Question 1

For an ANOVA,if SSbetween = 40 and SSwithin = 60,then η2 = 40/100.

Accepted Answer

A) True 
 B)False

Question 2

For an independent-measures ANOVA with n = 10 participants in each treatment condition,dfwithin = 9.

Accepted Answer

A) True 
 B)False

Question 3

In an analysis of variance,which of the following is not true?

Accepted Answer

A) SStotal = SSbetween + SSwithin 
B) dftotal = dfbetween + dfwithin 
C) MStotal = MSbetween + MSSwithin 
D) All three choices are true. 
A) SStotal = SSbetween + SSwithin 
B) dftotal = dfbetween + dfwithin 
C) MStotal = MSbetween + MSSwithin 
D) All three choices are true.

Question 4

Which of the following is expected if the null hypothesis is true for an analysis of variance?

Accepted Answer

A) SSbetween should be about the same size as SStotal 
B) SSbetween should be about the same size as SSwithin 
C) MSbetween should be about the same size as MStotal 
D) MSbetween should be about the same size as MSwithin 
A) SSbetween should be about the same size as SStotal 
B) SSbetween should be about the same size as SSwithin 
C) MSbetween should be about the same size as MStotal 
D) MSbetween should be about the same size as MSwithin

Question 5

When comparing more than two treatment means,why should you use an analysis of variance instead of using several t tests?

Accepted Answer

A) Using several t tests increases the risk of a Type I error. 
B) Using several t tests increases the risk of a Type II error. 
C) The analysis of variance is more likely to detect a treatment effect. 
D) There is no advantage to using an analysis of variance instead of several t tests. 
A) Using several t tests increases the risk of a Type I error. 
B) Using several t tests increases the risk of a Type II error. 
C) The analysis of variance is more likely to detect a treatment effect. 
D) There is no advantage to using an analysis of variance instead of several t tests.

Question 6

A research study comparing three treatments with n = 5 in each treatment produces T1 = 5,T2 = 10,T3 = 15,with SS1 = 6,SS2 = 9,SS3 = 9,and F1F1F1S1F1F1F10X2 = 94.For this study,what is SSwithin?

Accepted Answer

A) 10 
B) 24 
C) 34 
D) 68 
A) 10 
B) 24 
C) 34 
D) 68

Question 7

An analysis of variances produces dftotal = 29 and dfwithin  = 27.For this analysis,what is dfbetween?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) Cannot be determined without additional information 
A) 1 
B) 2 
C) 3 
D) Cannot be determined without additional information

Question 8

If an analysis of variance is used for the following data,what would be the effect of changing the value of M1 to 20? Sample Data

Accepted Answer

A) Increase SSbetween and increase the size of the F-ratio M1 = 15 M2 = 25 
B) Increase SSbetween and decrease the size of the F-ratio SS1 = 90 SS2 = 70 
C) Decrease SSbetween and increase the size of the F-ratio 
D) Decrease SSbetween and decrease the size of the F-ratio 
A) Increase SSbetween and increase the size of the F-ratio M1 = 15 M2 = 25 
B) Increase SSbetween and decrease the size of the F-ratio SS1 = 90 SS2 = 70 
C) Decrease SSbetween and increase the size of the F-ratio 
D) Decrease SSbetween and decrease the size of the F-ratio

Question 9

A researcher conducts an ANOVA to evaluate the mean difference between two treatments using the data from an independent-measures study and obtains F = 4.00.If the researcher had used an independent-measures t test,then t would be t = 2.00.

Accepted Answer

A) True 
 B)False

Question 10

After an ANOVA,a researcher computes 2 to evaluate effect size and obtains 2 = 0.50.If the ANOVA had SStotal = 100,then SSwithin = SSbetween = 50.

Accepted Answer

A) True 
 B)False

Question 11

For an analysis of variance comparing four treatment means with a separate sample of n = 8 participants in each treatment,the F-ratio will have df = 3,31.

Accepted Answer

A) True 
 B)False

Question 12

On average,what value is expected for the F-ratio if the null hypothesis is false?

Accepted Answer

A) 0 
B) 1.00 
C) Between 0 and 1.00 
D) Much greater than 1.00 
A) 0 
B) 1.00 
C) Between 0 and 1.00 
D) Much greater than 1.00

Question 13

A research report concludes that there are significant differences among treatments,with "F(2,24)= 8.62,p < .01." If the same number of participants was used in all of the treatment conditions,then how many individuals were in each treatment?

Accepted Answer

A) 7 
B) 9 
C) 10 
D) 30 
A) 7 
B) 9 
C) 10 
D) 30

Question 14

F-ratios are always greater than or equal to zero.

Accepted Answer

A) True 
 B)False

Question 15

If an analysis of variance produces a value of F = 0,then all of the samples have exactly the same mean.

Accepted Answer

A) True 
 B)False

Question 16

A researcher uses analysis of variance to test for mean differences among three treatments with a sample of n = 12 in each treatment.The F-ratio for this analysis would have what df values?

Accepted Answer

A) df = 2,11 
B) df = 2,33 
C) df = 2,35 
D) df = 2,36 
A) df = 2,11 
B) df = 2,33 
C) df = 2,35 
D) df = 2,36

For an ANOVA,if SS_between = 40 and SS_within = 60,then η² = 40/100.

