Question 1

The Wilcoxon matched-pairs test utilizes ranks.

Accepted Answer

A) True 
 B)False

Question 2

The Wilcoxon matched-pairs test is used when:

Accepted Answer

A)  There is one IV with two levels 
B)  Participants undergo both conditions 
C)  There have been violations of assumptions of the t test for correlated samples 
D)  All of the above 
A)  There is one IV with two levels 
B)  Participants undergo both conditions 
C)  There have been violations of assumptions of the t test for correlated samples 
D)  All of the above

Question 3

Dr. Dread teaches one group of students with a standard lecture format whereas the other class is taught using a group discussion and cooperative learning approach. He gives a cumulative final exam at the end of the term that is scored pass of fail. Which of the following statements is true of Dr. Dread's approach?

Accepted Answer

A)  His use of nominal outcome data represents a loss of information in comparison to an alternative method that uses ordinal level data 
B)  There are multiple levels of the IV 
C)  The IV and DV are both categorical 
D)  a and c 
A)  His use of nominal outcome data represents a loss of information in comparison to an alternative method that uses ordinal level data 
B)  There are multiple levels of the IV 
C)  The IV and DV are both categorical 
D)  a and c

Question 4

The matching procedure can be used to circumvent carryover effects with repeated-measures designs.

Accepted Answer

A) True 
 B)False

Question 5

With repeated-measures designs, error variance is reduced because the same participant is experiencing each of the conditions.

Accepted Answer

A) True 
 B)False

Question 6

Professor U. R. Okay wanted to find a way to decrease bullying and increase peer acceptance among 4th graders. He matched 10 triads of children in terms of their peer popularity, and then randomly assigned one member of each triad to a social skills training program, another to a group discussion that focused on changing peer reputation, and the third member of each triad was in the control group. After 3 months, he measured whether the children were popular or rejected. The statistical approach he should use is:

Accepted Answer

A)  McNemar test 
B)  an ANOVA (F test) 
C)  Wilcoxon Sign test 
D)  Cochran Q test 
E)  Friedman two-way analysis of variance 
A)  McNemar test 
B)  an ANOVA (F test) 
C)  Wilcoxon Sign test 
D)  Cochran Q test 
E)  Friedman two-way analysis of variance

Question 7

A single -actor within-subjects design can be used with the following research approaches:

Accepted Answer

A)  Associational 
B)  Comparative 
C)  Quasi-experimental 
D)  b and c 
E)  All of the above 
A)  Associational 
B)  Comparative 
C)  Quasi-experimental 
D)  b and c 
E)  All of the above

Question 8

Nonparametric statistics are used with single-factor between-groups designs when:

Accepted Answer

A)  Assumptions of normality are violated 
B)  The dependent variable is normally distributed 
C)  The dependent variable is at least interval level 
D)  All of the above 
A)  Assumptions of normality are violated 
B)  The dependent variable is normally distributed 
C)  The dependent variable is at least interval level 
D)  All of the above

Question 9

The ANOVA is used to compare the variability between groups to the variability within groups.

Accepted Answer

A) True 
 B)False

Question 10

The single-factor ANOVA should be used when:

Accepted Answer

A)  The hypothesis being tested is nondirectional and the dependent variable is nominal 
B)  The hypothesis being tested is directional with at least 2 levels to the IV 
C)  The hypothesis being tested is nondirectional with at least 2 levels to the IV 
D)  The hypothesis being tested is directional with at least 3 levels to the IV 
A)  The hypothesis being tested is nondirectional and the dependent variable is nominal 
B)  The hypothesis being tested is directional with at least 2 levels to the IV 
C)  The hypothesis being tested is nondirectional with at least 2 levels to the IV 
D)  The hypothesis being tested is directional with at least 3 levels to the IV

Question 11

When an F statistic is significant, a post hoc test must be performed when the independent variable has more than two levels.

Accepted Answer

A) True 
 B)False

Question 12

A researcher analyzes her data using a one-way ANOVA. When would she use post-hoc comparisons?

Accepted Answer

A)  The F value is significant and there are more than two groups being compared 
B)  The F value is significant and there are two groups being compared 
C)  The F value is nonsignificant and there are 3 or more groups being compared 
D)  a and b 
A)  The F value is significant and there are more than two groups being compared 
B)  The F value is significant and there are two groups being compared 
C)  The F value is nonsignificant and there are 3 or more groups being compared 
D)  a and b

Question 13

A repeated-measures design will decrease sample size and decrease error variance.

