Question 1

Many nonparametric tests are called ______ because they make no assumptions regarding the shape of the distribution in the population.

Accepted Answer

A)  parametric tests 
B)  skewed-distribution tests 
C)  significance-free tests 
D)  distribution-free tests 
A)  parametric tests 
B)  skewed-distribution tests 
C)  significance-free tests 
D)  distribution-free tests

Question 2

A researcher computes a 2 * 3 chi-square test for independence.In this example,the degrees of freedom are 2.

Accepted Answer

A) True 
 B)False

Question 3

A researcher selects a sample of 80 people and records the frequency of participants choosing a low,moderate,or high calorie dessert in a buffet.What are the degrees of freedom for this chi-square goodness-of-fit test?

Accepted Answer

A)  2 
B)  3 
C)  79 
D)  80 
A)  2 
B)  3 
C)  79 
D)  80

Question 4

Homogeneity of variance is one assumption for the chi-square goodness-of-fit test.

Accepted Answer

A) True 
 B)False

Question 5

For a 2 * 2 chi-square test for independence,the value of a phi coefficient will equal the value of Cramer's V for a given data set.

Accepted Answer

A) True 
 B)False

Question 6

A researcher can correct for having expected frequencies smaller than five by ______.

Accepted Answer

A)  increasing the number of cells 
B)  increasing the sample size 
C)  decreasing the observed frequency 
D)  increasing the number of cells and increasing the sample size 
A)  increasing the number of cells 
B)  increasing the sample size 
C)  decreasing the observed frequency 
D)  increasing the number of cells and increasing the sample size

Question 7

A researcher conducts a chi-square goodness-of-fit test in which k = 5.What is the critical value for this test at a .05 level of significance?

Accepted Answer

A)  4 
B)  5 
C)  9.49 
D)  11.07 
A)  4 
B)  5 
C)  9.49 
D)  11.07

Question 8

The degrees of freedom for the chi-square test for independence are k - 1.

Accepted Answer

A) True 
 B)False

Question 9

One restriction for measuring frequency data is that the size of expected frequencies should never be less than five in a given cell.

Accepted Answer

A) True 
 B)False

Question 10

If a researcher computes a chi-square goodness-of-fit test in which k = 4 and n = 40,then the degrees of freedom for this test is 3.

Accepted Answer

A) True 
 B)False

Question 11

A researcher reports the following results for a chi-square test: $\chi$2 ()= 5.39,p < .05 (V = 0.22).What is the maximum number of levels that an independent variable could have had?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Question 12

A researcher computes a 2 * 3 chi-square test for independence.What is the critical value for this test at a .05 level of significance?

Accepted Answer

A)  3.84 
B)  5.99 
C)  7.81 
D)  12.59 
A)  3.84 
B)  5.99 
C)  7.81 
D)  12.59

Question 13

A local ice cream shop wants to see if they should promote a new swizzleberry swirl or creamsicle flavored drink.In order to determine which one to promote,they took a sample of 80 patrons and asked them to choose which they preferred.The one that is significantly preferred over the other (at a .05 level of significance)will be promoted.It is expected that an equal number of patrons will choose each flavor.Based on the observed frequencies given below,what is the decision for this test?

Accepted Answer

A)  promote the swizzleberry swirl flavored drink 
B)  promote the creamsicle flavored drink 
C)  do not promote any flavored drinks. 
D)  there is not enough information to answer this question 
A)  promote the swizzleberry swirl flavored drink 
B)  promote the creamsicle flavored drink 
C)  do not promote any flavored drinks. 
D)  there is not enough information to answer this question

Question 14

It is most appropriate to report effect size for the chi-square goodness-of-fit test,but not for the chi-square test for independence.

Accepted Answer

A) True 
 B)False

Question 15

A chi-square goodness-of-fit test with three levels of a categorical variable will have 3 degrees of freedom.

Accepted Answer

A) True 
 B)False

Question 16

One way a researcher can correct for having expected frequencies smaller than five is to increase the levels of the categorical variable such that the number of levels ______.

Accepted Answer

A)  is equal to the sample size 
B)  is greater than four 
C)  is less than five 
D)  is minimal 
A)  is equal to the sample size 
B)  is greater than four 
C)  is less than five 
D)  is minimal

Question 17

To summarize the chi-square test,report the test statistic,the degrees of freedom,and the p value.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following measures of effect size can be reported with a 3 * 4 chi-square test for independence?

Accepted Answer

A)  proportion of variance 
B)  the phi coefficient 
C)  Cramer's V 
D)  all of these 
A)  proportion of variance 
B)  the phi coefficient 
C)  Cramer's V 
D)  all of these

Question 19

The degrees of freedom for a chi-square goodness-of-fit test are ______.

Accepted Answer

A)  k - 1 
B)  n - 1 
C)  (k1 - 1)(k2 - 1) 
D)  (k - 1)(n - 1) 
A)  k - 1 
B)  n - 1 
C)  (k1 - 1)(k2 - 1) 
D)  (k - 1)(n - 1)

Question 20

A researcher selects a sample of 110 participants and computes the following phi correlation coefficient: rF1F1F1S1$\phi$F1F1F10 = .31.What is the value of $\chi$2?

