Question 1

As with one-way analysis of variance,under certain conditions the F tests are robust to violations of the _____ assumption.

Accepted Answer

A) normality 
B) homogeneity of variance 
C) a and b 
D) neither a nor b 
A) normality 
B) homogeneity of variance 
C) a and b 
D) neither a nor b

Question 2

Assume the following is a population means table:  
Using your knowledge of general patterns of plotted means in a two-way ANOVA,does there appear to be a main effect of variable A in this example?(Hint: Graphing the means might help. )

Accepted Answer

A) Yes 
B) No 
C) Not enough information 
A) Yes 
B) No 
C) Not enough information

Question 3

Which of the following is not a requirement for use of a two-way between-subjects factorial ANOVA?

Accepted Answer

A) The dependent variable is quantitative in nature. 
B) The independent variables are each between-subjects in nature. 
C) The dependent variable must be measured on a nominal level 
D) The independent variables are combined to form a factorial design. 
A) The dependent variable is quantitative in nature. 
B) The independent variables are each between-subjects in nature. 
C) The dependent variable must be measured on a nominal level 
D) The independent variables are combined to form a factorial design.

Question 4

When dealing with sample data,the existence of a given population main effect or interaction can be affirmed only by a:

Accepted Answer

A) visual inspection of sample means 
B) visual inspection of slopes 
C) significant statistical test 
A) visual inspection of sample means 
B) visual inspection of slopes 
C) significant statistical test

Question 5

When graphing sample means,nonparallel lines may indicate the existence of an interaction,or may indicate sampling error.

Accepted Answer

A) True 
 B)False

Question 6

Due to the role of sampling error,nonequivalent sample means do not necessarily indicate nonequivalent population means.

Accepted Answer

A) True 
 B)False

Question 7

Assuming there are unequal numbers of subjects in each group,the main effect means can be calculated by taking the sum of the two cells in a given column.

Accepted Answer

A) True 
 B)False

Question 8

Interaction comparisons focus on _____ within a factorial design.

Accepted Answer

A) simple main effects 
B) a priori effects 
C) main effects 
D) 2 X 2 subtables 
A) simple main effects 
B) a priori effects 
C) main effects 
D) 2 X 2 subtables

Question 9

An interaction effect refers to the case where the nature or strength of the relationship between one of the independent variables and the dependent variable differs as a function of the:

Accepted Answer

A) sample size 
B) number of variables 
C) dependent variable 
D) other independent variable 
A) sample size 
B) number of variables 
C) dependent variable 
D) other independent variable

Question 10

Dr.Fleet is interested in studying the effect of gender,years of undergraduate college (0-4 years),and marital status (single,married,divorced,or widowed.on the annual income of residents of the northeastern United States.Which of the following describes a design that she might use?

Accepted Answer

A) 2 x 2 factorial design 
B) 2 x 5 x 4 factorial design 
C) 2 x 2 repeated-measures design 
D) 2 x 2 x 2 factorial design 
A) 2 x 2 factorial design 
B) 2 x 5 x 4 factorial design 
C) 2 x 2 repeated-measures design 
D) 2 x 2 x 2 factorial design

Question 11

The F ratio is calculated by dividing the mean square for the effect (either A,B,or AxB)by the ____________________.

Accepted Answer

The answer of The F ratio is calculated by dividing...

Question 12

The nature of an interaction can be determined by ___.

Accepted Answer

A) eta2 
B) interaction comparisons 
C) simple main effects 
D) both b and c 
A) eta2 
B) interaction comparisons 
C) simple main effects 
D) both b and c

Question 13

If the ANOVA method is used to test for differences between means,then why is it called an "analysis of variance"?

Accepted Answer

A) Because the amount differences among the set of group means is determined by calculating the variance of those group means. 
B) Because means and variances are basically the same thing. 
C) Because statisticians feel it is important to have multiple names for the same thing. 
D) Because the differences between means is determined by averaging the variances. 
A) Because the amount differences among the set of group means is determined by calculating the variance of those group means. 
B) Because means and variances are basically the same thing. 
C) Because statisticians feel it is important to have multiple names for the same thing. 
D) Because the differences between means is determined by averaging the variances.

Question 14

The joint effect of two independent variables on a dependent variable is indicated by the ____ effect when a two-way factorial analysis is used.

Accepted Answer

A) main 
B) simple 
C) significant 
D) interaction 
A) main 
B) simple 
C) significant 
D) interaction

Question 15

When dealing with population means,the determination of whether an interaction is present is most readily made by examining the slopes of the lines in a given graph.

Accepted Answer

A) True 
 B)False

Question 16

The test of the null hypothesis for the main effect of factor A is made with reference to the F value derived from SSA/MSA.

Accepted Answer

A) True 
 B)False

Question 17

The two-way between-subjects ANOVA is appropriate for use with a dependent variable that is quantitative or qualitative.

Accepted Answer

A) True 
 B)False

Question 18

A classmate describes her study as follows: "I have to independent variables,one has three levels and the other has two levels.I will be randomly assigning people to one of the study groups,exposing them to one level of each independent variable,then testing them on my dependent variable." Which type of statistical analysis would be most appropriate?

