Question 1

Emma conducted a 3 x 2 ANOVA, which revealed a significant interaction. If she is interested in interpreting this interaction, which analyses should she now conduct?

Accepted Answer

A)  One sample t-test 
B)  Chi-Square test 
C)  Simple effects 
D)  Wilcoxon Signed-Rank test 
A)  One sample t-test 
B)  Chi-Square test 
C)  Simple effects 
D)  Wilcoxon Signed-Rank test C

Question 2

What is Eta Squared when SSbetween = 30, SSTotal = 46?

Accepted Answer

A)  .6521 
B)  1.533 
C)  1380 
D)  0.76 
A)  .6521 
B)  1.533 
C)  1380 
D)  0.76 A

Question 3

Out of the following three common post-hoc analyses, which one is the most conservative?

Accepted Answer

A)  Bonferroni correction 
B)  Fisher's LSD 
C)  Multi-stage significance testing 
D)  None of these 
A)  Bonferroni correction 
B)  Fisher's LSD 
C)  Multi-stage significance testing 
D)  None of these A

Question 4

The three assumptions of a factorial ANOVA include: normality of distribution, independence of cases, and ______.

Accepted Answer

A)  sphericity 
B)  homogeneity of variance 
C)  expected frequency equals zero 
D)  Both sphericity and expected frequency equals zero 
A)  sphericity 
B)  homogeneity of variance 
C)  expected frequency equals zero 
D)  Both sphericity and expected frequency equals zero

Question 5

The three types of factorial ANOVAs designs are between-subjects, within-subjects, and mixed.

Accepted Answer

A) True 
 B)False

Question 6

For an experiment comparing more than two treatment conditions, why should you use analysis of variance rather than separate t tests?

Accepted Answer

A)  Separate t tests would require substantially more computations. 
B)  A test based on variances is more sensitive than a test based on means. 
C)  Conducting several t tests would inflate the risk of a Type I error. 
D)  There is no difference between the two tests, you can use either one. 
A)  Separate t tests would require substantially more computations. 
B)  A test based on variances is more sensitive than a test based on means. 
C)  Conducting several t tests would inflate the risk of a Type I error. 
D)  There is no difference between the two tests, you can use either one.

Question 7

If F(2, 20) = 3.50, we can reject the null hypothesis at α =_______.

Accepted Answer

A)  .05 
B)  .01 
C)  .001 
D)  .00001 
A)  .05 
B)  .01 
C)  .001 
D)  .00001

Question 8

The formula for determining the dfTotal in a between subject ANOVA model is: ______.

Accepted Answer

A)  ki - 1. 
B)  N - ab. 
C)  (df
A)  (df
B) . 
D)  N - 1. 
A)  ki - 1. 
B)  N - ab. 
C)  (df
A)  (df
B) . 
D)  N - 1.

Question 9

Hans would like to examine whether he has violated the homogeneity of variance assumption. What test should he run?

Accepted Answer

A)  Levene's test 
B)  Tukey HSD test 
C)  Dunnett's test 
D)  Correlated groups t-test 
A)  Levene's test 
B)  Tukey HSD test 
C)  Dunnett's test 
D)  Correlated groups t-test

Question 10

An ANOVA model with 2 levels of an IV was conducted and indicated a non-significant main effect. Specify why post-hoc analyses would not be conducted?

Accepted Answer

A)  Post-hoc analyses are not necessary when the IV only has 2 levels. 
B)  Post-hoc analyses are not necessary following non-significant main effects. 
C)  Both post-hoc analyses are not necessary when the IV only has 2 levels and post-hoc analyses are not necessary following non-significant main effects. 
D)  None of these. 
A)  Post-hoc analyses are not necessary when the IV only has 2 levels. 
B)  Post-hoc analyses are not necessary following non-significant main effects. 
C)  Both post-hoc analyses are not necessary when the IV only has 2 levels and post-hoc analyses are not necessary following non-significant main effects. 
D)  None of these.