Accepted Answer

A)  3.84 
B)  10.57 
C)  34.10 
D)  there is not enough information to answer this question 
A)  3.84 
B)  10.57 
C)  34.10 
D)  there is not enough information to answer this question

Many nonparametric tests are called ______ because they make no assumptions regarding the shape of the distribution in the population.

A researcher computes a 2 * 3 chi-square test for independence.In this example,the degrees of freedom are 2.

A researcher selects a sample of 80 people and records the frequency of participants choosing a low,moderate,or high calorie dessert in a buffet.What are the degrees of freedom for this chi-square goodness-of-fit test?

Homogeneity of variance is one assumption for the chi-square goodness-of-fit test.

For a 2 * 2 chi-square test for independence,the value of a phi coefficient will equal the value of Cramer's V for a given data set.

A researcher can correct for having expected frequencies smaller than five by ______.

A researcher conducts a chi-square goodness-of-fit test in which k = 5.What is the critical value for this test at a .05 level of significance?

The degrees of freedom for the chi-square test for independence are k - 1.

One restriction for measuring frequency data is that the size of expected frequencies should never be less than five in a given cell.

If a researcher computes a chi-square goodness-of-fit test in which k = 4 and n = 40,then the degrees of freedom for this test is 3.

A researcher reports the following results for a chi-square test: $\chi$ ² ()= 5.39,p < .05 (V = 0.22).What is the maximum number of levels that an independent variable could have had?

A researcher computes a 2 * 3 chi-square test for independence.What is the critical value for this test at a .05 level of significance?

It is most appropriate to report effect size for the chi-square goodness-of-fit test,but not for the chi-square test for independence.

A chi-square goodness-of-fit test with three levels of a categorical variable will have 3 degrees of freedom.

One way a researcher can correct for having expected frequencies smaller than five is to increase the levels of the categorical variable such that the number of levels ______.

To summarize the chi-square test,report the test statistic,the degrees of freedom,and the p value.

Which of the following measures of effect size can be reported with a 3 * 4 chi-square test for independence?

The degrees of freedom for a chi-square goodness-of-fit test are ______.

A researcher selects a sample of 110 participants and computes the following phi correlation coefficient: r_$\phi$ = .31.What is the value of $\chi$ ²?

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: Truehe Related-Samples T Test

Estimation and Confidence Intervals

Analysis of Variance: One-Way Between-Subjects Design

Analysis of Variance: One-Way Within-Subjects Repeated-Measuresdesign

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

Correlation

Linear Regression and Multiple Regression

Nonparametric Tests: Tests for Ordinal Data

Filters

Exam 17: Nonparametric Tests: Chi-Square Tests

Many nonparametric tests are called ______ because they make no assumptions regarding the shape of the distribution in the population.

A researcher computes a 2 * 3 chi-square test for independence.In this example,the degrees of freedom are 2.

A researcher selects a sample of 80 people and records the frequency of participants choosing a low,moderate,or high calorie dessert in a buffet.What are the degrees of freedom for this chi-square goodness-of-fit test?

Homogeneity of variance is one assumption for the chi-square goodness-of-fit test.

For a 2 * 2 chi-square test for independence,the value of a phi coefficient will equal the value of Cramer's V for a given data set.

A researcher can correct for having expected frequencies smaller than five by ______.

A researcher conducts a chi-square goodness-of-fit test in which k = 5.What is the critical value for this test at a .05 level of significance?

The degrees of freedom for the chi-square test for independence are k - 1.

One restriction for measuring frequency data is that the size of expected frequencies should never be less than five in a given cell.

If a researcher computes a chi-square goodness-of-fit test in which k = 4 and n = 40,then the degrees of freedom for this test is 3.

A researcher reports the following results for a chi-square test: χ\chiχ 2 ()= 5.39,p < .05 (V = 0.22).What is the maximum number of levels that an independent variable could have had?

A researcher computes a 2 * 3 chi-square test for independence.What is the critical value for this test at a .05 level of significance?

It is most appropriate to report effect size for the chi-square goodness-of-fit test,but not for the chi-square test for independence.

A chi-square goodness-of-fit test with three levels of a categorical variable will have 3 degrees of freedom.

One way a researcher can correct for having expected frequencies smaller than five is to increase the levels of the categorical variable such that the number of levels ______.

To summarize the chi-square test,report the test statistic,the degrees of freedom,and the p value.

Which of the following measures of effect size can be reported with a 3 * 4 chi-square test for independence?

The degrees of freedom for a chi-square goodness-of-fit test are ______.

A researcher selects a sample of 110 participants and computes the following phi correlation coefficient: r ϕ\phiϕ = .31.What is the value of χ\chiχ 2?

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: Truehe Related-Samples T Test

Estimation and Confidence Intervals

Analysis of Variance: One-Way Between-Subjects Design

Analysis of Variance: One-Way Within-Subjects Repeated-Measuresdesign

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

Correlation

Linear Regression and Multiple Regression

Nonparametric Tests: Tests for Ordinal Data

Filters

A researcher reports the following results for a chi-square test: $\chi$ ² ()= 5.39,p < .05 (V = 0.22).What is the maximum number of levels that an independent variable could have had?

A researcher selects a sample of 110 participants and computes the following phi correlation coefficient: r_$\phi$ = .31.What is the value of $\chi$ ²?