Question 1

The F-ratio for a repeated-measures ANOVA has df = 1,15.The research study used a total of n = 16 participants.

Accepted Answer

A) True 
 B)False  True

Question 2

A two-factor research study is used to evaluate the effectiveness of a new blood-pressure medication.In this two-factor study,Factor A is medication versus no medication and factor B is male versus female.The medicine is expected to reduce blood pressure for both males and females,but it is expected to have a much greater effect for males.What pattern of results should be obtained if the medication works as predicted?

Accepted Answer

A) A significant main effect for factor A (medication) 
B) A significant interaction 
C) A significant main effect for factor A and a significant interaction 
D) None of these 
A) A significant main effect for factor A (medication) 
B) A significant interaction 
C) A significant main effect for factor A and a significant interaction 
D) None of these C

Question 3

A repeated-measures ANOVA produced an F-ratio of F = 4.00 with df = 1,14.If the same data were analyzed with a repeated-measures t test,what would be the df value for the t statistic?

Accepted Answer

A) 1 
B) 14 
C) 15 
D) Cannot determine without more information 
A) 1 
B) 14 
C) 15 
D) Cannot determine without more information B

Question 4

For a repeated-measures study,if there are no systematic treatment effects (H₀ is true),then the numerator and denominator of the F-ratio are both measuring the same sources of variance.

Accepted Answer

A) True 
 B)False

Question 5

When using the Scheffé post hoc test for a repeated-measures ANOVA,the denominator for the F ratio should be _____.

Accepted Answer

A) MSerror 
B) MSbetween subjects 
C) MSwithin 
D) MSbetween treatment 
A) MSerror 
B) MSbetween subjects 
C) MSwithin 
D) MSbetween treatment

Question 6

In a two-factor experiment with 2 levels of factor A and 2 levels of factor B,three of the treatment means are essentially identical and one is substantially different from the others.What result(s)would be produced by this pattern of treatment means?

Accepted Answer

A) A main effect for factor A 
B) A main effect for factor B 
C) An interaction between A and B 
D) The pattern would produce main effects for both A and B, and an interaction. 
A) A main effect for factor A 
B) A main effect for factor B 
C) An interaction between A and B 
D) The pattern would produce main effects for both A and B, and an interaction.

Question 7

A repeated-measures t test produces a t statistic of t = 4.00 with df = 12.If the same data were evaluated with a repeated-measures ANOVA,the F-ratio would have df = 2,12.

Accepted Answer

A) True 
 B)False

Question 8

A researcher reports an F-ratio with df = 2,40 from a repeated-measures ANOVA.How many subjects participated in this experiment?

Accepted Answer

A) 44 
B) 41 
C) 63 
D) 21 
A) 44 
B) 41 
C) 63 
D) 21

Question 9

A repeated-measures study uses a sample of n = 15 participants to evaluate the mean differences among four treatment conditions.In the analysis of variance for this study,what is the value for df between treatment?

Accepted Answer

A) 3 
B) 4 
C) 5 
D) 59 
A) 3 
B) 4 
C) 5 
D) 59

Question 10

In a two-factor analysis of variance,a main effect is defined as _____.

Accepted Answer

A) the mean differences among the levels of one factor 
B) the mean differences among all treatment conditions 
C) the mean difference between the two factors 
D) the difference between the largest treatment mean and the smallest treatment mean 
A) the mean differences among the levels of one factor 
B) the mean differences among all treatment conditions 
C) the mean difference between the two factors 
D) the difference between the largest treatment mean and the smallest treatment mean

Question 11

For a repeated-measures design,the differences between treatments may be caused by a treatment effect or by sampling error (random factors),but they cannot be caused by individual differences.

Accepted Answer

A) True 
 B)False

Question 12

If the F-ratio for factor A has df = 1,40 and the F-ratio for factor B has df = 3,40,then the F-ratio for the interaction must have df = 2,40.

Accepted Answer

A) True 
 B)False

Question 13

In a two-factor ANOVA,which of the following is not computed directly but rather is found by subtraction?

Accepted Answer

A)  $S S _ { \text {between } }$ treatments 
B) SSA 
C) SSB 
D) SSAxB 
A)  $S S _ { \text {between } }$ treatments 
B) SSA 
C) SSB 
D) SSAxB

Question 14

The following data were collected from a repeated-measures study:
   
a. Determine if there are any significant differences among the four treatments.Use
the .05 level of significance.
b.Compute the percentage of variance explained by the treatment effects (η²).

Accepted Answer

The answer of The following data were collected from a...

