Question 1

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 2

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 3

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 B in this example?

Accepted Answer

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

Question 4

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 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

Note: The critical F value for degrees of freedom (1,76)is 3.96.
The test for the "main effect" of Variable B focuses on the difference between the _________.

Accepted Answer

A) marginal means 10.2 and 6.5 
B) marginal means 9.8 and 6.9 
C) cell means 12.1 and 7.5 
D) cell means 12.1 and 8.3 
A) marginal means 10.2 and 6.5 
B) marginal means 9.8 and 6.9 
C) cell means 12.1 and 7.5 
D) cell means 12.1 and 8.3

Question 7

When a statistically significant _____ effect has only two levels,the nature of the relationship is determined in the same fashion as for the independent groups t test.

Accepted Answer

A) interaction 
B) simple 
C) main 
D) a and b 
A) interaction 
B) simple 
C) main 
D) a and b

Question 8

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 9

A significant main effect means that,collapsing across the levels of the other independent variable,the means for an independent variable are not all equal.

Accepted Answer

A) True 
 B)False

Question 10

When dealing with sample data,we can determine the existence of main effects and interactions in populations by mere visual inspection of sample means or slopes of lines in a graph.

Accepted Answer

A) True 
 B)False

Question 11

What are the assumptions of the F tests in two-way analysis of variance?

Accepted Answer

The F tests in a two-way between-subject

Question 12

In a two-way between subjects ANOVA,the dependent variable is quantitative and measured on a level that at least approximates an ____________________ level of measurement.

Accepted Answer

The answer of In a two-way between subjects ANOVA,the dependent...

Question 13

As the number of groups in the factorial design increases,homogeneity of population variances becomes increasingly problematic.

Accepted Answer

A) True 
 B)False

Question 14

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 15

In the modified Bonferroni procedure used for interaction comparisons,to be statistically significant,the largest F ratio must yield a p value

Accepted Answer

A) less than the overall alpha level divided by the total number of interaction comparisons. 
B) less than the overall alpha level divided by the total number of levels of factor A 
C) greater than the overall alpha level 
D) none of these 
A) less than the overall alpha level divided by the total number of interaction comparisons. 
B) less than the overall alpha level divided by the total number of levels of factor A 
C) greater than the overall alpha level 
D) none of these

Question 16

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 17

In two-way analysis of variance,each of the components of SSBETWEEN is multiplied by its respective degrees of freedom and the resulting mean squares,MSA,MSB,and MSAxB,are then divided by MSTOTAL to yield t ratios.

Accepted Answer

A) True 
 B)False

Question 18

The F ratio formed by SSA/SSWITHIN is used to test the null hypothesis with respect to:

Accepted Answer

A) factor A 
B) factor B 
C) factors A and B 
D) none of these 
A) factor A 
B) factor B 
C) factors A and B 
D) none of these

Question 19

A between-groups factorial ANOVA differs from a between-groups one-way ANOVA in which of the following ways?

Accepted Answer

A) two or more dependent variables are used. 
B) a factorial ANOVA may produce a negative F score. 
C) two or more independent variables are used. 
D) both a and b. 
A) two or more dependent variables are used. 
B) a factorial ANOVA may produce a negative F score. 
C) two or more independent variables are used. 
D) both a and b.

Question 20

When dealing with population means,if the lines in a graph are _____,this suggests the presence of an interaction.

Accepted Answer

A) not parallel 
B) parallel 
C) curvilinear 
D) none of these 
A) not parallel 
B) parallel 
C) curvilinear 
D) none of these

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.

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

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 B in this example?

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 _.

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

Note: The critical F value for degrees of freedom (1,76)is 3.96. The test for the "main effect" of Variable B focuses on the difference between the _________.

When a statistically significant _____ effect has only two levels,the nature of the relationship is determined in the same fashion as for the independent groups t test.

The nature of an interaction can be determined by ___.

A significant main effect means that,collapsing across the levels of the other independent variable,the means for an independent variable are not all equal.

When dealing with sample data,we can determine the existence of main effects and interactions in populations by mere visual inspection of sample means or slopes of lines in a graph.

What are the assumptions of the F tests in two-way analysis of variance?

In a two-way between subjects ANOVA,the dependent variable is quantitative and measured on a level that at least approximates an ____________________ level of measurement.

As the number of groups in the factorial design increases,homogeneity of population variances becomes increasingly problematic.

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?

In the modified Bonferroni procedure used for interaction comparisons,to be statistically significant,the largest F ratio must yield a p value

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

In two-way analysis of variance,each of the components of SS_BETWEEN is multiplied by its respective degrees of freedom and the resulting mean squares,MS_A,MS_B,and MS_AxB,are then divided by MS_TOTAL to yield t ratios.

The F ratio formed by SS_A/SS_WITHIN is used to test the null hypothesis with respect to:

A between-groups factorial ANOVA differs from a between-groups one-way ANOVA in which of the following ways?

When dealing with population means,if the lines in a graph are _____,this suggests the presence of an interaction.

Introduction and Mathematical Preliminaries

Frequency and Probability Distributions

Measures of Central Tendency and Variability

Percentiles,percentile Ranks,standard Scores,and the Normal Distribution

Pearson Correlation and Regression: Descriptive Aspects

Probability

Estimation and Sampling Distributions

Hypothesis Testing: Inferences About a Single Mean

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 16: Two-Way Between-Subjects Analysis of Variance

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.

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

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 B in this example?

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 _____.

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

Note: The critical F value for degrees of freedom (1,76)is 3.96. The test for the "main effect" of Variable B focuses on the difference between the _________.

When a statistically significant _____ effect has only two levels,the nature of the relationship is determined in the same fashion as for the independent groups t test.

The nature of an interaction can be determined by ___.

A significant main effect means that,collapsing across the levels of the other independent variable,the means for an independent variable are not all equal.

When dealing with sample data,we can determine the existence of main effects and interactions in populations by mere visual inspection of sample means or slopes of lines in a graph.

What are the assumptions of the F tests in two-way analysis of variance?

In a two-way between subjects ANOVA,the dependent variable is quantitative and measured on a level that at least approximates an ____________________ level of measurement.

As the number of groups in the factorial design increases,homogeneity of population variances becomes increasingly problematic.

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?

In the modified Bonferroni procedure used for interaction comparisons,to be statistically significant,the largest F ratio must yield a p value

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

In two-way analysis of variance,each of the components of SSBETWEEN is multiplied by its respective degrees of freedom and the resulting mean squares,MSA,MSB,and MSAxB,are then divided by MSTOTAL to yield t ratios.

The F ratio formed by SSA/SSWITHIN is used to test the null hypothesis with respect to:

A between-groups factorial ANOVA differs from a between-groups one-way ANOVA in which of the following ways?

When dealing with population means,if the lines in a graph are _____,this suggests the presence of an interaction.

Introduction and Mathematical Preliminaries

Frequency and Probability Distributions

Measures of Central Tendency and Variability

Percentiles,percentile Ranks,standard Scores,and the Normal Distribution

Pearson Correlation and Regression: Descriptive Aspects

Probability

Estimation and Sampling Distributions

Hypothesis Testing: Inferences About a Single Mean

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 _.

In two-way analysis of variance,each of the components of SS_BETWEEN is multiplied by its respective degrees of freedom and the resulting mean squares,MS_A,MS_B,and MS_AxB,are then divided by MS_TOTAL to yield t ratios.

The F ratio formed by SS_A/SS_WITHIN is used to test the null hypothesis with respect to: