Question 1

In a two-way ANOVA,the _____ is further partitioned into three components,SSA,SSB,and SSAxB.

Accepted Answer

A) SSWITHIN 
B) SSTOTAL 
C) SSBETWEEN 
D) SSERROR 
A) SSWITHIN 
B) SSTOTAL 
C) SSBETWEEN 
D) SSERROR

Question 2

Discuss the robustness of the F tests in two-way analysis of variance.

Accepted Answer

For the F tests to be valid,it is import

Question 3

How many groups of individuals would be included in a 4 x 2 factorial design?

Accepted Answer

A) 2 
B) 4 
C) 6 
D) 8 
A) 2 
B) 4 
C) 6 
D) 8

Question 4

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 5

If a researcher suspects that the strength of the relationship in the population is .25 for the main effect of factor A,.03 for factor B,and .15 for the interaction effect as indexed by eta-squared,what sample size should she use per cell in a study involving four levels of factor A,two levels of factor B,and an alpha level of .05 in order to achieve a power of at least .95 for each effect?

Accepted Answer

A) 7 
B) 12 
C) 25 
D) 53 
E) 211 
A) 7 
B) 12 
C) 25 
D) 53 
E) 211

Question 6

The manner in which we choose to state an interaction is arbitrary.

Accepted Answer

A) True 
 B)False

Question 7

Eta-squared can be used to assess the strength of the relationships for the two main effects,but not for the interaction effect.

Accepted Answer

A) True 
 B)False

Question 8

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 9

Discuss the analysis of main effects in terms of the nature of the relationship in two-way analysis of variance.

Accepted Answer

When a statistically significant main ef

Question 10

The F test is particularly robust to violations of the normality and homogeneity of variance assumptions when sample sizes are _____ and relatively _____.

Accepted Answer

A) unequal;large 
B) equal;large 
C) equal;small 
D) unequal;small 
A) unequal;large 
B) equal;large 
C) equal;small 
D) unequal;small

Question 11

If a factorial ANOVA is computed and a statistically significant main effect is determined for a factor that has two levels,the nature of the relationship should be determined by ____.

Accepted Answer

A) inspecting the sample means 
B) calculating eta2 
C) calculating a t score 
D) applying the Tukey HSD test 
A) inspecting the sample means 
B) calculating eta2 
C) calculating a t score 
D) applying the Tukey HSD test

Question 12

When an interaction effect is statistically significant,the nature of the interaction can be determined using simple main effects analysis or interaction comparisons.

Accepted Answer

A) True 
 B)False

Question 13

The data analysis for a two-way ANOVA is the same regardless of whether group sample sizes are equal or unequal.

Accepted Answer

A) True 
 B)False

Question 14

The joint effects of two independent variables on a dependent variable can be studied using:

Accepted Answer

A) factorial designs 
B) one-way analysis of variance 
C) single-subject designs 
D) none of these 
A) factorial designs 
B) one-way analysis of variance 
C) single-subject designs 
D) none of these

Question 15

In a two-way between-subjects analysis of variance,how many sets of statistical hypotheses are examined?

Accepted Answer

A) one set,which includes one null and one alternative hypothesis 
B) two sets,which includes a null and alternative hypothesis for both Factor A and B 
C) three sets,one for each main effect and one for the interaction effect 
D) four sets,one for each main effect,one for the interaction,and one for the error term 
A) one set,which includes one null and one alternative hypothesis 
B) two sets,which includes a null and alternative hypothesis for both Factor A and B 
C) three sets,one for each main effect and one for the interaction effect 
D) four sets,one for each main effect,one for the interaction,and one for the error term

Question 16

Two statistical procedures used to determine the nature of the interaction are

Accepted Answer

A) simple main effects analysis and least squares analysis of variance. 
B) simple main effects analysis and interaction comparisons. 
C) interaction comparisons and modified Bonferroni procedure. 
D) least squares analysis of variance and modified Bonferroni procedure. 
A) simple main effects analysis and least squares analysis of variance. 
B) simple main effects analysis and interaction comparisons. 
C) interaction comparisons and modified Bonferroni procedure. 
D) least squares analysis of variance and modified Bonferroni procedure.

Question 17

What problem might arise in using interaction contrasts to determine the nature of an interaction effect?

Accepted Answer

A problem with the strategy of breaking

In a two-way ANOVA,the _____ is further partitioned into three components,SS_A,SS_B,and SS_AxB.

Discuss the robustness of the F tests in two-way analysis of variance.

How many groups of individuals would be included in a 4 x 2 factorial design?

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. )

The manner in which we choose to state an interaction is arbitrary.

Eta-squared can be used to assess the strength of the relationships for the two main effects,but not for the interaction effect.

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

Discuss the analysis of main effects in terms of the nature of the relationship in two-way analysis of variance.

The F test is particularly robust to violations of the normality and homogeneity of variance assumptions when sample sizes are _ and relatively _.

If a factorial ANOVA is computed and a statistically significant main effect is determined for a factor that has two levels,the nature of the relationship should be determined by ____.

When an interaction effect is statistically significant,the nature of the interaction can be determined using simple main effects analysis or interaction comparisons.

The data analysis for a two-way ANOVA is the same regardless of whether group sample sizes are equal or unequal.

The joint effects of two independent variables on a dependent variable can be studied using:

In a two-way between-subjects analysis of variance,how many sets of statistical hypotheses are examined?

Two statistical procedures used to determine the nature of the interaction are

What problem might arise in using interaction contrasts to determine the nature of an interaction effect?

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

In a two-way ANOVA,the _____ is further partitioned into three components,SSA,SSB,and SSAxB.

Discuss the robustness of the F tests in two-way analysis of variance.

How many groups of individuals would be included in a 4 x 2 factorial design?

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. )

The manner in which we choose to state an interaction is arbitrary.

Eta-squared can be used to assess the strength of the relationships for the two main effects,but not for the interaction effect.

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

Discuss the analysis of main effects in terms of the nature of the relationship in two-way analysis of variance.

The F test is particularly robust to violations of the normality and homogeneity of variance assumptions when sample sizes are _____ and relatively _____.

If a factorial ANOVA is computed and a statistically significant main effect is determined for a factor that has two levels,the nature of the relationship should be determined by ____.

When an interaction effect is statistically significant,the nature of the interaction can be determined using simple main effects analysis or interaction comparisons.

The data analysis for a two-way ANOVA is the same regardless of whether group sample sizes are equal or unequal.

The joint effects of two independent variables on a dependent variable can be studied using:

In a two-way between-subjects analysis of variance,how many sets of statistical hypotheses are examined?

Two statistical procedures used to determine the nature of the interaction are

What problem might arise in using interaction contrasts to determine the nature of an interaction effect?

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

In a two-way ANOVA,the _____ is further partitioned into three components,SS_A,SS_B,and SS_AxB.

The F test is particularly robust to violations of the normality and homogeneity of variance assumptions when sample sizes are _ and relatively _.