Exam 12: Analysis of Variance: One-Way Between-Subjects Design

A researcher assigned participants (n = 8 per group)to read vignettes describing a person engaging in either a helpful,hurtful,or neutral act.Different participants were assigned to each group and asked to rate how positively they viewed the person described in the vignette.What is the critical value for the one-way between-subjects ANOVA at a .05 level of significance?

(Multiple Choice)

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Question 61

The test statistic for a one-way between-subjects ANOVA is used to determine whether the variance associated with having different groups is significantly larger than the variance attributed to chance or error.

(True/False)

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Question 62

To compute a mean square,we divide the sum of squares by the degrees of freedom for a given source of variation.

(True/False)

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Question 63

A researcher conducts two studies on self-perception.In Study 1,24 participants rate how positively they view themselves (on a 5-point scale)in one of three groups (n = 8 per group).In Study 2,the researcher conducts a similar study,except that k = 3 and n = 8.If SS_BG = 28 and SS_E = 42 in both studies,then in which study will the decision be to reject the null hypothesis at a .05 level of significance for a one-way between-subjects ANOVA?

(Multiple Choice)

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Question 64

When the variability attributed to between groups is equal to the variability attributed to error,then the value of the test statistic for a one-way between-subjects ANOVA is ______.

(Multiple Choice)

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Question 65

Unlike $\omega$ ²,the formula for $\eta$ ² corrects for the number of groups and the size of error in its estimate of effect size.

(True/False)

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Question 66

Which of the following statements is the appropriate way to read the degrees of freedom for an ANOVA with 10 participants in each of four groups?

(Multiple Choice)

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Question 67

A "one-way" ANOVA is associated with one degree of freedom.

(True/False)

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Question 68

A researcher notes that the variability attributed to difference between group means is quite large.Which source of variation is the researcher referring to?

(Multiple Choice)

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Question 69

The test statistic for a one-way between-subjects ANOVA is the sum of squares between groups divided by the sum of squares error.

(True/False)

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Question 70

A researcher measures mating displays among 12 birds randomly assigned to be in the presence of no cue,an auditory cue,or a visual cue.The degrees of freedom for this one-way between-subjects ANOVA is 2 and 9 degrees of freedom.

(True/False)

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Question 71

For a one-way between-subjects ANOVA,a study with 3 and 36 degrees of freedom must have included four groups.

(True/False)

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Question 72

ANOVA stands for ______.

(Multiple Choice)

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Question 73

Post hoc tests are computed ______.

(Multiple Choice)

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Question 74

Without changing the value of error variance,the ______ the between-groups variability,the more likely we are to reject the null hypothesis.

(Multiple Choice)

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Question 75

To summarize the results of a one-way between-subjects ANOVA test,we report the test statistic,the degrees of freedom,and the p value.

(True/False)

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Question 76

Following a significant one-way between-subjects ANOVA in which k > 2,what is the next appropriate step?

(Multiple Choice)

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Question 77

A researcher conducts a study using the one-way between-subjects ANOVA.He computes SS_BG = 120 and SS_E = 200.What is the effect size for this test using $\eta$ ²?

(Multiple Choice)

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Question 78

Two measures of proportion of variance for the one-way between-subjects ANOVA are $\eta$ ² and $\omega$ ².

(True/False)

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Question 79

Which of the following post hoc tests is associated with the greatest power to detect an effect?

(Multiple Choice)

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Question 80

Showing 61 - 80 of 80

The test statistic for a one-way between-subjects ANOVA is used to determine whether the variance associated with having different groups is significantly larger than the variance attributed to chance or error.

To compute a mean square,we divide the sum of squares by the degrees of freedom for a given source of variation.

When the variability attributed to between groups is equal to the variability attributed to error,then the value of the test statistic for a one-way between-subjects ANOVA is ______.

Unlike $\omega$ ²,the formula for $\eta$ ² corrects for the number of groups and the size of error in its estimate of effect size.

Which of the following statements is the appropriate way to read the degrees of freedom for an ANOVA with 10 participants in each of four groups?

A "one-way" ANOVA is associated with one degree of freedom.

A researcher notes that the variability attributed to difference between group means is quite large.Which source of variation is the researcher referring to?

The test statistic for a one-way between-subjects ANOVA is the sum of squares between groups divided by the sum of squares error.

A researcher measures mating displays among 12 birds randomly assigned to be in the presence of no cue,an auditory cue,or a visual cue.The degrees of freedom for this one-way between-subjects ANOVA is 2 and 9 degrees of freedom.

For a one-way between-subjects ANOVA,a study with 3 and 36 degrees of freedom must have included four groups.

ANOVA stands for ______.