Question 15

For the following data,what are the df values for the repeated-measures F-ratio? $$\begin{array} { l c c l c l } 
 { \text { Treatments } } \
\text { Subject } & \text { I } & \text { II } & \text { III } & \text { P-totals } & \
\hline \text { A } & 3 & 4 & 5 & 12 & G = 27 \
\text { B } & 1 & 1 & 4 & 6 & \Sigma X ^ { 2 } = 109 \
\text { C } & 2 & 1 & 6 & 9 & \
& T = 6 & T = 6 & T = 15 & & \
& S S = 2 & S S = 6 & S S = 2 & &
\end{array}$$

Accepted Answer

A) 2, 4 
B) 2, 6 
C) 3, 4 
D) 3, 6 
A) 2, 4 
B) 2, 6 
C) 3, 4 
D) 3, 6

Question 16

A two-factor study compares 2 levels of factor A and 3 levels of factor B with a sample of n = 5 participants in each treatment condition.This study uses a total of 25 participants.

Accepted Answer

A) True 
 B)False

Question 17

For a repeated-measures study comparing three treatment conditions with a sample of n = 4 participants,the participant totals (the P values)are 3,6,9,and 6.What is the value for $S S _ { \text {between } }$ subjects?

Accepted Answer

A) 2 
B) 3 
C) 6 
D) 10 
A) 2 
B) 3 
C) 6 
D) 10

Question 18

In an independent-measures ANOVA,individual differences contribute to the variance in the numerator and in the denominator of the F-ratio.For a repeated-measures ANOVA,what happens to the individual differences in the numerator of the F-ratio?

Accepted Answer

A) They do not exist because the same individuals participate in all treatments. 
B) They are measured and subtracted out in the second stage of the analysis. 
C) Individual differences contribute to the variance in the numerator. 
D) None of the other options accurately describes individual differences in the numerator. 
A) They do not exist because the same individuals participate in all treatments. 
B) They are measured and subtracted out in the second stage of the analysis. 
C) Individual differences contribute to the variance in the numerator. 
D) None of the other options accurately describes individual differences in the numerator.

Question 19

For the repeated-measures analysis,the F-ratio,on average,is expected to be zero when H₀ is true.

Accepted Answer

A) True 
 B)False

Question 20

The following data were collected from a repeated-measures study.Perform an ANOVA and then analyze the data with a t test.Use the .05 level of significance for both.

Accepted Answer

\[\begin{array}{l}
\begin{array} { l r r

The F-ratio for a repeated-measures ANOVA has df = 1,15.The research study used a total of n = 16 participants.

A repeated-measures ANOVA produced an F-ratio of F = 4.00 with df = 1,14.If the same data were analyzed with a repeated-measures t test,what would be the df value for the t statistic?

For a repeated-measures study,if there are no systematic treatment effects (H₀ is true),then the numerator and denominator of the F-ratio are both measuring the same sources of variance.

When using the Scheffé post hoc test for a repeated-measures ANOVA,the denominator for the F ratio should be _____.

In a two-factor experiment with 2 levels of factor A and 2 levels of factor B,three of the treatment means are essentially identical and one is substantially different from the others.What result(s)would be produced by this pattern of treatment means?

A repeated-measures t test produces a t statistic of t = 4.00 with df = 12.If the same data were evaluated with a repeated-measures ANOVA,the F-ratio would have df = 2,12.

A researcher reports an F-ratio with df = 2,40 from a repeated-measures ANOVA.How many subjects participated in this experiment?

A repeated-measures study uses a sample of n = 15 participants to evaluate the mean differences among four treatment conditions.In the analysis of variance for this study,what is the value for df between treatment?

In a two-factor analysis of variance,a main effect is defined as _____.

For a repeated-measures design,the differences between treatments may be caused by a treatment effect or by sampling error (random factors),but they cannot be caused by individual differences.

If the F-ratio for factor A has df = 1,40 and the F-ratio for factor B has df = 3,40,then the F-ratio for the interaction must have df = 2,40.

In a two-factor ANOVA,which of the following is not computed directly but rather is found by subtraction?

The following data were collected from a repeated-measures study: a. Determine if there are any significant differences among the four treatments.Use the .05 level of significance. b.Compute the percentage of variance explained by the treatment effects (η²).

For the following data,what are the df values for the repeated-measures F-ratio? Treatments Subject I II III P-totals A 3 4 5 12 G=27 B 1 1 4 6 \Sigma=109 C 2 1 6 9 T=6 T=6 T=15 SS=2 SS=6 SS=2

A two-factor study compares 2 levels of factor A and 3 levels of factor B with a sample of n = 5 participants in each treatment condition.This study uses a total of 25 participants.