For an independent-measures ANOVA with n = 10 participants in each treatment condition,df_within = 9.

In an analysis of variance,which of the following is not true?

Which of the following is expected if the null hypothesis is true for an analysis of variance?

When comparing more than two treatment means,why should you use an analysis of variance instead of using several t tests?

A research study comparing three treatments with n = 5 in each treatment produces T₁ = 5,T₂ = 10,T₃ = 15,with SS₁ = 6,SS₂ = 9,SS₃ = 9,and X²= 94.For this study,what is SS_within?

An analysis of variances produces df_total = 29 and df_within = 27.For this analysis,what is df_between?

If an analysis of variance is used for the following data,what would be the effect of changing the value of M₁ to 20? Sample Data

A researcher conducts an ANOVA to evaluate the mean difference between two treatments using the data from an independent-measures study and obtains F = 4.00.If the researcher had used an independent-measures t test,then t would be t = 2.00.

After an ANOVA,a researcher computes ² to evaluate effect size and obtains ² = 0.50.If the ANOVA had SS_total = 100,then SS_within = SS_between = 50.

For an analysis of variance comparing four treatment means with a separate sample of n = 8 participants in each treatment,the F-ratio will have df = 3,31.

On average,what value is expected for the F-ratio if the null hypothesis is false?

A research report concludes that there are significant differences among treatments,with "F(2,24)= 8.62,p < .01." If the same number of participants was used in all of the treatment conditions,then how many individuals were in each treatment?

F-ratios are always greater than or equal to zero.

If an analysis of variance produces a value of F = 0,then all of the samples have exactly the same mean.

A researcher uses analysis of variance to test for mean differences among three treatments with a sample of n = 12 in each treatment.The F-ratio for this analysis would have what df values?

Introduction to Statistics

Frequency Distributions

Measures of Central Tendency

Measures of Variability

Z-Scores

Probability

Probability and Samples:

Introduction to Hypothesis Testing

Introduction to the T Statistic

The T Test for Two Independent Samples

The T Test for Two Related Samples

Repeated-Measures and Two-Factor Anova

Correlation and Regression

Chi-Square Tests

Filters

Exam 12: Introduction to Analysis of Variance

For an ANOVA,if SSbetween = 40 and SSwithin = 60,then η2 = 40/100.

For an independent-measures ANOVA with n = 10 participants in each treatment condition,dfwithin = 9.

In an analysis of variance,which of the following is not true?

Which of the following is expected if the null hypothesis is true for an analysis of variance?

When comparing more than two treatment means,why should you use an analysis of variance instead of using several t tests?

A research study comparing three treatments with n = 5 in each treatment produces T1 = 5,T2 = 10,T3 = 15,with SS1 = 6,SS2 = 9,SS3 = 9,and X2 = 94.For this study,what is SSwithin?

An analysis of variances produces dftotal = 29 and dfwithin = 27.For this analysis,what is dfbetween?

If an analysis of variance is used for the following data,what would be the effect of changing the value of M1 to 20? Sample Data

A researcher conducts an ANOVA to evaluate the mean difference between two treatments using the data from an independent-measures study and obtains F = 4.00.If the researcher had used an independent-measures t test,then t would be t = 2.00.

After an ANOVA,a researcher computes 2 to evaluate effect size and obtains 2 = 0.50.If the ANOVA had SStotal = 100,then SSwithin = SSbetween = 50.

For an analysis of variance comparing four treatment means with a separate sample of n = 8 participants in each treatment,the F-ratio will have df = 3,31.

On average,what value is expected for the F-ratio if the null hypothesis is false?

A research report concludes that there are significant differences among treatments,with "F(2,24)= 8.62,p < .01." If the same number of participants was used in all of the treatment conditions,then how many individuals were in each treatment?

F-ratios are always greater than or equal to zero.

If an analysis of variance produces a value of F = 0,then all of the samples have exactly the same mean.

A researcher uses analysis of variance to test for mean differences among three treatments with a sample of n = 12 in each treatment.The F-ratio for this analysis would have what df values?

Introduction to Statistics

Frequency Distributions

Measures of Central Tendency

Measures of Variability

Z-Scores

Probability

Probability and Samples:

Introduction to Hypothesis Testing

Introduction to the T Statistic

The T Test for Two Independent Samples

The T Test for Two Related Samples

Repeated-Measures and Two-Factor Anova

Correlation and Regression

Chi-Square Tests

Filters

For an ANOVA,if SS_between = 40 and SS_within = 60,then η² = 40/100.

For an independent-measures ANOVA with n = 10 participants in each treatment condition,df_within = 9.

A research study comparing three treatments with n = 5 in each treatment produces T₁ = 5,T₂ = 10,T₃ = 15,with SS₁ = 6,SS₂ = 9,SS₃ = 9,and X²= 94.For this study,what is SS_within?

An analysis of variances produces df_total = 29 and df_within = 27.For this analysis,what is df_between?

If an analysis of variance is used for the following data,what would be the effect of changing the value of M₁ to 20? Sample Data

After an ANOVA,a researcher computes ² to evaluate effect size and obtains ² = 0.50.If the ANOVA had SS_total = 100,then SS_within = SS_between = 50.