Question 1

In the Chi square test for independence,the research hypothesis is

Accepted Answer

A) always one-tailed. 
B) the variables are dependent. 
C) the variables are independent. 
D) expected frequencies are greater than observed frequencies. 
A) always one-tailed. 
B) the variables are dependent. 
C) the variables are independent. 
D) expected frequencies are greater than observed frequencies. B

Question 2

In the Chi square test,degrees of freedom are

Accepted Answer

A) N - 1. 
B) N1 + N2 - 2. 
C) (r + 1)(c + 1). 
D) (r - 1)(c - 1). 
A) N - 1. 
B) N1 + N2 - 2. 
C) (r + 1)(c + 1). 
D) (r - 1)(c - 1). D

Question 3

When the null hypothesis in the chi square test for independence is true,there should be

Accepted Answer

A) large difference between the observed frequencies and the expected frequencies. 
B) little difference between the observed frequencies and the expected frequencies. 
C) no difference between the observed frequencies and the marginals. 
D) no difference between the row and the column marginals. 
A) large difference between the observed frequencies and the expected frequencies. 
B) little difference between the observed frequencies and the expected frequencies. 
C) no difference between the observed frequencies and the marginals. 
D) no difference between the row and the column marginals. B

Question 4

A researcher reports a c2 (obtained)of 75.34 (a =.05,df = 1,c2 (critical)= 3.84,N = 13,678).The researcher claims that the relationship is extremely significant.What issue should be raised?

Accepted Answer

A) degrees of freedom are much too small for a sample this large. 
B) alpha is too low 
C) sample size is very large and the actual relationship between the variables might be trivial 
D) the value for c2 (critical)is much too low 
A) degrees of freedom are much too small for a sample this large. 
B) alpha is too low 
C) sample size is very large and the actual relationship between the variables might be trivial 
D) the value for c2 (critical)is much too low

Question 5

The Chi square test is based on the assumption that

Accepted Answer

A) the variables are dependent. 
B) the expected frequencies are not produced by random chance. 
C) samples are non-random. 
D) the null hypothesis is true. 
A) the variables are dependent. 
B) the expected frequencies are not produced by random chance. 
C) samples are non-random. 
D) the null hypothesis is true.

Question 6

A bivariate table in which both variables have three categories has

Accepted Answer

A) three cells. 
B) six cells. 
C) nine cells. 
D) thirty-three cells. 
A) three cells. 
B) six cells. 
C) nine cells. 
D) thirty-three cells.

Question 7

For the chi square test using very large samples,there may be a difference between

Accepted Answer

A) randomness and independence. 
B) expected and calculated frequencies. 
C) statistical significance and importance. 
D) dependent variables and dependent relationships. 
A) randomness and independence. 
B) expected and calculated frequencies. 
C) statistical significance and importance. 
D) dependent variables and dependent relationships.

Question 8

Unlike other tests of significance,chi square is based on

Accepted Answer

A) a bivariate table. 
B) means as well as proportions. 
C) continuous variables only. 
D) ordinal-level variables only. 
A) a bivariate table. 
B) means as well as proportions. 
C) continuous variables only. 
D) ordinal-level variables only.

Question 9

Some potential difficulties arise in the chi square test when

Accepted Answer

A) sample size is small. 
B) sample size is very large. 
C) many cells have expected frequencies of five or less. 
D) all of these 
A) sample size is small. 
B) sample size is very large. 
C) many cells have expected frequencies of five or less. 
D) all of these

Question 10

If two variables are independent,the cell frequencies will be

Accepted Answer

A) exactly the same. 
B) concentrated in only two of the cells. 
C) less than the expected frequencies. 
D) determined by random chance. 
A) exactly the same. 
B) concentrated in only two of the cells. 
C) less than the expected frequencies. 
D) determined by random chance.

Question 11

Which pattern of cell frequencies in a 2x2 table would indicate that the variables are independent?

Accepted Answer

A) all cell frequencies are exactly the same 
B) there are a different number of cases in each of the four cells 
C) only the cells in the top row of the table have cases in them 
D) there are no cases in any cell 
A) all cell frequencies are exactly the same 
B) there are a different number of cases in each of the four cells 
C) only the cells in the top row of the table have cases in them 
D) there are no cases in any cell

Question 12

How many degrees of freedom does a 3x3 bivariate table have?

Accepted Answer

A) 8 
B) 6 
C) 4 
D) 3 
A) 8 
B) 6 
C) 4 
D) 3

Question 13

Chi square is used to test relationships for their

Accepted Answer

A) empirical importance. 
B) logical importance. 
C) statistical significance. 
D) theoretical importance. 
A) empirical importance. 
B) logical importance. 
C) statistical significance. 
D) theoretical importance.

Question 14

In the chi square test of hypothesis,the null hypothesis states that the variables are

Accepted Answer

A) dependent. 
B) independent. 
C) causally related. 
D) non-random. 
A) dependent. 
B) independent. 
C) causally related. 
D) non-random.

Question 15

The value of the chi square test statistic is always

Accepted Answer

A) zero or a positive number. 
B) greater than the number of cells in the bivariate table. 
C) equal to or greater than the critical value. 
D) greater than the degrees of freedom. 
A) zero or a positive number. 
B) greater than the number of cells in the bivariate table. 
C) equal to or greater than the critical value. 
D) greater than the degrees of freedom.

Question 16

In the Chi square test for independence,the null hypothesis and the research hypothesis

Accepted Answer

A) always contradict each other. 
B) always agree with each other. 
C) are never actually stated. 
D) are usually both rejecteD. 
A) always contradict each other. 
B) always agree with each other. 
C) are never actually stated. 
D) are usually both rejecteD.

