Organizing Data Using Tables and Graphs

Measures of Central Tendency

Measures of Variability

Z-Scores and Other Standard Scores

Probability and the Normal Distribution

Sampling Distribution of Means

Hypothesis Testing

One-Sample T-Test

Two-Sample T-Test: Independent Samples Design

Two-Sample T-Test: Related Samples Design

Confidence Interval Versus Point Estimation

One-Way Analysis of Variance

Factorial Analysis of Variance

Correlation and Regression

Chi-Square

Introduction to Statistics

Filters

Exam 17: Nonparametric Statistics for Ordinal Data

The Wilcoxon T test would be appropriate for which of the following situations?

Compare the obtained and critical values for the test results below and determine if the null hypothesis can be rejected. Obtained Value Critical Value Reject Ho Yes/No a. =.8391 =..7273 b. =10 =12 c. =10.12 =14.067 d. =8 =15

The Wilcoxon matched-pairs signed-ranks test is the nonparametric alternative to the

The symbol used for the ________________________ test is T.

The Mann Whitney test is the nonparametric alternative to the

Identify the parametric test for which the following nonparametric alternatives would be appropriate: a. Mann-Whitney test b. Wilcoxon matched-pairs signed-ranks test c. Kruskal-Wallis test d. Spearman correlation

Which test statistic below can be converted into a z-score if the size of both samples is greater than 20?

The Kruskal-Wallis test is the nonparametric alternative to the

The flavor of four different brands of chocolate ice cream were rated from 1 to 9. Which test should be used to analyze the data?

If a researcher was interested in determining if a relationship exists between degree of education and attitudes towards tax reform, which test would be appropriate?

Conduct the Mann-Whitney U values for the following ranked scores and identify which one would be used as Uobt. 1 2 4 3 6 5 7 8 9 11 10

Which test involves ranking the difference scores rather than the scores themselves?

The symbol used for the ______________________ test is H.

The symbol used for the ________________________ test is rs.

In ranking the scores 8, 10, 7, 8, 6, and 12, the score of 10 is given a rank of __________.

Identify the nonparametric alternative for each of the following parametric tests: a. Independent samples t test b. Related samples t test c. One-way ANOVA, independent samples design d. Pearson correlation

Organizing Data Using Tables and Graphs

Measures of Central Tendency

Measures of Variability

Z-Scores and Other Standard Scores

Probability and the Normal Distribution

Sampling Distribution of Means

Hypothesis Testing

One-Sample T-Test

Two-Sample T-Test: Independent Samples Design

Two-Sample T-Test: Related Samples Design

Confidence Interval Versus Point Estimation

One-Way Analysis of Variance

Factorial Analysis of Variance

Correlation and Regression

Chi-Square

Introduction to Statistics

Filters

Conduct the Mann-Whitney U values for the following ranked scores and identify which one would be used as U_obt_. 1 2 4 3 6 5 7 8 9 11 10

The symbol used for the ________________________ test is r_s.