Exam 15: Chi-Square Test

Since all discrepancies from the expected frequencies are reflected in the upper tail of the chi-square distribution (as defined by the critical value),the chi-square test is nondirectional.

(True/False)

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Question 61

Which of the following is the definition of the chi-square statistic?

(Multiple Choice)

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Question 62

As the degrees of freedom increase,the shape of the sampling distribution of the chi-square statistic will become more _____.

(Multiple Choice)

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Question 63

Yates' correction for continuity involves subtracting .5 from the absolute value of O_j - E_j before these quantities are squared,divided by E_j,and summed across cells.

(True/False)

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Question 64

Although the issue is controversial,statisticians generally recommend that the lowest _ one should have in order to use the chi-square statistic is somewhere around _.

(Multiple Choice)

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Question 65

Research has found that Fisher's Exact Test,an alternative method for testing the relationship between two variables in 2 X 2 tables,is less powerful than the chi-square test.

(True/False)

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Question 66

Why is it necessary to conduct follow-up tests in a chi square analysis in order to determine the nature of the relationship?

(Essay)

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Question 67

The chi-square test is a parametric statistical test.

(True/False)

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Question 68

16.c² (1,N = 200)= 12.89,p < .05.What is the value for the degrees of freedom?

(Multiple Choice)

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Question 69

The power of the chi-square test is further reduced when quantitative variables are collapsed into categories because _____ by placing individuals with different scores into the same group.

(Multiple Choice)

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Question 70

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. Calculate the value for Cramer's statistic.

(Short Answer)

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Question 71

To assess the strength of the relationship,Cramer's statistic is used when _,and the fourfold point correlation coefficient is used when _.

(Multiple Choice)

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Question 72

When the marginal frequencies are random for one variable and fixed for the other,the analytical procedure is referred to as the ____________________.

(Short Answer)

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Question 73

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.

(True/False)

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Question 74

Each unique combination of _ in a contingency table is referred to as a(n)_.

(Multiple Choice)

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Question 75

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.

(Multiple Choice)

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Question 76

As degrees of freedom for the sampling distribution of the chi-square statistic decreases the sampling distribution becomes

(Multiple Choice)

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Question 77

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

(Multiple Choice)

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Question 78

The entries within the cells of a contingency table represent the number of individuals in the sample who are characterized by the corresponding levels of the _ and are referred to as _.

(Multiple Choice)

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Question 79

Which of the following is not an assumption of the chi-square test?

(Multiple Choice)

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Question 80

Showing 61 - 80 of 145

Since all discrepancies from the expected frequencies are reflected in the upper tail of the chi-square distribution (as defined by the critical value),the chi-square test is nondirectional.

Which of the following is the definition of the chi-square statistic?

As the degrees of freedom increase,the shape of the sampling distribution of the chi-square statistic will become more _____.

Yates' correction for continuity involves subtracting .5 from the absolute value of O_j - E_j before these quantities are squared,divided by E_j,and summed across cells.

Although the issue is controversial,statisticians generally recommend that the lowest _ one should have in order to use the chi-square statistic is somewhere around _.

Research has found that Fisher's Exact Test,an alternative method for testing the relationship between two variables in 2 X 2 tables,is less powerful than the chi-square test.

Why is it necessary to conduct follow-up tests in a chi square analysis in order to determine the nature of the relationship?

The chi-square test is a parametric statistical test.

16.c² (1,N = 200)= 12.89,p < .05.What is the value for the degrees of freedom?

The power of the chi-square test is further reduced when quantitative variables are collapsed into categories because _____ by placing individuals with different scores into the same group.

To assess the strength of the relationship,Cramer's statistic is used when _,and the fourfold point correlation coefficient is used when _.

When the marginal frequencies are random for one variable and fixed for the other,the analytical procedure is referred to as the ____________________.

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.

Each unique combination of _ in a contingency table is referred to as a(n)_.

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 degrees of freedom for the sampling distribution of the chi-square statistic decreases the sampling distribution becomes

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

The entries within the cells of a contingency table represent the number of individuals in the sample who are characterized by the corresponding levels of the _ and are referred to as _.

Which of the following is not an assumption of the chi-square test?

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

Since all discrepancies from the expected frequencies are reflected in the upper tail of the chi-square distribution (as defined by the critical value),the chi-square test is nondirectional.

Which of the following is the definition of the chi-square statistic?

As the degrees of freedom increase,the shape of the sampling distribution of the chi-square statistic will become more _____.

Yates' correction for continuity involves subtracting .5 from the absolute value of Oj - Ej before these quantities are squared,divided by Ej,and summed across cells.

Although the issue is controversial,statisticians generally recommend that the lowest _____ one should have in order to use the chi-square statistic is somewhere around _____.

Research has found that Fisher's Exact Test,an alternative method for testing the relationship between two variables in 2 X 2 tables,is less powerful than the chi-square test.

Why is it necessary to conduct follow-up tests in a chi square analysis in order to determine the nature of the relationship?

The chi-square test is a parametric statistical test.

16.c2 (1,N = 200)= 12.89,p < .05.What is the value for the degrees of freedom?

The power of the chi-square test is further reduced when quantitative variables are collapsed into categories because _____ by placing individuals with different scores into the same group.

To assess the strength of the relationship,Cramer's statistic is used when _____,and the fourfold point correlation coefficient is used when _____.

When the marginal frequencies are random for one variable and fixed for the other,the analytical procedure is referred to as the ____________________.

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.

Each unique combination of _____ in a contingency table is referred to as a(n)_____.

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 degrees of freedom for the sampling distribution of the chi-square statistic decreases the sampling distribution becomes

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

The entries within the cells of a contingency table represent the number of individuals in the sample who are characterized by the corresponding levels of the _____ and are referred to as _____.

Which of the following is not an assumption of the chi-square test?

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

Yates' correction for continuity involves subtracting .5 from the absolute value of O_j - E_j before these quantities are squared,divided by E_j,and summed across cells.

Although the issue is controversial,statisticians generally recommend that the lowest _ one should have in order to use the chi-square statistic is somewhere around _.

16.c² (1,N = 200)= 12.89,p < .05.What is the value for the degrees of freedom?

To assess the strength of the relationship,Cramer's statistic is used when _,and the fourfold point correlation coefficient is used when _.

Each unique combination of _ in a contingency table is referred to as a(n)_.

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.

The entries within the cells of a contingency table represent the number of individuals in the sample who are characterized by the corresponding levels of the _ and are referred to as _.