Question 1

For a Wilcoxon signed-ranks T test,we decide to reject the null hypothesis when T is larger than the critical value.

Accepted Answer

A) True 
 B)False  False

Question 2

Nonparametric tests are used when the measured data are on an ordinal scale of measurement.

Accepted Answer

A) True 
 B)False  True

Question 3

The sign test is used as a nonparametric alternative to which parametric test?

Accepted Answer

A) one-sample t-test 
B) two-independent sample t-test 
C) related samples t-test 
D) both A and C 
A) one-sample t-test 
B) two-independent sample t-test 
C) related samples t-test 
D) both A and C D

Question 4

Which of the following nonparametric tests can be computed using a normal appropriation formula?

Accepted Answer

A) related samples sign test 
B) Wilcoxon signed-ranks T test 
C) Mann-Whitney U test 
D) all of the above 
A) related samples sign test 
B) Wilcoxon signed-ranks T test 
C) Mann-Whitney U test 
D) all of the above

Question 5

What is the null hypothesis for a Mann-Whitney U test?

Accepted Answer

A) The number of scores above and below the median are equal. 
B) The ranks in two groups are equally dispersed. 
C) The mean differences between two groups are equal. 
D) The ranks in two groups are equal to 0. 
A) The number of scores above and below the median are equal. 
B) The ranks in two groups are equally dispersed. 
C) The mean differences between two groups are equal. 
D) The ranks in two groups are equal to 0.

Question 6

Each of the following is an appropriate test for ordinal data,except

Accepted Answer

A) the Mann-Whitney U test 
B) the chi-square goodness-of-fit test 
C) the one-sample sign test 
D) the Friedman test 
A) the Mann-Whitney U test 
B) the chi-square goodness-of-fit test 
C) the one-sample sign test 
D) the Friedman test

Question 7

Each of the following hypothesis tests has a normal approximation formula,except for the

Accepted Answer

A) Mann-Whitney U test 
B) related samples sign test 
C) Wilcoxon signed-ranks T test 
D) Friedman test 
A) Mann-Whitney U test 
B) related samples sign test 
C) Wilcoxon signed-ranks T test 
D) Friedman test

Question 8

When the null hypothesis is true and n is greater than or equal to 5 per group,the test statistic H is approximately distributed as a chi-square distribution.

Accepted Answer

A) True 
 B)False

Question 9

The key advantage of measuring ranked data is that it minimizes ________ caused by outliers.

Accepted Answer

A) significance 
B) effect size 
C) variability 
D) all of the above 
A) significance 
B) effect size 
C) variability 
D) all of the above

Question 10

When the test statistic for the Kruskal-Wallis H test is equal to or smaller than the critical value,we reject the null hypothesis.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following best explains how to interpret the test statistic for the Wilcoxon signed-ranks T?

Accepted Answer

A) The test statistic is interpreted the same as that for the related samples t-test. 
B) The larger the value of T,the more likely we are to reject the null hypothesis. 
C) The smaller the value of T,the more likely we are to reject the null hypothesis. 
D) We reject the null hypothesis when T is less than .05. 
A) The test statistic is interpreted the same as that for the related samples t-test. 
B) The larger the value of T,the more likely we are to reject the null hypothesis. 
C) The smaller the value of T,the more likely we are to reject the null hypothesis. 
D) We reject the null hypothesis when T is less than .05.

Question 12

What is the null hypothesis for a Kruskal-Wallis HH test?

Accepted Answer

A) The number of scores above and below the median are equal. 
B) The median differences between two groups are equal. 
C) The sum of ranks in each group does not differ between groups. 
D) The ranks in two groups are equal to 0. 
A) The number of scores above and below the median are equal. 
B) The median differences between two groups are equal. 
C) The sum of ranks in each group does not differ between groups. 
D) The ranks in two groups are equal to 0.

Question 13

The Friedman test is used as a nonparametric alternative to which parametric test?

Accepted Answer

A) related samples t-test 
B) two-independent sample t-test 
C) one-way between-subjects ANOVA 
D) one-way within-subjects ANOVA 
A) related samples t-test 
B) two-independent sample t-test 
C) one-way between-subjects ANOVA 
D) one-way within-subjects ANOVA

Question 14

For a Mann-Whitney U test,the more lopsided the dispersion of scores between groups,the more likely we are to reject the null hypothesis.

Accepted Answer

A) True 
 B)False

Question 15

Tests for ordinal data are regarded as nonparametric tests.

Accepted Answer

A) True 
 B)False

Question 16

A researcher computes the Wilcoxon signed-ranks T test.She computes T = 68 using a sample of 24 participants.What is the decision for a two-tailed test at a .05 level of significance?

Accepted Answer

A) Retain the null hypothesis. 
B) Reject the null hypothesis. 
C) There is not enough information to answer this question. 
A) Retain the null hypothesis. 
B) Reject the null hypothesis. 
C) There is not enough information to answer this question.

Question 17

The Mann-Whitney U is a statistical procedure used to determine whether the dispersion of ranks in two or more independent groups is equal.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following gives the best explanation for why it would be advantageous to convert the following scores to ordinal data?

Accepted Answer

A) Because the data are normally distributed. 
B) Because the data are split into two groups. 
C) Because there is an outlier in the data for Group 2. 
D) Because parametric tests are always preferred to nonparametric tests. 
A) Because the data are normally distributed. 
B) Because the data are split into two groups. 
C) Because there is an outlier in the data for Group 2. 
D) Because parametric tests are always preferred to nonparametric tests.

