Question 1

Computing a one-way between-subjects ANOVA is appropriate when

Accepted Answer

A) different participants are observed one time in each of two or more groups for one factor 
B) the same participants are observed in each of two or more groups for one factor 
C) the levels of one or more factors are manipulated 
D) all of the above 
A) different participants are observed one time in each of two or more groups for one factor 
B) the same participants are observed in each of two or more groups for one factor 
C) the levels of one or more factors are manipulated 
D) all of the above

Question 2

A researcher conducts two studies using the one-way between-subjects ANOVA.The sum of squares between groups is larger in Study 1 than in Study 2;the sum of squares total is smaller in Study 1 than in Study 2.Using eta-squared,in which study will the effect size be larger?

Accepted Answer

A) Study 1 
B) Study 2 
C) There is not enough information to answer this question. 
A) Study 1 
B) Study 2 
C) There is not enough information to answer this question.

Question 3

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

Accepted Answer

A) larger 
B) smaller 
A) larger 
B) smaller

Question 4

Which of the following is an assumption for computing a one-way between-subjects ANOVA?

Accepted Answer

A) The population being sampled from is normally distributed. 
B) Participants were selected to participate using a random procedure. 
C) One observation has no effect on the likelihood of another observation. 
D) all of the above 
A) The population being sampled from is normally distributed. 
B) Participants were selected to participate using a random procedure. 
C) One observation has no effect on the likelihood of another observation. 
D) all of the above

Question 5

The source of variability associated with error variance in the one-way between-subjects ANOVA is called

Accepted Answer

A) between-groups variability 
B) within-groups variability 
C) degrees of freedom 
D) both A and B 
A) between-groups variability 
B) within-groups variability 
C) degrees of freedom 
D) both A and B

Question 6

A researcher conducts two studies on child health.In Study 1,30 children consume either a low-,moderate-,or high-fat meal (n = 10 per group).In Study 2,the researcher conducts the same study,except that a No Meal control group is added,with n = 10 in each group.If   = 3.11 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?

Accepted Answer

A) Study 1 
B) Study 2 
C) both 
D) none 
A) Study 1 
B) Study 2 
C) both 
D) none

Question 7

Which measure of proportion of variance tends to overestimate the size of an effect in a population?

Accepted Answer

A) eta-squared 
B) omega-squared 
C) none of the above 
A) eta-squared 
B) omega-squared 
C) none of the above

Question 8

A post hoc test is only necessary following a decision to retain the null hypothesis.

Accepted Answer

A) True 
 B)False

Question 9

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.

Accepted Answer

A) True 
 B)False

Question 10

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.

Accepted Answer

A) True 
 B)False

Question 11

A researcher measures attractiveness ratings of a male confederate among 30 women who were told the confederate was either single,dating,or married (n = 10 per group).What are the degrees of freedom for error for the one-way between-subjects ANOVA?

Accepted Answer

A) 2 
B) 3 
C) 27 
D) 28 
A) 2 
B) 3 
C) 27 
D) 28

Question 12

A mean square is a sample variance.

Accepted Answer

A) True 
 B)False

Question 13

A significant ANOVA indicates that all pairs of group means significantly differ.

Accepted Answer

A) True 
 B)False

Question 14

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

Accepted Answer

A) True 
 B)False

Question 15

Using a between-subjects ANOVA design,

Accepted Answer

A)    participants are each observed one time 
B) n participants are observed k times 
C) data are not analyzed between groups 
D) the same participants are observed in each group 
A)    participants are each observed one time 
B) n participants are observed k times 
C) data are not analyzed between groups 
D) the same participants are observed in each group

Question 16

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

Accepted Answer

A) Summarize the data;no further tests are required. 
B) Interpret the data;no further tests are required. 
C) Conduct post hoc tests. 
D) both A and B 
A) Summarize the data;no further tests are required. 
B) Interpret the data;no further tests are required. 
C) Conduct post hoc tests. 
D) both A and B

Question 17

For an analysis of variance,the term "one-way" refers to

Accepted Answer

A) the number of factors in the design 
B) the number of statistical tests in the design 
C) the number of ways that the data can be analyzed 
D) the direction that traffic should follow on a road 
A) the number of factors in the design 
B) the number of statistical tests in the design 
C) the number of ways that the data can be analyzed 
D) the direction that traffic should follow on a road

Question 18

Cohen's d is the most commonly reported measure of effect size for the one-way between-subjects ANOVA.

Accepted Answer

A) True 
 B)False

Question 19

A researcher conducts a study in which k = 4 and n = 22 in each group.What are the degrees of freedom for the one-way between-subjects ANOVA?