Question 17

The popularity of the Chi Square test is largely due to

Accepted Answer

A) easy computations. 
B) the fact that it can be computed only for interval-ratio level variables. 
C) the need to assume a normal sampling distribution. 
D) the relative ease with which the model assumptions can be satisfieD. 
A) easy computations. 
B) the fact that it can be computed only for interval-ratio level variables. 
C) the need to assume a normal sampling distribution. 
D) the relative ease with which the model assumptions can be satisfieD.

Question 18

To conduct a chi square test,the variables must first be organized into

Accepted Answer

A) a univariate table. 
B) a bivariate table. 
C) a list,which is then ranked. 
D) frequency distributions. 
A) a univariate table. 
B) a bivariate table. 
C) a list,which is then ranked. 
D) frequency distributions.

Question 19

In a 2x2 table,all cell frequencies are exactly the same.This is consistent with which of the following conditions?

Accepted Answer

A) the variables are both continuous 
B) the sample is a cluster sample 
C) the variables are independent 
D) the variables are dependent 
A) the variables are both continuous 
B) the sample is a cluster sample 
C) the variables are independent 
D) the variables are dependent

Question 20

A problem with large samples in the chi square test is that the test statistic

Accepted Answer

A) increases at the same rate as sample size and trivial relationships may seem important. 
B) decreases as sample size increases and may cause Type I errors. 
C) fluctuates so much that the results are completely unreliable. 
D) is always elevated above the neutral area. 
A) increases at the same rate as sample size and trivial relationships may seem important. 
B) decreases as sample size increases and may cause Type I errors. 
C) fluctuates so much that the results are completely unreliable. 
D) is always elevated above the neutral area.

In the Chi square test for independence,the research hypothesis is

In the Chi square test,degrees of freedom are

When the null hypothesis in the chi square test for independence is true,there should be

A researcher reports a c² (obtained)of 75.34 (a =.05,df = 1,c² (critical)= 3.84,N = 13,678).The researcher claims that the relationship is extremely significant.What issue should be raised?

The Chi square test is based on the assumption that

A bivariate table in which both variables have three categories has

For the chi square test using very large samples,there may be a difference between

Unlike other tests of significance,chi square is based on

Some potential difficulties arise in the chi square test when

If two variables are independent,the cell frequencies will be

Which pattern of cell frequencies in a 2x2 table would indicate that the variables are independent?

How many degrees of freedom does a 3x3 bivariate table have?

Chi square is used to test relationships for their

In the chi square test of hypothesis,the null hypothesis states that the variables are

The value of the chi square test statistic is always

In the Chi square test for independence,the null hypothesis and the research hypothesis

The popularity of the Chi Square test is largely due to

To conduct a chi square test,the variables must first be organized into

In a 2x2 table,all cell frequencies are exactly the same.This is consistent with which of the following conditions?

A problem with large samples in the chi square test is that the test statistic

Introduction

Basic Descriptive Statistics: Percentages Ratios and Rates Frequency Distributions

Charts and Graphs

Measures of Central Tendency

Measures of Dispersion

The Normal Curve

Introduction in Inferential Statistics, the Sampling Distribution, and Estimation

Hypothesis Testing I: the One-Sample Case

Hypothesis Testing II: the Two-Sample Case

Hypothesis Testing III: the Analysis of Variance

Introduction to Bivariate Association and Measures of Association for Variables Measured at the Nominal Level

Association Between Variables Measured at the Ordinal Level

Association Between Variables Measured at the Interval-Ratio Level

Partial Correlation and Multiple Regression and Correlation

Filters

Exam 11: Hypothesis Testing Iv: Chi Square

In the Chi square test for independence,the research hypothesis is

In the Chi square test,degrees of freedom are

When the null hypothesis in the chi square test for independence is true,there should be

A researcher reports a c2 (obtained)of 75.34 (a =.05,df = 1,c2 (critical)= 3.84,N = 13,678).The researcher claims that the relationship is extremely significant.What issue should be raised?

The Chi square test is based on the assumption that

A bivariate table in which both variables have three categories has

For the chi square test using very large samples,there may be a difference between

Unlike other tests of significance,chi square is based on

Some potential difficulties arise in the chi square test when

If two variables are independent,the cell frequencies will be

Which pattern of cell frequencies in a 2x2 table would indicate that the variables are independent?

How many degrees of freedom does a 3x3 bivariate table have?

Chi square is used to test relationships for their

In the chi square test of hypothesis,the null hypothesis states that the variables are

The value of the chi square test statistic is always

In the Chi square test for independence,the null hypothesis and the research hypothesis

The popularity of the Chi Square test is largely due to

To conduct a chi square test,the variables must first be organized into

In a 2x2 table,all cell frequencies are exactly the same.This is consistent with which of the following conditions?

A problem with large samples in the chi square test is that the test statistic

Introduction

Basic Descriptive Statistics: Percentages Ratios and Rates Frequency Distributions

Charts and Graphs

Measures of Central Tendency

Measures of Dispersion

The Normal Curve

Introduction in Inferential Statistics, the Sampling Distribution, and Estimation

Hypothesis Testing I: the One-Sample Case

Hypothesis Testing II: the Two-Sample Case

Hypothesis Testing III: the Analysis of Variance

Introduction to Bivariate Association and Measures of Association for Variables Measured at the Nominal Level

Association Between Variables Measured at the Ordinal Level

Association Between Variables Measured at the Interval-Ratio Level

Partial Correlation and Multiple Regression and Correlation

Filters

A researcher reports a c² (obtained)of 75.34 (a =.05,df = 1,c² (critical)= 3.84,N = 13,678).The researcher claims that the relationship is extremely significant.What issue should be raised?