Question 1

The following tables summarize responses and partial chi-square test results from a survey asking college students to respond to the following question: "Within the last 30 days,how often do you think the typical student at your school used alcohol?" Both men and women responded to this question.

Complete the table above for the computation of the chi-square statistic and calculate the value of chi-square.

Accepted Answer

The answer of The following tables summarize responses and partial...

Question 2

The null hypothesis for a chi-square test states that the variables of interest are unrelated
in the population,while the alternative hypothesis states that there is a relationship between the two variables in the population.

Accepted Answer

A) True 
 B)False

Question 3

For the chi-square goodness-of-fit test,statisticians recommend that the lowest _____ frequency of any cell be between 5 and 10 in a 2X2 table and 5 in larger tables.

Accepted Answer

A) unexpected 
B) total 
C) observed 
D) expected

Question 4

A researcher is interested in whether or not domestic violence occurs in the same proportion in families of alcoholics as it does in the population in general.If the relative frequency of domestic violence in the population is .05 and the relative frequency of no domestic violence in the population is .95,what is the chi-square goodness-of-fit value for the following data?

Accepted Answer

A) 5.5 
B) 21.23 
C) 30 
D) 60.5

Question 5

What is Fisher's Exact Test?

Accepted Answer

The answer of What is Fisher's Exact Test?...

Question 6

There are different chi-square distributions depending on the _____ associated with them.

Accepted Answer

A) standard errors 
B) marginal frequencies 
C) number of cells 
D) degrees of freedom

Question 7

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.

Question 8

One of the assumptions of the chi-square test is that the expected frequencies be no lower than approximately 5.Which of the following is a strategy to ensure that this assumption is met?

Accepted Answer

A) conduct a goodness-of-fit test 
B) add a third group to at least one of the variables 
C) increase sample size 
D) ensure that eta-squared is at least .15.

Question 9

A chi-square test may be used to analyze the relationship between two variables when ______.

Accepted Answer

A) both variables are qualitative in nature 
B) the two variables have been measured on the same subjects 
C) the observations on each variable are between-subjects in nature 
D) all of these

Question 10

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

Question 11

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

Accepted Answer

A) True 
 B)False

Question 12

The test of the chi-square statistic applies to the data as a whole and provides _____ as to which cells are causing rejection of H0.

Accepted Answer

A) no information 
B) partial information 
C) complete information 
D) none of these

Question 13

As the observed and expected frequencies become more dissimilar,then we are more likely to ______.

Accepted Answer

A) accept the null 
B) reject the null 
C) increase the sample size 
D) reject H1

Question 14

The interpretation of the obtained value for the fourfold point correlation coefficient/Cramer's statistic is similar to _____.

Accepted Answer

A) a Pearson correlation coefficient 
B) eta-squared 
C) omega-squared 
D) Tukey HSD

Question 15

As the discrepancy between the observed and expected frequencies becomes larger,the magnitude of the chi-square statistic ______.

Accepted Answer

A) decreases 
B) does not change 
C) increases 
D) increases by a factor of the square of the difference

Question 16

For the chi-square goodness-of-fit test,statisticians generally recommend that the lowest expected frequency of any category be somewhere between 5 and 10 if only two categories are involved and about 5 if more than two categories are involved.

Accepted Answer

A) True 
 B)False

Question 17

There are different chi-square distributions depending on the degrees of freedom associated with them.

Accepted Answer

A) True 
 B)False

Question 18

The assignment of one variable as the row variable and the other variable as the column variable in a contingency table is arbitrary.

Accepted Answer

A) True 
 B)False

Question 19

The fourfold point correlation coefficient and Cramér's statistic can range from -1.00 to 1.00.

Accepted Answer

A) True 
 B)False

Question 20

The logic underlying the chi-square test focuses on the concept of expected frequencies and how they compare to observed frequencies.

Accepted Answer

A) True 
 B)False

Exam 14: Chi-Square Test

The null hypothesis for a chi-square test states that the variables of interest are unrelated in the population,while the alternative hypothesis states that there is a relationship between the two variables in the population.

For the chi-square goodness-of-fit test,statisticians recommend that the lowest _____ frequency of any cell be between 5 and 10 in a 2X2 table and 5 in larger tables.

What is Fisher's Exact Test?

There are different chi-square distributions depending on the _____ associated with them.

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

One of the assumptions of the chi-square test is that the expected frequencies be no lower than approximately 5.Which of the following is a strategy to ensure that this assumption is met?

A chi-square test may be used to analyze the relationship between two variables when ______.

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

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

The test of the chi-square statistic applies to the data as a whole and provides _____ as to which cells are causing rejection of H₀.

As the observed and expected frequencies become more dissimilar,then we are more likely to ______.

The interpretation of the obtained value for the fourfold point correlation coefficient/Cramer's statistic is similar to _____.

As the discrepancy between the observed and expected frequencies becomes larger,the magnitude of the chi-square statistic ______.

For the chi-square goodness-of-fit test,statisticians generally recommend that the lowest expected frequency of any category be somewhere between 5 and 10 if only two categories are involved and about 5 if more than two categories are involved.

There are different chi-square distributions depending on the degrees of freedom associated with them.

The assignment of one variable as the row variable and the other variable as the column variable in a contingency table is arbitrary.

The fourfold point correlation coefficient and Cramér's statistic can range from -1.00 to 1.00.

The logic underlying the chi-square test focuses on the concept of expected frequencies and how they compare to observed frequencies.