Question 1

In the worksheet exercise, what was the effect size for the interaction?

Accepted Answer

A)  .144 
B)  .002 
C)  .004 
D)  .102 
A)  .144 
B)  .002 
C)  .004 
D)  .102 A

Question 2

Which row of values from the SPSS output for the main effects and the interaction do you need to look at when the assumption of sphericity has been violated?

Accepted Answer

A)  Sphericity Assumed 
B)  Lower-bound 
C)  Greenhouse-Geisser 
D)  Huynh-Feldt 
A)  Sphericity Assumed 
B)  Lower-bound 
C)  Greenhouse-Geisser 
D)  Huynh-Feldt C

Question 3

Which steps do you need to take to run a two-way repeated measures factorial ANOVA in SPSS?

Accepted Answer

A)  Analyze > General Linear Model > Multivariate… 
B)  Analyze > Compare Means > Multivariate… 
C)  Analyze > General Linear Model > Repeated Measures… 
D)  Analyze > Compare Means > Repeated Measures… 
A)  Analyze > General Linear Model > Multivariate… 
B)  Analyze > Compare Means > Multivariate… 
C)  Analyze > General Linear Model > Repeated Measures… 
D)  Analyze > Compare Means > Repeated Measures… C

Question 4

Which parts of the analysis do you need to cover when writing up a two-way repeated measures ANOVA?

Accepted Answer

A)  The assumption of sphericity, the main effect of independent variables 
B)  The assumption of sphericity, the main effect of both independent variables and the interaction 
C)  The main effect of both independent variables 
D)  The main effect of one independent variable and the interaction 
A)  The assumption of sphericity, the main effect of independent variables 
B)  The assumption of sphericity, the main effect of both independent variables and the interaction 
C)  The main effect of both independent variables 
D)  The main effect of one independent variable and the interaction

Question 5

In the worksheet exercise, what are the correct degrees of freedom to report for the main effect of therapy type?

Accepted Answer

A)  1, 39 
B)  1, 78 
C)  2, 39 
D)  2, 78 
A)  1, 39 
B)  1, 78 
C)  2, 39 
D)  2, 78

Question 6

How do you break down a main effect when it is significant?

Accepted Answer

A)  By the planned contrasts 
B)  By the repeated measures t tests 
C)  By the t tests 
D)  By the descriptive statistics and the planned or post hoc contrasts if there are more than two conditions in an independent variable 
A)  By the planned contrasts 
B)  By the repeated measures t tests 
C)  By the t tests 
D)  By the descriptive statistics and the planned or post hoc contrasts if there are more than two conditions in an independent variable

Question 7

How do you break down the interaction between independent variables when it is significant?

Accepted Answer

A)  By the descriptive statistics and the graph 
B)  By the descriptive statistics, the graph, and the repeated measures t tests 
C)  By the descriptive statistics 
D)  By the repeated measures t tests 
A)  By the descriptive statistics and the graph 
B)  By the descriptive statistics, the graph, and the repeated measures t tests 
C)  By the descriptive statistics 
D)  By the repeated measures t tests

Question 8

In a study looking at how scores may change across the different levels of an IV, how can you test this prediction?

Accepted Answer

A)  Running the Games-Howell post hoc 
B)  Running a planned polynomial contrast 
C)  Running the Bonferroni post hoc test 
D)  Running both planned and post hoc contrasts 
A)  Running the Games-Howell post hoc 
B)  Running a planned polynomial contrast 
C)  Running the Bonferroni post hoc test 
D)  Running both planned and post hoc contrasts

Question 9

Why should you use a Bonferroni corrected alpha when breaking down a significant interaction?

Accepted Answer

A)  Because of the increased risk of a Type I Error when making multiple statistical tests 
B)  Because of the increased risk of a Type II Error when making multiple statistical tests 
C)  Because the assumption of homogeneity of variance has been violated 
D)  Because of non-normally distributed data 
A)  Because of the increased risk of a Type I Error when making multiple statistical tests 
B)  Because of the increased risk of a Type II Error when making multiple statistical tests 
C)  Because the assumption of homogeneity of variance has been violated 
D)  Because of non-normally distributed data

Question 10

In the worksheet exercise, what is the correct significance for the main effect of time?

Accepted Answer

A)  .015 
B)  .020 
C)  .018 
D)  .041 
A)  .015 
B)  .020 
C)  .018 
D)  .041

Question 11

Which of the following statements is not correct?