Accepted Answer

A) True 
 B)False

Question 14

Levene's test should be used to determine if the assumption of homogeneity of variance has been violated when doing comparative statistics.

Accepted Answer

A) True 
 B)False

The Wilcoxon matched-pairs test utilizes ranks.

The Wilcoxon matched-pairs test is used when:

The matching procedure can be used to circumvent carryover effects with repeated-measures designs.

With repeated-measures designs, error variance is reduced because the same participant is experiencing each of the conditions.

A single -actor within-subjects design can be used with the following research approaches:

Nonparametric statistics are used with single-factor between-groups designs when:

The ANOVA is used to compare the variability between groups to the variability within groups.

The single-factor ANOVA should be used when:

When an F statistic is significant, a post hoc test must be performed when the independent variable has more than two levels.

A researcher analyzes her data using a one-way ANOVA. When would she use post-hoc comparisons?

A repeated-measures design will decrease sample size and decrease error variance.

Levene's test should be used to determine if the assumption of homogeneity of variance has been violated when doing comparative statistics.

Definitions, Purposes, and Dimensions of Research

Planning a Quantitative Research Project

Variables, Research Questions, and Hypotheses

Research Approaches

Randomized Experimental and Quasi-Experimental Designs

Single-Subject Designs

Nonexperimental Approachesdesigns

Internal Validity

Sampling and Introduction to External Validity

Measurement and Descriptive Statistics

Measurement Reliability

Measurement Validity

Types of Data Collection Techniques

Ethical Issues in Conducting the Study

Practical Issues in Data Collection and Coding

Making Inferences From Sample Data I: The Null Hypothesis Significance Testing Approach

Making Inferences From Sample Data II: the Evidence-Based Approach

General Design Classifications for Selection of Difference Statistical Methods

Selection of Appropriate Statistical Methods: Integration of Design and Analysis

Analysis and Interpretation of Basic Associational Research Questions

Analysis and Interpretation of Complex Research Questions

Evaluating Research Validity: Part I

Evaluating Research Validity: Part II

Evaluating Research for Evidence-Based Practice

Writing the Research Report

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Exam 20: Data Analysis and Interpretation: Basic Difference Questions

The Wilcoxon matched-pairs test utilizes ranks.

The Wilcoxon matched-pairs test is used when:

The matching procedure can be used to circumvent carryover effects with repeated-measures designs.

With repeated-measures designs, error variance is reduced because the same participant is experiencing each of the conditions.

A single -actor within-subjects design can be used with the following research approaches:

Nonparametric statistics are used with single-factor between-groups designs when:

The ANOVA is used to compare the variability between groups to the variability within groups.

The single-factor ANOVA should be used when:

When an F statistic is significant, a post hoc test must be performed when the independent variable has more than two levels.

A researcher analyzes her data using a one-way ANOVA. When would she use post-hoc comparisons?

A repeated-measures design will decrease sample size and decrease error variance.

Levene's test should be used to determine if the assumption of homogeneity of variance has been violated when doing comparative statistics.

Definitions, Purposes, and Dimensions of Research

Planning a Quantitative Research Project

Variables, Research Questions, and Hypotheses

Research Approaches

Randomized Experimental and Quasi-Experimental Designs

Single-Subject Designs

Nonexperimental Approachesdesigns

Internal Validity

Sampling and Introduction to External Validity

Measurement and Descriptive Statistics

Measurement Reliability

Measurement Validity

Types of Data Collection Techniques

Ethical Issues in Conducting the Study

Practical Issues in Data Collection and Coding

Making Inferences From Sample Data I: The Null Hypothesis Significance Testing Approach

Making Inferences From Sample Data II: the Evidence-Based Approach

General Design Classifications for Selection of Difference Statistical Methods

Selection of Appropriate Statistical Methods: Integration of Design and Analysis

Analysis and Interpretation of Basic Associational Research Questions

Analysis and Interpretation of Complex Research Questions

Evaluating Research Validity: Part I

Evaluating Research Validity: Part II

Evaluating Research for Evidence-Based Practice

Writing the Research Report

Filters