Post hoc tests are computed ______.

Without changing the value of error variance,the ______ the between-groups variability,the more likely we are to reject the null hypothesis.

To summarize the results of a one-way between-subjects ANOVA test,we report the test statistic,the degrees of freedom,and the p value.

Following a significant one-way between-subjects ANOVA in which k > 2,what is the next appropriate step?

A researcher conducts a study using the one-way between-subjects ANOVA.He computes SS_BG = 120 and SS_E = 200.What is the effect size for this test using $\eta$ ²?

Two measures of proportion of variance for the one-way between-subjects ANOVA are $\eta$ ² and $\omega$ ².

Which of the following post hoc tests is associated with the greatest power to detect an effect?

Introduction to Statistics

Summarizing Data: Frequency Distributions in Tables and Graphs

Summarizing Data: Central Tendency

Summarizing Data: Variability

Probability

Probability, normal Distributions, and Z Scores

Probability and Sampling Distributions

Hypothesis Testing: Significance,effect Size,and Power

Testing Means: One-Sample and Two-Independent-Sample T Tests

Testing Means: Truehe Related-Samples T Test

Estimation and Confidence Intervals

Analysis of Variance: One-Way Within-Subjects Repeated-Measuresdesign

Analysis of Variance: Two-Way Between-Subjects Factorial Design

Correlation

Linear Regression and Multiple Regression

Nonparametric Tests: Chi-Square Tests

Nonparametric Tests: Tests for Ordinal Data

Filters

Exam 12: Analysis of Variance: One-Way Between-Subjects Design

The test statistic for a one-way between-subjects ANOVA is used to determine whether the variance associated with having different groups is significantly larger than the variance attributed to chance or error.

To compute a mean square,we divide the sum of squares by the degrees of freedom for a given source of variation.

When the variability attributed to between groups is equal to the variability attributed to error,then the value of the test statistic for a one-way between-subjects ANOVA is ______.

Unlike ω\omegaω 2,the formula for η\etaη 2 corrects for the number of groups and the size of error in its estimate of effect size.

Which of the following statements is the appropriate way to read the degrees of freedom for an ANOVA with 10 participants in each of four groups?

A "one-way" ANOVA is associated with one degree of freedom.

A researcher notes that the variability attributed to difference between group means is quite large.Which source of variation is the researcher referring to?

The test statistic for a one-way between-subjects ANOVA is the sum of squares between groups divided by the sum of squares error.

A researcher measures mating displays among 12 birds randomly assigned to be in the presence of no cue,an auditory cue,or a visual cue.The degrees of freedom for this one-way between-subjects ANOVA is 2 and 9 degrees of freedom.

For a one-way between-subjects ANOVA,a study with 3 and 36 degrees of freedom must have included four groups.

ANOVA stands for ______.

Post hoc tests are computed ______.

Without changing the value of error variance,the ______ the between-groups variability,the more likely we are to reject the null hypothesis.

To summarize the results of a one-way between-subjects ANOVA test,we report the test statistic,the degrees of freedom,and the p value.

Following a significant one-way between-subjects ANOVA in which k > 2,what is the next appropriate step?

A researcher conducts a study using the one-way between-subjects ANOVA.He computes SSBG = 120 and SSE = 200.What is the effect size for this test using η\etaη 2?

Two measures of proportion of variance for the one-way between-subjects ANOVA are η\etaη 2 and ω\omegaω 2.

Which of the following post hoc tests is associated with the greatest power to detect an effect?

Introduction to Statistics

Summarizing Data: Frequency Distributions in Tables and Graphs

Summarizing Data: Central Tendency

Summarizing Data: Variability

Probability

Probability, normal Distributions, and Z Scores

Probability and Sampling Distributions

Hypothesis Testing: Significance,effect Size,and Power

Testing Means: One-Sample and Two-Independent-Sample T Tests

Testing Means: Truehe Related-Samples T Test

Estimation and Confidence Intervals

Analysis of Variance: One-Way Within-Subjects Repeated-Measuresdesign

Analysis of Variance: Two-Way Between-Subjects Factorial Design

Correlation

Linear Regression and Multiple Regression

Nonparametric Tests: Chi-Square Tests

Nonparametric Tests: Tests for Ordinal Data

Filters

Unlike $\omega$ ²,the formula for $\eta$ ² corrects for the number of groups and the size of error in its estimate of effect size.

A researcher conducts a study using the one-way between-subjects ANOVA.He computes SS_BG = 120 and SS_E = 200.What is the effect size for this test using $\eta$ ²?

Two measures of proportion of variance for the one-way between-subjects ANOVA are $\eta$ ² and $\omega$ ².