Question 1

To compute partial eta-squared,it is necessary to

Accepted Answer

A) partial out between-persons variability before computing proportion of variance 
B) partial out within-persons variability before computing proportion of variance 
C) partial out between-groups variability before computing proportion of variance 
D) partial out within-groups variability before computing proportion of variance 
A) partial out between-persons variability before computing proportion of variance 
B) partial out within-persons variability before computing proportion of variance 
C) partial out between-groups variability before computing proportion of variance 
D) partial out within-groups variability before computing proportion of variance

Question 2

For the one-way within-subjects ANOVA,the partial estimates of effect size remove,or "partial out," which source of variation?

Accepted Answer

A) between-groups 
B) within-groups 
C) between-persons 
D) error variance 
A) between-groups 
B) within-groups 
C) between-persons 
D) error variance

Question 3

A researcher conducts two studies using the one-way within-subjects ANOVA.The sum of squares total is smaller in Study 1 than in Study 2;the sum of squares between-persons and the sum of squares between-groups are the same in both studies.Using partial 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 4

Which of the following is a source of variation that is measured using the one-way within-subjects ANOVA?

Accepted Answer

A) between-groups variation 
B) within-groups variation 
C) between-persons variation 
D) all of the above 
A) between-groups variation 
B) within-groups variation 
C) between-persons variation 
D) all of the above

Question 5

A researcher computes the following one-way within-subjects ANOVA table for a study in which k = 3 and n = 12.State the decision at a .05 level of significance.

Accepted Answer

A) Reject the null hypothesis. 
B) Retain the null hypothesis. 
C) There is not enough information to answer this question. 
A) Reject the null hypothesis. 
B) Retain the null hypothesis. 
C) There is not enough information to answer this question.

Question 6

When participant responding is not consistent,the one-way within-subjects ANOVA can actually have less power to detect an effect than the one-way between-subjects ANOVA.

Accepted Answer

A) True 
 B)False

Question 7

A researcher computes the following one-way within-subjects ANOVA table.State the decision at a .05 level of significance.

Accepted Answer

A) Reject the null hypothesis. 
B) Retain the null hypothesis. 
C) There is not enough information to answer this question. 
A) Reject the null hypothesis. 
B) Retain the null hypothesis. 
C) There is not enough information to answer this question.

Question 8

A researcher records depression scores for 12 patients in each of four seasons.If depression scores for the same participants are recorded in each season,then what type of statistical design is most appropriate for this study?

Accepted Answer

A) a related samples t-test 
B) a one-way between-subjects ANOVA 
C) a one-way within-subjects ANOVA 
D) both A and C 
A) a related samples t-test 
B) a one-way between-subjects ANOVA 
C) a one-way within-subjects ANOVA 
D) both A and C

Question 9

A researcher computes a one-way within-subjects ANOVA in which k = 4 and n = 20.What are the degrees of freedom error for this test?

Accepted Answer

A) 57 
B) 79 
C) 80 
D) There is not enough information to answer this question. 
A) 57 
B) 79 
C) 80 
D) There is not enough information to answer this question.

Question 10

A researcher conducts two studies on the effectiveness of a peer mentoring program.Self-evaluation ratings among participants before,during,and after the program were measured in both studies.In Study 1,12 participants were observed,and in Study 2,16 participants were observed.If   = 3.42 in both studies,then in which study will the decision be to reject the null hypothesis at a .05 level of significance?

Accepted Answer

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

Question 11

Which post hoc test allows for the related samples t-test to be used to conduct the pairwise comparisons?

Accepted Answer

A) Tukey's HSD test 
B) Fisher's LSD test 
C) Schaffé test 
D) Bonferroni test 
A) Tukey's HSD test 
B) Fisher's LSD test 
C) Schaffé test 
D) Bonferroni test

Question 12

The Bonferroni procedure is well adapted for which of the following research designs in which the same participants are observed in each group?

Accepted Answer

A) a between-subjects design 
B) a within-subjects design 
C) an independent samples design 
D) none of the above 
A) a between-subjects design 
B) a within-subjects design 
C) an independent samples design 
D) none of the above

Question 13

A researcher computes the following one-way within-subjects ANOVA table.State the decision at a .05 level of significance.

Accepted Answer

A) Reject the null hypothesis. 
B) Retain the null hypothesis. 
C) There is not enough information to answer this question. 
A) Reject the null hypothesis. 
B) Retain the null hypothesis. 
C) There is not enough information to answer this question.

Question 14

Partial eta-squared is a more conservative measure of proportion of variance than eta-squared.

Accepted Answer

A) True 
 B)False

Question 15

A researcher observed the mating behavior of 10 porpoises in five different social conditions.What are the degrees of freedom between-groups for a one-way within-subjects ANOVA?

Accepted Answer

A) 4 
B) 9 
C) 27 
D) There is not enough information to answer this question. 
A) 4 
B) 9 
C) 27 
D) There is not enough information to answer this question.

Question 16

The following results is reported for a one-way within-subjects ANOVA: F(2,27)= 3.20,p < .05 (   = 0.14).Which value in the summary suggests that the design was within-subjects?

Accepted Answer

A) the test statistic value 
B) the degrees of freedom 
C) the p value 
D) the partial estimate for eta-squared 
A) the test statistic value 
B) the degrees of freedom 
C) the p value 
D) the partial estimate for eta-squared

Question 17

Which of the following is an assumption for the one-way within-subjects ANOVA,but not for the one-way between-subjects ANOVA?

