Question 1

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

Accepted Answer

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

Question 2

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

Accepted Answer

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

Question 3

For Chi square, a small sample is one in which________.

Accepted Answer

A)  many expected frequencies are less than 5. 
B)  many observed frequencies are less than 5. 
C)  N is less than 100. 
D)  N is less than 50. 
A)  many expected frequencies are less than 5. 
B)  many observed frequencies are less than 5. 
C)  N is less than 100. 
D)  N is less than 50.

Question 4

Chi square is one of a class of statistics called________.

Accepted Answer

A)  nonparametric. 
B)  parametric. 
C)  semi-parametric. 
D)  parametrically symmetrical. 
A)  nonparametric. 
B)  parametric. 
C)  semi-parametric. 
D)  parametrically symmetrical.

Question 5

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.

Question 6

The chi square goodness-of-fit test can be used when________.

Accepted Answer

A)  degrees of freedom are less than one. 
B)  column percentages are equal. 
C)  sample size is very large. 
D)  the distribution of a single variable must be tested for significance. 
A)  degrees of freedom are less than one. 
B)  column percentages are equal. 
C)  sample size is very large. 
D)  the distribution of a single variable must be tested for significance.

Question 7

In a research study conducted to determine if arrests were related to the socioeconomic class of the offender, the chi square critical score was 9.488 and the chi square test statistic was 12.2. We can conclude that________.

Accepted Answer

A)  the variables are independent. 
B)  being in a certain socioeconomic class causes arrests. 
C)  the variables are dependent. 
D)  the probability of getting these results by random chance alone is 0.5. 
A)  the variables are independent. 
B)  being in a certain socioeconomic class causes arrests. 
C)  the variables are dependent. 
D)  the probability of getting these results by random chance alone is 0.5.

Question 8

Yate's correction for small sample size________.

Accepted Answer

A)  reduces the value of the difference between f o and f e by .5 before squaring. 
B)  increases the value of the difference between f o and f e by .5 before squaring. 
C)  reduces the degrees of freedom by one half. 
D)  increases the degrees of freedom by one half. 
A)  reduces the value of the difference between f o and f e by .5 before squaring. 
B)  increases the value of the difference between f o and f e by .5 before squaring. 
C)  reduces the degrees of freedom by one half. 
D)  increases the degrees of freedom by one half.

Question 9

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 10

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.

Question 11

In a 2x2 table, if one cell frequency is known,________.

Accepted Answer

A)  all other cell frequencies are determined. 
B)  two other cell frequencies are determined. 
C)  one other cell frequency is determined. 
D)  none of the other cell frequencies is determined. 
A)  all other cell frequencies are determined. 
B)  two other cell frequencies are determined. 
C)  one other cell frequency is determined. 
D)  none of the other cell frequencies is determined.

Question 12

An obtained chi square of 10.78 has been calculated. Critical Chi square is 3.841. What should be concluded?________.

Accepted Answer

A)  Nothing -- information is incomplete 
B)  Reject the null hypothesis, the variables are not independent 
C)  Reject the null hypothesis, the variables are independent 
D)  Fail to reject the null hypothesis 
A)  Nothing -- information is incomplete 
B)  Reject the null hypothesis, the variables are not independent 
C)  Reject the null hypothesis, the variables are independent 
D)  Fail to reject the null hypothesis

Question 13

In order to identify the pattern of the relationship in a bivariate table, we need to compute________.

Accepted Answer

A)  row percentages. 
B)  column percentages. 
C)  total percentages. 
D)  row proportions. 
A)  row percentages. 
B)  column percentages. 
C)  total percentages. 
D)  row proportions.

Question 14

The chi square test is frequently used because it is relatively easy to satisfy the model assumptions (step 1 of the five-step model). These assumptions require, in the case of chi square,________.

Accepted Answer

A)  a normal population distribution. 
B)  no assumption about the shape of the sampling distribution. 
C)  expected frequencies of equal value. 
D)  a difference in expected and observed frequencies. 
A)  a normal population distribution. 
B)  no assumption about the shape of the sampling distribution. 
C)  expected frequencies of equal value. 
D)  a difference in expected and observed frequencies.