Accepted Answer

A)  Sphericity can be calculated when an independent variable has two conditions. 
B)  The assumption of sphericity looks at the variability in the difference scores between conditions. 
C)  The Mauchly's test of sphericity is used to test the assumption of sphericity. 
D)  The assumption of sphericity tells if the experimental manipulation has a consistent effect on the differences between conditions. 
A)  Sphericity can be calculated when an independent variable has two conditions. 
B)  The assumption of sphericity looks at the variability in the difference scores between conditions. 
C)  The Mauchly's test of sphericity is used to test the assumption of sphericity. 
D)  The assumption of sphericity tells if the experimental manipulation has a consistent effect on the differences between conditions.

Question 12

In the worksheet exercise, looking at the descriptive statistics for the interaction, at which time point do the therapy types differ most from each other?

Accepted Answer

A)  They are the same at all three time points. 
B)  After the first session 
C)  After 16 weeks 
D)  After 32 weeks 
A)  They are the same at all three time points. 
B)  After the first session 
C)  After 16 weeks 
D)  After 32 weeks

Question 13

When do you use a two-way factorial repeated measures ANOVA?

Accepted Answer

A)  When you compare three or more group means where the participants are the same in each group 
B)  When you compare means from two conditions 
C)  When you compare the mean differences between groups with two repeated measures IVs 
D)  When you compare means from more than two conditions 
A)  When you compare three or more group means where the participants are the same in each group 
B)  When you compare means from two conditions 
C)  When you compare the mean differences between groups with two repeated measures IVs 
D)  When you compare means from more than two conditions

Question 14

Which of the following statistics does the "Test of Within Subjects Effects" table in the output of a two-way repeated measures ANOVA not show?

Accepted Answer

A)  F ratio 
B)  Degrees of Freedom 
C)  Standard Deviation 
D)  Mean Square 
A)  F ratio 
B)  Degrees of Freedom 
C)  Standard Deviation 
D)  Mean Square

Question 15

In the worksheet exercise, why is there no result for Mauchly's test of sphericity for the main effect of therapy type?

Accepted Answer

A)  Because it is significant 
B)  Because it is not significant 
C)  Because there are more than two conditions in the therapy type IV, so sphericity cannot be calculated. 
D)  Because there are only two conditions in the therapy type IV, so sphericity cannot be calculated. 
A)  Because it is significant 
B)  Because it is not significant 
C)  Because there are more than two conditions in the therapy type IV, so sphericity cannot be calculated. 
D)  Because there are only two conditions in the therapy type IV, so sphericity cannot be calculated.

Exam 11: Two-Way Factorial Repeated Anova

In the worksheet exercise, what was the effect size for the interaction?

Which row of values from the SPSS output for the main effects and the interaction do you need to look at when the assumption of sphericity has been violated?

Which steps do you need to take to run a two-way repeated measures factorial ANOVA in SPSS?

Which parts of the analysis do you need to cover when writing up a two-way repeated measures ANOVA?

In the worksheet exercise, what are the correct degrees of freedom to report for the main effect of therapy type?

How do you break down a main effect when it is significant?

How do you break down the interaction between independent variables when it is significant?

In a study looking at how scores may change across the different levels of an IV, how can you test this prediction?

Why should you use a Bonferroni corrected alpha when breaking down a significant interaction?

In the worksheet exercise, what is the correct significance for the main effect of time?

Which of the following statements is not correct?

In the worksheet exercise, looking at the descriptive statistics for the interaction, at which time point do the therapy types differ most from each other?

When do you use a two-way factorial repeated measures ANOVA?

Which of the following statistics does the "Test of Within Subjects Effects" table in the output of a two-way repeated measures ANOVA not show?

In the worksheet exercise, why is there no result for Mauchly's test of sphericity for the main effect of therapy type?

The Basics of Research Design

Questionnaire Design

Analysing Data for Psychological Research

Introducing Spss

Experimental Design

T Tests

One-Way Independent Measures Anova

One-Way Repeated Measures Anova

Ancova

Two-Way Factorial Independent Anova

Two-Way Factorial Mixed Design Anova

Presenting Experimental Studies

Correlational Design

Correlations

Multiple Regression

Hierarchical Regression

Logistic Regression

Factor Analysis

Presenting Correlational Studies

Qualitative Design

Designing Interviews and Focus Groups

Content Analysis and Thematic Analysis

Grounded Theory

Interpretative Phenomenological Analysis

Discourse Analysis

Presenting Qualitative Studies

How Do I Decide What to Do With My Data

Mixed Methods

Broadening Your Research Horizons

Filters