Accepted Answer

A) two-way mixed model analysis of variance 
B) one-way repeated measures analysis of variance. 
C) 3 X 2 within-subjects analysis of variance. 
D) 3 X 2 between-subjects analysis of variance. 
A) two-way mixed model analysis of variance 
B) one-way repeated measures analysis of variance. 
C) 3 X 2 within-subjects analysis of variance. 
D) 3 X 2 between-subjects analysis of variance.

Question 19

A problem with the strategy of examining all possible 2 X 2 subtables following a significant interaction is that it does not adequately control the _____ at _____.

Accepted Answer

A) experimentwise error rate;á 
B) experimentwise error rate;â 
C) Type II error rate;á 
D) Type II error rate;â 
A) experimentwise error rate;á 
B) experimentwise error rate;â 
C) Type II error rate;á 
D) Type II error rate;â

Question 20

An advantage of the two-way ANOVA is that we can study the joint effects of two variables.

Accepted Answer

A) True 
 B)False

As with one-way analysis of variance,under certain conditions the F tests are robust to violations of the _____ assumption.

Assume the following is a population means table: Using your knowledge of general patterns of plotted means in a two-way ANOVA,does there appear to be a main effect of variable A in this example?(Hint: Graphing the means might help. )

Which of the following is not a requirement for use of a two-way between-subjects factorial ANOVA?

When dealing with sample data,the existence of a given population main effect or interaction can be affirmed only by a:

When graphing sample means,nonparallel lines may indicate the existence of an interaction,or may indicate sampling error.

Due to the role of sampling error,nonequivalent sample means do not necessarily indicate nonequivalent population means.

Assuming there are unequal numbers of subjects in each group,the main effect means can be calculated by taking the sum of the two cells in a given column.

Interaction comparisons focus on _____ within a factorial design.

An interaction effect refers to the case where the nature or strength of the relationship between one of the independent variables and the dependent variable differs as a function of the:

Dr.Fleet is interested in studying the effect of gender,years of undergraduate college (0-4 years),and marital status (single,married,divorced,or widowed.on the annual income of residents of the northeastern United States.Which of the following describes a design that she might use?

The F ratio is calculated by dividing the mean square for the effect (either A,B,or AxB)by the ____________________.

The nature of an interaction can be determined by ___.

If the ANOVA method is used to test for differences between means,then why is it called an "analysis of variance"?

The joint effect of two independent variables on a dependent variable is indicated by the ____ effect when a two-way factorial analysis is used.

When dealing with population means,the determination of whether an interaction is present is most readily made by examining the slopes of the lines in a given graph.

The test of the null hypothesis for the main effect of factor A is made with reference to the F value derived from SS_A/MS_A.

The two-way between-subjects ANOVA is appropriate for use with a dependent variable that is quantitative or qualitative.

A problem with the strategy of examining all possible 2 X 2 subtables following a significant interaction is that it does not adequately control the _ at _.

An advantage of the two-way ANOVA is that we can study the joint effects of two variables.

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

Chi-Square Test

Nonparametric Statistics

Overview and Extension: Statistical Tests for More Complex Designs

Filters

Exam 17: Two-Way Between-Subjects Analysis of Variance

As with one-way analysis of variance,under certain conditions the F tests are robust to violations of the _____ assumption.

Assume the following is a population means table: Using your knowledge of general patterns of plotted means in a two-way ANOVA,does there appear to be a main effect of variable A in this example?(Hint: Graphing the means might help. )

Which of the following is not a requirement for use of a two-way between-subjects factorial ANOVA?

When dealing with sample data,the existence of a given population main effect or interaction can be affirmed only by a:

When graphing sample means,nonparallel lines may indicate the existence of an interaction,or may indicate sampling error.

Due to the role of sampling error,nonequivalent sample means do not necessarily indicate nonequivalent population means.

Assuming there are unequal numbers of subjects in each group,the main effect means can be calculated by taking the sum of the two cells in a given column.

Interaction comparisons focus on _____ within a factorial design.

An interaction effect refers to the case where the nature or strength of the relationship between one of the independent variables and the dependent variable differs as a function of the:

Dr.Fleet is interested in studying the effect of gender,years of undergraduate college (0-4 years),and marital status (single,married,divorced,or widowed.on the annual income of residents of the northeastern United States.Which of the following describes a design that she might use?

The F ratio is calculated by dividing the mean square for the effect (either A,B,or AxB)by the ____________________.

The nature of an interaction can be determined by ___.

If the ANOVA method is used to test for differences between means,then why is it called an "analysis of variance"?

The joint effect of two independent variables on a dependent variable is indicated by the ____ effect when a two-way factorial analysis is used.

When dealing with population means,the determination of whether an interaction is present is most readily made by examining the slopes of the lines in a given graph.

The test of the null hypothesis for the main effect of factor A is made with reference to the F value derived from SSA/MSA.

The two-way between-subjects ANOVA is appropriate for use with a dependent variable that is quantitative or qualitative.

A problem with the strategy of examining all possible 2 X 2 subtables following a significant interaction is that it does not adequately control the _____ at _____.

An advantage of the two-way ANOVA is that we can study the joint effects of two variables.

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

Chi-Square Test

Nonparametric Statistics

Overview and Extension: Statistical Tests for More Complex Designs

Filters

The test of the null hypothesis for the main effect of factor A is made with reference to the F value derived from SS_A/MS_A.

A problem with the strategy of examining all possible 2 X 2 subtables following a significant interaction is that it does not adequately control the _ at _.