Accepted Answer

A) normality 
B) homogeneity of variance 
C) homogeneity of covariance 
D) None of the above;each is assumed for both tests. 
A) normality 
B) homogeneity of variance 
C) homogeneity of covariance 
D) None of the above;each is assumed for both tests.

Question 18

The source of variation that is associated with differences between groups in a study is called

Accepted Answer

A) between-groups variability 
B) within-groups variability 
C) between-persons variability 
D) error variability 
A) between-groups variability 
B) within-groups variability 
C) between-persons variability 
D) error variability

Question 19

A researcher computes a one-way within-subjects ANOVA in which k = 3 and n = 10.What is the critical value for this test at a .05 level of significance?

Accepted Answer

A) 3.16 
B) 5.48 
C) 4.41 
D) 3.55 
A) 3.16 
B) 5.48 
C) 4.41 
D) 3.55

Question 20

The following results is reported for a one-way within-subjects ANOVA: F(2,27)= 3.55,p < .05 (   = -0.14).Which value in the summary cannot be correct?

Accepted Answer

A) the test statistic 
B) the p value 
C) the effect size 
D) the degrees of freedom 
A) the test statistic 
B) the p value 
C) the effect size 
D) the degrees of freedom

To compute partial eta-squared,it is necessary to

For the one-way within-subjects ANOVA,the partial estimates of effect size remove,or "partial out," which source of variation?

Which of the following is a source of variation that is measured using the one-way within-subjects ANOVA?

A researcher computes the following one-way within-subjects ANOVA table for a study in which k = 3 and n = 12.State the decision at a .05 level of significance.

When participant responding is not consistent,the one-way within-subjects ANOVA can actually have less power to detect an effect than the one-way between-subjects ANOVA.

A researcher computes the following one-way within-subjects ANOVA table.State the decision at a .05 level of significance.

A researcher records depression scores for 12 patients in each of four seasons.If depression scores for the same participants are recorded in each season,then what type of statistical design is most appropriate for this study?

A researcher computes a one-way within-subjects ANOVA in which k = 4 and n = 20.What are the degrees of freedom error for this test?

Which post hoc test allows for the related samples t-test to be used to conduct the pairwise comparisons?

The Bonferroni procedure is well adapted for which of the following research designs in which the same participants are observed in each group?

A researcher computes the following one-way within-subjects ANOVA table.State the decision at a .05 level of significance.

Partial eta-squared is a more conservative measure of proportion of variance than eta-squared.

A researcher observed the mating behavior of 10 porpoises in five different social conditions.What are the degrees of freedom between-groups for a one-way within-subjects ANOVA?

The following results is reported for a one-way within-subjects ANOVA: F(2,27)= 3.20,p < .05 ( = 0.14).Which value in the summary suggests that the design was within-subjects?

Which of the following is an assumption for the one-way within-subjects ANOVA,but not for the one-way between-subjects ANOVA?

The source of variation that is associated with differences between groups in a study is called

A researcher computes a one-way within-subjects ANOVA in which k = 3 and n = 10.What is the critical value for this test at a .05 level of significance?

The following results is reported for a one-way within-subjects ANOVA: F(2,27)= 3.55,p < .05 ( = -0.14).Which value in the summary cannot be correct?

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

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

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 13: Correlation and Linear Regression

To compute partial eta-squared,it is necessary to

For the one-way within-subjects ANOVA,the partial estimates of effect size remove,or "partial out," which source of variation?

Which of the following is a source of variation that is measured using the one-way within-subjects ANOVA?

A researcher computes the following one-way within-subjects ANOVA table for a study in which k = 3 and n = 12.State the decision at a .05 level of significance.

When participant responding is not consistent,the one-way within-subjects ANOVA can actually have less power to detect an effect than the one-way between-subjects ANOVA.

A researcher computes the following one-way within-subjects ANOVA table.State the decision at a .05 level of significance.

A researcher records depression scores for 12 patients in each of four seasons.If depression scores for the same participants are recorded in each season,then what type of statistical design is most appropriate for this study?

A researcher computes a one-way within-subjects ANOVA in which k = 4 and n = 20.What are the degrees of freedom error for this test?

Which post hoc test allows for the related samples t-test to be used to conduct the pairwise comparisons?

The Bonferroni procedure is well adapted for which of the following research designs in which the same participants are observed in each group?

A researcher computes the following one-way within-subjects ANOVA table.State the decision at a .05 level of significance.

Partial eta-squared is a more conservative measure of proportion of variance than eta-squared.

A researcher observed the mating behavior of 10 porpoises in five different social conditions.What are the degrees of freedom between-groups for a one-way within-subjects ANOVA?

The following results is reported for a one-way within-subjects ANOVA: F(2,27)= 3.20,p < .05 ( = 0.14).Which value in the summary suggests that the design was within-subjects?

Which of the following is an assumption for the one-way within-subjects ANOVA,but not for the one-way between-subjects ANOVA?

The source of variation that is associated with differences between groups in a study is called

A researcher computes a one-way within-subjects ANOVA in which k = 3 and n = 10.What is the critical value for this test at a .05 level of significance?

The following results is reported for a one-way within-subjects ANOVA: F(2,27)= 3.55,p < .05 ( = -0.14).Which value in the summary cannot be correct?

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

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

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

Filters