If an analysis of variance is used for the following data,what would be the effect of changing the value of M2 to 25? Sample Data \[\begin{array} { l l } M _ { 1 } = 10 & M _ { 2 } = 20 \\ S S _ { 1 } = 90 & S S _ { 2 } = 70 \end{array}\]

A) Increase $S S _ { \text {between } }$ and increase the F-ratio B) Increase $S S _ { \text {between } }$ and decrease the F-ratio C) Decrease $S S _ { \text {between } }$ and increase the F-ratio D) Decrease $S S _ { \text {between } }$ and decrease the F-ratio A) Increase $S S _ { \text {between } }$ and increase the F-ratio B) Increase $S S _ { \text {between } }$ and decrease the F-ratio C) Decrease $S S _ { \text {between } }$ and increase the F-ratio D) Decrease $S S _ { \text {between } }$ and decrease the F-ratio

Exam 12: Introduction to Analysis of Variance

After an ANOVA,a researcher computes $After an ANOVA,a researcher computes ² to evaluate effect size and obtains ² = 0.50.If the ANOVA had SS<sub>total</sub> = 100,then \text { SSwithin } = S S _ { \text {between } } = 50.$ ² to evaluate effect size and obtains11eedb96_7b94_556d_a0ba_3d9dc406b78d_TB2285_11² = 0.50.If the ANOVA had SS_total = 100,then $\text { SSwithin }$ = $S S _ { \text {between } }$ = 50.

(True/False)

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Question 21

In an analysis of variance,differences caused by treatment effects contribute to which of the following variances?

(Multiple Choice)

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Question 22

An analysis of variances produces df between = 3 and dfwᵢthᵢn = 24.If each treatment has the same number of participants,then how many participants are in each treatment?

(Multiple Choice)

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Question 23

Posttests are only needed if H₀ is rejected in an ANOVA comparing more than two treatments.

(True/False)

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Question 24

If an analysis of variance produces $S S _ { \text {between } }$ = 20 and $\text { SSwithin }$ = 40,then $If an analysis of variance produces S S _ { \text {between } } = 20 and \text { SSwithin } = 40,then ² = 0.50.$ ² = 0.50.

(True/False)

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Question 25

If an analysis of variance is used for the following data,what would be the effect of changing the value of SS2 to 100? Sample Data =15 =25 S=90 S=70

(Multiple Choice)

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Question 26

For an independent-measures ANOVA comparing three treatments with a sample of n = 5 in each treatment,what is the critical value for the F-ratio using α = .05?

(Multiple Choice)

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Question 27

The data below are from an independent-measures experiment comparing three different treatment conditions. a.Explain why an ANOVA should be used instead of a series of t tests to evaluate the mean differences among the three treatments. b.Use an analysis of variance with α = .05 to determine whether these data indicate any significant mean differences among the treatments. c.Compute η², the percentage of variance accounted for by the treatments.

(Essay)

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Question 28

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

(True/False)

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Question 29

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

(Multiple Choice)

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Question 30

$\text { SSwithin }$ measures the size of the sample variances.

(True/False)

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Question 31

The larger the differences among the sample means,the larger the numerator of the F-ratio will be.

(True/False)

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Question 32

A research report presents the results of an independent-measures ANOVA as follows: F(3,28)= 5.36,p < .01.If all the samples were the same size,then each sample had n = 7 participants.

(True/False)

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Question 33

If an analysis of variance is used for the following data,what would be the effect of changing the value of M₂ to 25? Sample Data =10 =20 S=90 S=70

(Multiple Choice)

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Question 34

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

(Multiple Choice)

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Question 35

A researcher reports an F-ratio with df = 1,24 for an independent-measures experiment.If all the treatments had the same number of participants,then how many individuals were in each treatment?

(Multiple Choice)

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Question 36

An analysis of variances produces dfₜₒₜₐₗ = 29 and dfwᵢthᵢn = 27.For this analysis,how many treatment conditions are being compared?

(Multiple Choice)

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Question 37

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 each of the treatment conditions,then how many individuals were in each treatment?

(Multiple Choice)

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Question 38

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?

(Multiple Choice)

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Question 39

Which of the following describes a typical distribution of F-ratios?

(Multiple Choice)

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Question 40

Showing 21 - 40 of 84

In an analysis of variance,differences caused by treatment effects contribute to which of the following variances?