Question 11

If F(3, 11) = 6.20, we ______ the null hypothesis at alpha .

Accepted Answer

A)  Fail to reject 
B)  Reject 
A)  Fail to reject 
B)  Reject

Question 12

The F ratio is always positive in the ANOVA model.

Accepted Answer

A) True 
 B)False

Question 13

A 2 x 3 factorial ANOVA has:

Accepted Answer

A)  2 factors and 3 conditions. 
B)  2 factors and 6 conditions. 
C)  3 factors and 2 conditions. 
D)  3 factors and 6 conditions. 
A)  2 factors and 3 conditions. 
B)  2 factors and 6 conditions. 
C)  3 factors and 2 conditions. 
D)  3 factors and 6 conditions.

Question 14

Alpha levels determine the level of ______ error we are willing to make.

Accepted Answer

A)  Type I 
B)  Type II 
C)  Both Type I and Type II 
D)  None of these 
A)  Type I 
B)  Type II 
C)  Both Type I and Type II 
D)  None of these

Question 15

If there is a treatment effect, the F ratio will be:

Accepted Answer

A)  1. 
B)  smaller than 1. 
C)  greater than 1. 
D)  any number that is not negative. 
A)  1. 
B)  smaller than 1. 
C)  greater than 1. 
D)  any number that is not negative.

Question 16

The statistical notation G denotes ______.

Accepted Answer

A)  grand mean 
B)  great mean 
C)  global mean 
D)  gain mean 
A)  grand mean 
B)  great mean 
C)  global mean 
D)  gain mean

Question 17

What is p the probability of?

Accepted Answer

A)  p is the probability that the results are due to chance, the probability that the null hypothesis (H0) is true. 
B)  p is the probability of observing results as extreme (or more) as observed, if the null hypothesis (H0) is true. 
C)  p is the probability that the results would be replicated if the experiment was conducted a second time. 
D)  p is the probability that the results are not due to chance, the probability that the null hypothesis (H0) is false. 
A)  p is the probability that the results are due to chance, the probability that the null hypothesis (H0) is true. 
B)  p is the probability of observing results as extreme (or more) as observed, if the null hypothesis (H0) is true. 
C)  p is the probability that the results would be replicated if the experiment was conducted a second time. 
D)  p is the probability that the results are not due to chance, the probability that the null hypothesis (H0) is false.

Question 18

ANOVA is often robust to violations in the skew of the data.

Accepted Answer

A) True 
 B)False

Question 19

Michael is testing the hypothesis that anger has a negative impact on decision making. He reported these findings: F(2,12) = 6.93. How many people were in Michaels study?

Accepted Answer

A)  9 
B)  14 
C)  15 
D)  36 
A)  9 
B)  14 
C)  15 
D)  36

Question 20

A researcher plans to conduct a research study comparing two treatment conditions with a total of 20 scores in each treatment. Which of the following designs would require the smallest number of participants?

Accepted Answer

A)  Between-subjects design 
B)  Mixed design 
C)  Within-subjects design 
D)  None of these 
A)  Between-subjects design 
B)  Mixed design 
C)  Within-subjects design 
D)  None of these

Emma conducted a 3 x 2 ANOVA, which revealed a significant interaction. If she is interested in interpreting this interaction, which analyses should she now conduct?

What is Eta Squared when SS_between = 30, SS_Total = 46?

Out of the following three common post-hoc analyses, which one is the most conservative?

The three assumptions of a factorial ANOVA include: normality of distribution, independence of cases, and ______.

The three types of factorial ANOVAs designs are between-subjects, within-subjects, and mixed.

For an experiment comparing more than two treatment conditions, why should you use analysis of variance rather than separate t tests?

If F(2, 20) = 3.50, we can reject the null hypothesis at α =_______.

The formula for determining the df_Total in a between subject ANOVA model is: ______.