Question 19

When the null hypothesis is true and n is greater than or equal to 5 per group,the test statistic for the Friedman test is approximately distributed as a

Accepted Answer

A) t-distribution 
B) F-distribution 
C) normal distribution 
D) chi-square distribution 
A) t-distribution 
B) F-distribution 
C) normal distribution 
D) chi-square distribution

Question 20

Tests for ordinal data meaningfully convey information regarding ________.

Accepted Answer

A) variance 
B) differences 
C) both A and B 
A) variance 
B) differences 
C) both A and B

For a Wilcoxon signed-ranks T test,we decide to reject the null hypothesis when T is larger than the critical value.

Nonparametric tests are used when the measured data are on an ordinal scale of measurement.

The sign test is used as a nonparametric alternative to which parametric test?

Which of the following nonparametric tests can be computed using a normal appropriation formula?

What is the null hypothesis for a Mann-Whitney U test?

Each of the following is an appropriate test for ordinal data,except

Each of the following hypothesis tests has a normal approximation formula,except for the

When the null hypothesis is true and n is greater than or equal to 5 per group,the test statistic H is approximately distributed as a chi-square distribution.

The key advantage of measuring ranked data is that it minimizes ________ caused by outliers.

When the test statistic for the Kruskal-Wallis H test is equal to or smaller than the critical value,we reject the null hypothesis.

Which of the following best explains how to interpret the test statistic for the Wilcoxon signed-ranks T?

What is the null hypothesis for a Kruskal-Wallis HH test?

The Friedman test is used as a nonparametric alternative to which parametric test?

For a Mann-Whitney U test,the more lopsided the dispersion of scores between groups,the more likely we are to reject the null hypothesis.

Tests for ordinal data are regarded as nonparametric tests.

A researcher computes the Wilcoxon signed-ranks T test.She computes T = 68 using a sample of 24 participants.What is the decision for a two-tailed test at a .05 level of significance?

The Mann-Whitney U is a statistical procedure used to determine whether the dispersion of ranks in two or more independent groups is equal.

Which of the following gives the best explanation for why it would be advantageous to convert the following scores to ordinal data?

When the null hypothesis is true and n is greater than or equal to 5 per group,the test statistic for the Friedman test is approximately distributed as a

Tests for ordinal data meaningfully convey information regarding ________.

Introduction to Statistics

Summarizing Data: Frequency Distributions in Tables and Graphs

Summarizing Data: Central Tendency

Summarizing Data: Variability

Probability

Probability, Normal Distributions, and Z Scores

Probability and Sampling Distributions

Hypothesis Testing: Significance, Effect Size, and Power

Testing Means: One-Sample and Two-Independent Sample T Tests

Testing Means: Related Samples T Test

Estimation and Confidence Intervals

Analysis of Variance: One-Way Between-Subjects Design

Analysis of Variance: One-Way Within-Subjects Repeated Measures Design

Analysis of Variance: Two-Way Between-Subjects Factorial Design

Correlation

Linear Regression and Multiple Regression

Nonparametric Tests: Chi-Square Tests

Filters

Exam 18: Nonparametric Tests: Tests for Ordinal Data

For a Wilcoxon signed-ranks T test,we decide to reject the null hypothesis when T is larger than the critical value.

Nonparametric tests are used when the measured data are on an ordinal scale of measurement.

The sign test is used as a nonparametric alternative to which parametric test?

Which of the following nonparametric tests can be computed using a normal appropriation formula?

What is the null hypothesis for a Mann-Whitney U test?

Each of the following is an appropriate test for ordinal data,except

Each of the following hypothesis tests has a normal approximation formula,except for the

When the null hypothesis is true and n is greater than or equal to 5 per group,the test statistic H is approximately distributed as a chi-square distribution.

The key advantage of measuring ranked data is that it minimizes ________ caused by outliers.

When the test statistic for the Kruskal-Wallis H test is equal to or smaller than the critical value,we reject the null hypothesis.

Which of the following best explains how to interpret the test statistic for the Wilcoxon signed-ranks T?

What is the null hypothesis for a Kruskal-Wallis HH test?

The Friedman test is used as a nonparametric alternative to which parametric test?

For a Mann-Whitney U test,the more lopsided the dispersion of scores between groups,the more likely we are to reject the null hypothesis.

Tests for ordinal data are regarded as nonparametric tests.

A researcher computes the Wilcoxon signed-ranks T test.She computes T = 68 using a sample of 24 participants.What is the decision for a two-tailed test at a .05 level of significance?

The Mann-Whitney U is a statistical procedure used to determine whether the dispersion of ranks in two or more independent groups is equal.

Which of the following gives the best explanation for why it would be advantageous to convert the following scores to ordinal data?

When the null hypothesis is true and n is greater than or equal to 5 per group,the test statistic for the Friedman test is approximately distributed as a

Tests for ordinal data meaningfully convey information regarding ________.

Introduction to Statistics

Summarizing Data: Frequency Distributions in Tables and Graphs

Summarizing Data: Central Tendency

Summarizing Data: Variability

Probability

Probability, Normal Distributions, and Z Scores

Probability and Sampling Distributions

Hypothesis Testing: Significance, Effect Size, and Power

Testing Means: One-Sample and Two-Independent Sample T Tests

Testing Means: Related Samples T Test

Estimation and Confidence Intervals

Analysis of Variance: One-Way Between-Subjects Design

Analysis of Variance: One-Way Within-Subjects Repeated Measures Design

Analysis of Variance: Two-Way Between-Subjects Factorial Design

Correlation

Linear Regression and Multiple Regression

Nonparametric Tests: Chi-Square Tests

Filters