Question 1

Cell frequencies are the sum of the frequencies in the corresponding row or column.

Accepted Answer

A) True 
 B)False

Question 2

A chi-square test can only be used to analyze the relationship between qualitative variables.

Accepted Answer

A) True 
 B)False

Question 3

When both of the variables under study have only two levels,the sampling distribution of the chi-square statistic corresponds _____ to a chi-square distribution than when one or both variables have more than two levels.

Accepted Answer

A) more precisely 
B) exactly 
C) more closely 
D) less closely 
A) more precisely 
B) exactly 
C) more closely 
D) less closely

Question 4

In a chi-square test,the null hypothesis states that ______.

Accepted Answer

A) the two variables of interest are related in the population 
B) the two variables of interest are unrelated in the population 
C) the column frequencies equal the row frequencies 
D) the sum of the row and column frequencies equal the total frequency 
A) the two variables of interest are related in the population 
B) the two variables of interest are unrelated in the population 
C) the column frequencies equal the row frequencies 
D) the sum of the row and column frequencies equal the total frequency

Question 5

Discuss the sampling distribution of the chi-square statistic and the chi-square distribution.

Accepted Answer

A sampling distribution of the chi-squar

Question 6

____________________ is a popular alternative to the chi-square test for testing the relationship between two variables in a 2x2 contingency table,when sample sizes are small.

Accepted Answer

The answer of ____________________ is a popular alternative to the...

Question 7

Which of the following indices measure the strength of the relationship between two variables in a contingency table when both variables have three levels?

Accepted Answer

A) the phi coefficient 
B) Pearson correlation 
C) Cramer's statistic 
D) the fourfold point correlation coefficient 
A) the phi coefficient 
B) Pearson correlation 
C) Cramer's statistic 
D) the fourfold point correlation coefficient

Question 8

The question addressed by the _____ test is whether a distribution of frequencies across categories for a variable in a population are distributed in a specified manner.

Accepted Answer

A) nonparametric 
B) goodness-of-fit 
C) F 
D) distribution-specific 
A) nonparametric 
B) goodness-of-fit 
C) F 
D) distribution-specific

Question 9

What is the goodness-of-fit test?

Accepted Answer

The question addressed by the goodness-o

Question 10

A modified Bonferroni procedure can be applied to pairwise comparisons between the proportions of observations in various cells of the contingency table to analyze the nature of the relationship between two qualitative variables.

Accepted Answer

A) True 
 B)False

Question 11

A 2x5 contingency table indicates that the column variable has two levels and the row variable has 5 levels.

Accepted Answer

A) True 
 B)False

Question 12

If the researcher suspects that the strength of the relationship between two variables in the population is .50 as indexed by Cramer's statistic,what sample size should she use in a study involving a 3 x 3 contingency table and an alpha level of .05 to achieve a power of .70?

Accepted Answer

A) 7 
B) 19 
C) 22 
D) 28 
A) 7 
B) 19 
C) 22 
D) 28

Question 13

Summarize the steps involved in computing expected frequencies.

Accepted Answer

The steps involved in the calculation of

Question 14

Which of the following is the appropriate way to report a chi-square statistic in a research report?

Accepted Answer

A) c2 (2,N = 200)= 15.71,p 2 (2,200)= 15.71,p = .01. 
C) c2 = 15.71,p 2 = 15.71,p < .01. 
A) c2 (2,N = 200)= 15.71,p 2 (2,200)= 15.71,p = .01. 
C) c2 = 15.71,p 2 = 15.71,p < .01.

Question 15

The use of frequency information is predicated on the fact that the chi-square test is designed for use with _____ variables,and it is not appropriate to compute _____ for variables of this type.

Accepted Answer

A) quantitative;marginal frequencies 
B) quantitative;contingency tables 
C) qualitative;means 
D) qualitative;degrees of freedom 
A) quantitative;marginal frequencies 
B) quantitative;contingency tables 
C) qualitative;means 
D) qualitative;degrees of freedom

Question 16

The basis of analysis for the chi-square test is a(n)_____ table (also called a frequency or crosstabulation table).

Accepted Answer

A) expected frequency 
B) cellular 
C) summary 
D) contingency 
A) expected frequency 
B) cellular 
C) summary 
D) contingency

Question 17

The fourfold point correlation coefficient is used when _____.

Accepted Answer

A) one of the variables has three levels 
B) both of the variables have three or more levels 
C) the variables are ordinal in nature 
D) both variables have two levels each 
A) one of the variables has three levels 
B) both of the variables have three or more levels 
C) the variables are ordinal in nature 
D) both variables have two levels each

Question 18

A researcher is interested in investigating 3 types of interventions designed to increase physical activity.The independent variable is the type of intervention and the dependent variable is amount of physical activity,measured in minutes per week.If this researcher wanted to use chi-square to analyze the data,what modification would need to be made?

Accepted Answer

A) Formulas utilizing degrees of freedom need to be modified to N-3. 
B) Subtract .5 from each of the differences between the observed and expected values. 
C) At least double the amount of data should be collected. 
D) The dependent variable needs to be collapsed into categories. 
A) Formulas utilizing degrees of freedom need to be modified to N-3. 
B) Subtract .5 from each of the differences between the observed and expected values. 
C) At least double the amount of data should be collected. 
D) The dependent variable needs to be collapsed into categories.

Question 19

Because the relationship between two variables can take a number of different forms,the alternative hypothesis for the chi-square test,as with the F test in analysis of variance,is directional in nature.