For a repeated-measures study comparing three treatment conditions with a sample of n = 4 participants,the participant totals (the P values)are 3,6,9,and 6.What is the value for $S S _ { \text {between } }$ subjects?

In an independent-measures ANOVA,individual differences contribute to the variance in the numerator and in the denominator of the F-ratio.For a repeated-measures ANOVA,what happens to the individual differences in the numerator of the F-ratio?

For the repeated-measures analysis,the F-ratio,on average,is expected to be zero when H₀ is true.

The following data were collected from a repeated-measures study.Perform an ANOVA and then analyze the data with a t test.Use the .05 level of significance for both.

Introduction to Statistics.

Frequency Distributions.

Central Tendency.

Variability.

z-Scores: Location of Scores and Standardized Distributions.

Probability.

Probability and Samples: The Distribution of Sample Means.

Introduction to Hypothesis Testing.

Introduction to the t Statistic

The t Test for Two Independent Samples

The t Test for Two Related Samples

Introduction to Analysis of Variance

Correlation and Regression.

The Chi-Square Statistic: Tests for Goodness of Fit and Independence

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Exam 13: Repeated-Measures and Two-Factor Analysis of Variance

The F-ratio for a repeated-measures ANOVA has df = 1,15.The research study used a total of n = 16 participants.

A repeated-measures ANOVA produced an F-ratio of F = 4.00 with df = 1,14.If the same data were analyzed with a repeated-measures t test,what would be the df value for the t statistic?

For a repeated-measures study,if there are no systematic treatment effects (H₀ is true),then the numerator and denominator of the F-ratio are both measuring the same sources of variance.

When using the Scheffé post hoc test for a repeated-measures ANOVA,the denominator for the F ratio should be _____.

In a two-factor experiment with 2 levels of factor A and 2 levels of factor B,three of the treatment means are essentially identical and one is substantially different from the others.What result(s)would be produced by this pattern of treatment means?

A repeated-measures t test produces a t statistic of t = 4.00 with df = 12.If the same data were evaluated with a repeated-measures ANOVA,the F-ratio would have df = 2,12.

A researcher reports an F-ratio with df = 2,40 from a repeated-measures ANOVA.How many subjects participated in this experiment?

A repeated-measures study uses a sample of n = 15 participants to evaluate the mean differences among four treatment conditions.In the analysis of variance for this study,what is the value for df between treatment?

In a two-factor analysis of variance,a main effect is defined as _____.

For a repeated-measures design,the differences between treatments may be caused by a treatment effect or by sampling error (random factors),but they cannot be caused by individual differences.

If the F-ratio for factor A has df = 1,40 and the F-ratio for factor B has df = 3,40,then the F-ratio for the interaction must have df = 2,40.

In a two-factor ANOVA,which of the following is not computed directly but rather is found by subtraction?

The following data were collected from a repeated-measures study: a. Determine if there are any significant differences among the four treatments.Use the .05 level of significance. b.Compute the percentage of variance explained by the treatment effects (η²).

For the following data,what are the df values for the repeated-measures F-ratio? Treatments Subject I II III P-totals A 3 4 5 12 G=27 B 1 1 4 6 \Sigma=109 C 2 1 6 9 T=6 T=6 T=15 SS=2 SS=6 SS=2

A two-factor study compares 2 levels of factor A and 3 levels of factor B with a sample of n = 5 participants in each treatment condition.This study uses a total of 25 participants.

For a repeated-measures study comparing three treatment conditions with a sample of n = 4 participants,the participant totals (the P values)are 3,6,9,and 6.What is the value for SSbetween S S _ { \text {between } }SSbetween ​ subjects?

In an independent-measures ANOVA,individual differences contribute to the variance in the numerator and in the denominator of the F-ratio.For a repeated-measures ANOVA,what happens to the individual differences in the numerator of the F-ratio?

For the repeated-measures analysis,the F-ratio,on average,is expected to be zero when H₀ is true.

The following data were collected from a repeated-measures study.Perform an ANOVA and then analyze the data with a t test.Use the .05 level of significance for both.

Introduction to Statistics.

Frequency Distributions.

Central Tendency.

Variability.

z-Scores: Location of Scores and Standardized Distributions.

Probability.

Probability and Samples: The Distribution of Sample Means.

Introduction to Hypothesis Testing.

Introduction to the t Statistic

The t Test for Two Independent Samples

The t Test for Two Related Samples

Introduction to Analysis of Variance

Correlation and Regression.

The Chi-Square Statistic: Tests for Goodness of Fit and Independence

Filters

For a repeated-measures study comparing three treatment conditions with a sample of n = 4 participants,the participant totals (the P values)are 3,6,9,and 6.What is the value for $S S _ { \text {between } }$ subjects?