Question 15

In the Chi square test, degrees of freedom are________.

Accepted Answer

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

Question 16

In the context of chi square, variables are independent if________.

Accepted Answer

A)  they are related. 
B)  cause and effect can be proved. 
C)  the obtained chi square falls in the critical region. 
D)  the score of a case on one variable has no effect on the score of the case on the other variable. 
A)  they are related. 
B)  cause and effect can be proved. 
C)  the obtained chi square falls in the critical region. 
D)  the score of a case on one variable has no effect on the score of the case on the other variable.

Question 17

The subtotals calculated for bivariate tables are also known as________.

Accepted Answer

A)  expected frequencies. 
B)  marginals. 
C)  observed frequencies. 
D)  cells. 
A)  expected frequencies. 
B)  marginals. 
C)  observed frequencies. 
D)  cells.

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

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

For Chi square, a small sample is one in which________.

Chi square is one of a class of statistics called________.

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

The chi square goodness-of-fit test can be used when________.

In a research study conducted to determine if arrests were related to the socioeconomic class of the offender, the chi square critical score was 9.488 and the chi square test statistic was 12.2. We can conclude that________.

Yate's correction for small sample size________.

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

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

In a 2x2 table, if one cell frequency is known,________.

An obtained chi square of 10.78 has been calculated. Critical Chi square is 3.841. What should be concluded?________.

In order to identify the pattern of the relationship in a bivariate table, we need to compute________.

The chi square test is frequently used because it is relatively easy to satisfy the model assumptions (step 1 of the five-step model). These assumptions require, in the case of chi square,________.

In the Chi square test, degrees of freedom are________.

In the context of chi square, variables are independent if________.

The subtotals calculated for bivariate tables are also known as________.

Introduction

Basic Descriptive Statistics Tables Percentages Rates and Ratios and Graphs

Measures of Central Tendency

Measures of Variation

The Normal Curve

Introduction to Inferential Statistics Sampling and the Sampling Distribution

Estimation Procedures

Hypothesis Testing I the One Sample Case

Hypothesis Testing Ii the Two Sample Case

Hypothesis Testing Iii the Analysis of Variance

Bivariate Association for Nominal and Ordinal Level Variables

Association Between Variables Measured at the Interval Ratio Level

Elaborating Bivariate Tables

Partial Correlation and Multiple Regression and Correlation

Filters

Exam 11: Hypothesis Testing Iv Chi Square

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

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

For Chi square, a small sample is one in which________.

Chi square is one of a class of statistics called________.

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

The chi square goodness-of-fit test can be used when________.

In a research study conducted to determine if arrests were related to the socioeconomic class of the offender, the chi square critical score was 9.488 and the chi square test statistic was 12.2. We can conclude that________.

Yate's correction for small sample size________.

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

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

In a 2x2 table, if one cell frequency is known,________.

An obtained chi square of 10.78 has been calculated. Critical Chi square is 3.841. What should be concluded?________.

In order to identify the pattern of the relationship in a bivariate table, we need to compute________.

The chi square test is frequently used because it is relatively easy to satisfy the model assumptions (step 1 of the five-step model). These assumptions require, in the case of chi square,________.

In the Chi square test, degrees of freedom are________.

In the context of chi square, variables are independent if________.

The subtotals calculated for bivariate tables are also known as________.

Introduction

Basic Descriptive Statistics Tables Percentages Rates and Ratios and Graphs

Measures of Central Tendency

Measures of Variation

The Normal Curve

Introduction to Inferential Statistics Sampling and the Sampling Distribution

Estimation Procedures

Hypothesis Testing I the One Sample Case

Hypothesis Testing Ii the Two Sample Case

Hypothesis Testing Iii the Analysis of Variance

Bivariate Association for Nominal and Ordinal Level Variables

Association Between Variables Measured at the Interval Ratio Level

Elaborating Bivariate Tables

Partial Correlation and Multiple Regression and Correlation

Filters