Accepted Answer

A) True 
 B)False

Question 20

If two variables are unrelated in the population,the _____ value of chi-square will equal _____ a.sample;0

Accepted Answer

A) population;1.0 
B) sample;1.0 
C) population;0 
A) population;1.0 
B) sample;1.0 
C) population;0

Cell frequencies are the sum of the frequencies in the corresponding row or column.

A chi-square test can only be used to analyze the relationship between qualitative variables.

When both of the variables under study have only two levels,the sampling distribution of the chi-square statistic corresponds _____ to a chi-square distribution than when one or both variables have more than two levels.

In a chi-square test,the null hypothesis states that ______.

Discuss the sampling distribution of the chi-square statistic and the chi-square distribution.

____________________ is a popular alternative to the chi-square test for testing the relationship between two variables in a 2x2 contingency table,when sample sizes are small.

Which of the following indices measure the strength of the relationship between two variables in a contingency table when both variables have three levels?

The question addressed by the _____ test is whether a distribution of frequencies across categories for a variable in a population are distributed in a specified manner.

What is the goodness-of-fit test?

A modified Bonferroni procedure can be applied to pairwise comparisons between the proportions of observations in various cells of the contingency table to analyze the nature of the relationship between two qualitative variables.

A 2x5 contingency table indicates that the column variable has two levels and the row variable has 5 levels.

If the researcher suspects that the strength of the relationship between two variables in the population is .50 as indexed by Cramer's statistic,what sample size should she use in a study involving a 3 x 3 contingency table and an alpha level of .05 to achieve a power of .70?

Summarize the steps involved in computing expected frequencies.

Which of the following is the appropriate way to report a chi-square statistic in a research report?

The use of frequency information is predicated on the fact that the chi-square test is designed for use with _ variables,and it is not appropriate to compute _ for variables of this type.

The basis of analysis for the chi-square test is a(n)_____ table (also called a frequency or crosstabulation table).

The fourfold point correlation coefficient is used when _____.

Because the relationship between two variables can take a number of different forms,the alternative hypothesis for the chi-square test,as with the F test in analysis of variance,is directional in nature.

If two variables are unrelated in the population,the _ value of chi-square will equal _ a.sample;0

Introduction and Mathematical Preliminaries

Frequency and Probability Distributions

Percentiles percentile Ranks standard Scores and the Normal Distribution

Pearson Correlation and Regression: Descriptive Aspects

Measures of Central Tendency and Variability

Estimation and Sampling Distributions

Hypothesis Testing: Inferences About a Single Mean

Probability

Principles of Research Design and Statistical Preliminaries for Analyzing Bivariate Relationships

Independent Groups T -Test

Correlated Groups T-Test

One-Way Repeated Measures Analysis of Variance

Pearson Correlation and Regression: Inferential Aspects

Nonparametric Statistics

Two-Way Between-Subjects Analysis of Variance

Overview and Extension: Statistical Tests for More Complex Designs

Filters

Exam 15: Chi-Square Test

Cell frequencies are the sum of the frequencies in the corresponding row or column.

A chi-square test can only be used to analyze the relationship between qualitative variables.

When both of the variables under study have only two levels,the sampling distribution of the chi-square statistic corresponds _____ to a chi-square distribution than when one or both variables have more than two levels.

In a chi-square test,the null hypothesis states that ______.

Discuss the sampling distribution of the chi-square statistic and the chi-square distribution.

____________________ is a popular alternative to the chi-square test for testing the relationship between two variables in a 2x2 contingency table,when sample sizes are small.

Which of the following indices measure the strength of the relationship between two variables in a contingency table when both variables have three levels?

The question addressed by the _____ test is whether a distribution of frequencies across categories for a variable in a population are distributed in a specified manner.

What is the goodness-of-fit test?

A modified Bonferroni procedure can be applied to pairwise comparisons between the proportions of observations in various cells of the contingency table to analyze the nature of the relationship between two qualitative variables.

A 2x5 contingency table indicates that the column variable has two levels and the row variable has 5 levels.

If the researcher suspects that the strength of the relationship between two variables in the population is .50 as indexed by Cramer's statistic,what sample size should she use in a study involving a 3 x 3 contingency table and an alpha level of .05 to achieve a power of .70?

Summarize the steps involved in computing expected frequencies.

Which of the following is the appropriate way to report a chi-square statistic in a research report?

The use of frequency information is predicated on the fact that the chi-square test is designed for use with _____ variables,and it is not appropriate to compute _____ for variables of this type.

The basis of analysis for the chi-square test is a(n)_____ table (also called a frequency or crosstabulation table).

The fourfold point correlation coefficient is used when _____.

Because the relationship between two variables can take a number of different forms,the alternative hypothesis for the chi-square test,as with the F test in analysis of variance,is directional in nature.

If two variables are unrelated in the population,the _____ value of chi-square will equal _____ a.sample;0

Introduction and Mathematical Preliminaries

Frequency and Probability Distributions

Percentiles percentile Ranks standard Scores and the Normal Distribution

Pearson Correlation and Regression: Descriptive Aspects

Measures of Central Tendency and Variability

Estimation and Sampling Distributions

Hypothesis Testing: Inferences About a Single Mean

Probability

Principles of Research Design and Statistical Preliminaries for Analyzing Bivariate Relationships

Independent Groups T -Test

Correlated Groups T-Test

One-Way Repeated Measures Analysis of Variance

Pearson Correlation and Regression: Inferential Aspects

Nonparametric Statistics

Two-Way Between-Subjects Analysis of Variance

Overview and Extension: Statistical Tests for More Complex Designs

Filters

The use of frequency information is predicated on the fact that the chi-square test is designed for use with _ variables,and it is not appropriate to compute _ for variables of this type.

If two variables are unrelated in the population,the _ value of chi-square will equal _ a.sample;0