Hans would like to examine whether he has violated the homogeneity of variance assumption. What test should he run?

An ANOVA model with 2 levels of an IV was conducted and indicated a non-significant main effect. Specify why post-hoc analyses would not be conducted?

If F(3, 11) = 6.20, we ______ the null hypothesis at alpha .

The F ratio is always positive in the ANOVA model.

A 2 x 3 factorial ANOVA has:

Alpha levels determine the level of ______ error we are willing to make.

If there is a treatment effect, the F ratio will be:

The statistical notation G denotes ______.

What is p the probability of?

ANOVA is often robust to violations in the skew of the data.

Michael is testing the hypothesis that anger has a negative impact on decision making. He reported these findings: F(2,12) = 6.93. How many people were in Michaels study?

A researcher plans to conduct a research study comparing two treatment conditions with a total of 20 scores in each treatment. Which of the following designs would require the smallest number of participants?

Research Questions, Design, Strategy and Choice of Methods

Ethics

Big Questions and New Methods

Capturing and Recording Information

Telling Others About Your Research

Psychology As a Science: What Is Science

Accessing Difficult to Access Information

Quasi-Experimental Designs Including Obervational Methods

Experimental Design

Interviewing and Focus Groups

Descriptive Statistics: Graphical and Numerical Methods

Content Analysis, Thematic Analysis and Discourse Analysis

Self-Report Data

Questionnaire Design

Surveys and Sampling

Inferential Statistics

Correlation and Regression

Creating Latent Variables

Filters

Exam 17: Factorial Anova

Emma conducted a 3 x 2 ANOVA, which revealed a significant interaction. If she is interested in interpreting this interaction, which analyses should she now conduct?

What is Eta Squared when SSbetween = 30, SSTotal = 46?

Out of the following three common post-hoc analyses, which one is the most conservative?

The three assumptions of a factorial ANOVA include: normality of distribution, independence of cases, and ______.

The three types of factorial ANOVAs designs are between-subjects, within-subjects, and mixed.

For an experiment comparing more than two treatment conditions, why should you use analysis of variance rather than separate t tests?

If F(2, 20) = 3.50, we can reject the null hypothesis at α =_______.

The formula for determining the dfTotal in a between subject ANOVA model is: ______.

Hans would like to examine whether he has violated the homogeneity of variance assumption. What test should he run?

An ANOVA model with 2 levels of an IV was conducted and indicated a non-significant main effect. Specify why post-hoc analyses would not be conducted?

If F(3, 11) = 6.20, we ______ the null hypothesis at alpha .

The F ratio is always positive in the ANOVA model.

A 2 x 3 factorial ANOVA has:

Alpha levels determine the level of ______ error we are willing to make.

If there is a treatment effect, the F ratio will be:

The statistical notation G denotes ______.

What is p the probability of?

ANOVA is often robust to violations in the skew of the data.

Michael is testing the hypothesis that anger has a negative impact on decision making. He reported these findings: F(2,12) = 6.93. How many people were in Michaels study?

A researcher plans to conduct a research study comparing two treatment conditions with a total of 20 scores in each treatment. Which of the following designs would require the smallest number of participants?

Research Questions, Design, Strategy and Choice of Methods

Ethics

Big Questions and New Methods

Capturing and Recording Information

Telling Others About Your Research

Psychology As a Science: What Is Science

Accessing Difficult to Access Information

Quasi-Experimental Designs Including Obervational Methods

Experimental Design

Interviewing and Focus Groups

Descriptive Statistics: Graphical and Numerical Methods

Content Analysis, Thematic Analysis and Discourse Analysis

Self-Report Data

Questionnaire Design

Surveys and Sampling

Inferential Statistics

Correlation and Regression

Creating Latent Variables

Filters

What is Eta Squared when SS_between = 30, SS_Total = 46?

The formula for determining the df_Total in a between subject ANOVA model is: ______.