An analysis of variances produces df between = 3 and dfwᵢthᵢn = 24.If each treatment has the same number of participants,then how many participants are in each treatment?

Posttests are only needed if H₀ is rejected in an ANOVA comparing more than two treatments.

If an analysis of variance produces $S S _ { \text {between } }$ = 20 and $\text { SSwithin }$ = 40,then $If an analysis of variance produces S S _ { \text {between } } = 20 and \text { SSwithin } = 40,then ² = 0.50.$ ² = 0.50.

If an analysis of variance is used for the following data,what would be the effect of changing the value of SS2 to 100? Sample Data =15 =25 S=90 S=70

For an independent-measures ANOVA comparing three treatments with a sample of n = 5 in each treatment,what is the critical value for the F-ratio using α = .05?

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

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

$\text { SSwithin }$ measures the size of the sample variances.

The larger the differences among the sample means,the larger the numerator of the F-ratio will be.

A research report presents the results of an independent-measures ANOVA as follows: F(3,28)= 5.36,p < .01.If all the samples were the same size,then each sample had n = 7 participants.

If an analysis of variance is used for the following data,what would be the effect of changing the value of M₂ to 25? Sample Data =10 =20 S=90 S=70

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

A researcher reports an F-ratio with df = 1,24 for an independent-measures experiment.If all the treatments had the same number of participants,then how many individuals were in each treatment?

An analysis of variances produces dfₜₒₜₐₗ = 29 and dfwᵢthᵢn = 27.For this analysis,how many treatment conditions are being compared?

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 each of the treatment conditions,then how many individuals were in each treatment?

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?

Which of the following describes a typical distribution of F-ratios?

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

Repeated-Measures and Two-Factor Analysis of Variance

Correlation and Regression.

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

Filters

Exam 12: Introduction to Analysis of Variance

After an ANOVA,a researcher computes ² to evaluate effect size and obtains11eedb96_7b94_556d_a0ba_3d9dc406b78d_TB2285_11² = 0.50.If the ANOVA had SStotal = 100,then SSwithin \text { SSwithin } SSwithin = SSbetween S S _ { \text {between } }SSbetween ​ = 50.

In an analysis of variance,differences caused by treatment effects contribute to which of the following variances?

An analysis of variances produces df between = 3 and dfwᵢthᵢn = 24.If each treatment has the same number of participants,then how many participants are in each treatment?

Posttests are only needed if H₀ is rejected in an ANOVA comparing more than two treatments.

If an analysis of variance produces SSbetween S S _ { \text {between } }SSbetween ​ = 20 and SSwithin \text { SSwithin } SSwithin = 40,then ² = 0.50.

If an analysis of variance is used for the following data,what would be the effect of changing the value of SS2 to 100? Sample Data =15 =25 S=90 S=70

For an independent-measures ANOVA comparing three treatments with a sample of n = 5 in each treatment,what is the critical value for the F-ratio using α = .05?

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

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

SSwithin \text { SSwithin } SSwithin measures the size of the sample variances.

The larger the differences among the sample means,the larger the numerator of the F-ratio will be.

A research report presents the results of an independent-measures ANOVA as follows: F(3,28)= 5.36,p < .01.If all the samples were the same size,then each sample had n = 7 participants.

If an analysis of variance is used for the following data,what would be the effect of changing the value of M2 to 25? Sample Data =10 =20 S=90 S=70

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

A researcher reports an F-ratio with df = 1,24 for an independent-measures experiment.If all the treatments had the same number of participants,then how many individuals were in each treatment?

An analysis of variances produces dfₜₒₜₐₗ = 29 and dfwᵢthᵢn = 27.For this analysis,how many treatment conditions are being compared?

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 each of the treatment conditions,then how many individuals were in each treatment?

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?

Which of the following describes a typical distribution of F-ratios?

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

Repeated-Measures and Two-Factor Analysis of Variance

Correlation and Regression.

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

Filters

If an analysis of variance produces $S S _ { \text {between } }$ = 20 and $\text { SSwithin }$ = 40,then $If an analysis of variance produces S S _ { \text {between } } = 20 and \text { SSwithin } = 40,then ² = 0.50.$ ² = 0.50.

$\text { SSwithin }$ measures the size of the sample variances.

If an analysis of variance is used for the following data,what would be the effect of changing the value of M₂ to 25? Sample Data =10 =20 S=90 S=70