Accepted Answer

A) (3,84) 
B) (4,88) 
C) (4,22) 
D) (3,18) 
A) (3,84) 
B) (4,88) 
C) (4,22) 
D) (3,18)

Question 20

Post hoc tests control for the total alpha level for a series of tests conducted on the same data.

Accepted Answer

A) True 
 B)False

Computing a one-way between-subjects ANOVA is appropriate when

A researcher conducts two studies using the one-way between-subjects ANOVA.The sum of squares between groups is larger in Study 1 than in Study 2;the sum of squares total is smaller in Study 1 than in Study 2.Using eta-squared,in which study will the effect size be larger?

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

Which of the following is an assumption for computing a one-way between-subjects ANOVA?

The source of variability associated with error variance in the one-way between-subjects ANOVA is called

Which measure of proportion of variance tends to overestimate the size of an effect in a population?

A post hoc test is only necessary following a decision to retain the null hypothesis.

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

A researcher measures attractiveness ratings of a male confederate among 30 women who were told the confederate was either single,dating,or married (n = 10 per group).What are the degrees of freedom for error for the one-way between-subjects ANOVA?

A mean square is a sample variance.

A significant ANOVA indicates that all pairs of group means significantly differ.

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

Using a between-subjects ANOVA design,

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

For an analysis of variance,the term "one-way" refers to

Cohen's d is the most commonly reported measure of effect size for the one-way between-subjects ANOVA.

A researcher conducts a study in which k = 4 and n = 22 in each group.What are the degrees of freedom for the one-way between-subjects ANOVA?

Post hoc tests control for the total alpha level for a series of tests conducted on the same data.

Introduction to Statistics

Summarizing Data: Frequency Distributions in

Summarizing Data: Central Tendency

Summarizing Data: Variability

Probability, Normal Distributions, and Z Scores

Characteristics of the Sample Mean

Hypothesis Testing: Significance, Effect Size, and Power

Testing Means: One-Sample T Test With Confidence Intervals

Testing Means: Two- Independent-Sample T Test With Confidence Intervals

Testing Means: Related-Samples T Test With Confidence Intervals

One-Way Analysis of Variance: Between- Subjects and Within- Subjects Repeated- Measures Designs

Correlation and Linear Regression

Chi-Square Tests: Goodness of Fit and the Test for Independence

Nonparametric Tests for Ordinal Data: Understanding and Interpretation

Chi-Square Tests: Goodness-of-Fit and Independence

Understanding Regression Analysis

Understanding Correlation Coefficients in Statistical Analysis

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Exam 12: Two-Way Analysis of Variance: Between-Subjects Factorial Design

Computing a one-way between-subjects ANOVA is appropriate when

A researcher conducts two studies using the one-way between-subjects ANOVA.The sum of squares between groups is larger in Study 1 than in Study 2;the sum of squares total is smaller in Study 1 than in Study 2.Using eta-squared,in which study will the effect size be larger?

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

Which of the following is an assumption for computing a one-way between-subjects ANOVA?

The source of variability associated with error variance in the one-way between-subjects ANOVA is called

Which measure of proportion of variance tends to overestimate the size of an effect in a population?

A post hoc test is only necessary following a decision to retain the null hypothesis.

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

A researcher measures attractiveness ratings of a male confederate among 30 women who were told the confederate was either single,dating,or married (n = 10 per group).What are the degrees of freedom for error for the one-way between-subjects ANOVA?

A mean square is a sample variance.

A significant ANOVA indicates that all pairs of group means significantly differ.

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

Using a between-subjects ANOVA design,

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

For an analysis of variance,the term "one-way" refers to

Cohen's d is the most commonly reported measure of effect size for the one-way between-subjects ANOVA.

A researcher conducts a study in which k = 4 and n = 22 in each group.What are the degrees of freedom for the one-way between-subjects ANOVA?

Post hoc tests control for the total alpha level for a series of tests conducted on the same data.

Introduction to Statistics

Summarizing Data: Frequency Distributions in

Summarizing Data: Central Tendency

Summarizing Data: Variability

Probability, Normal Distributions, and Z Scores

Characteristics of the Sample Mean

Hypothesis Testing: Significance, Effect Size, and Power

Testing Means: One-Sample T Test With Confidence Intervals

Testing Means: Two- Independent-Sample T Test With Confidence Intervals

Testing Means: Related-Samples T Test With Confidence Intervals

One-Way Analysis of Variance: Between- Subjects and Within- Subjects Repeated- Measures Designs

Correlation and Linear Regression

Chi-Square Tests: Goodness of Fit and the Test for Independence

Nonparametric Tests for Ordinal Data: Understanding and Interpretation

Chi-Square Tests: Goodness-of-Fit and Independence

Understanding Regression Analysis

Understanding Correlation Coefficients in Statistical Analysis

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