Question 1

Partial estimates of proportion of variance are used for a one-way between-subjects ANOVA.

Accepted Answer

A) True 
 B)False

Question 2

A researcher computes a one-way within-subjects ANOVA,thus:

Accepted Answer

A) The same participants were observed in each group. 
B) At least two groups were observed in the study. 
C) A repeated measures design was likely used. 
D) All of the above.

Question 3

A researcher computes a one-way within-subjects ANOVA using a sample of 8 participants.If the degrees of freedom error is 14,then how many groups were included in this study?

Accepted Answer

A) 2 
B) 3 
C) 4 
D) 5

Question 4

The test statistic for a one-way within-subjects ANOVA is mean square between groups divided by mean square error.

Accepted Answer

A) True 
 B)False

Question 5

A researcher conducts a one-way within-subjects ANOVA in which k = 3 and n = 10.She computes  = 120,  = 198,and  = 518.What is the effect size for this test using omega-squared?

Accepted Answer

A) 0.637 
B) 0.377 
C) 0.298 
D) There is not enough information to answer this question.

Question 6

A researcher conducts two studies.In Study 1,she recorded the amount consumed (in calories)among 8 participants observed at three meal times (breakfast,lunch,and dinner).In Study 2,she conducted the same study,except that n = 12 participants observed at each of three meal times.Which study is associated with a larger value for degrees of freedom between-groups for a one-way within-subjects ANOVA?

Accepted Answer

A) Study 1 
B) Study 2 
C) The degrees of freedom between-groups are the same in each study. 
D) There is not enough information to answer this question.

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.

Question 8

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

Question 9

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

Question 10

A one-way within-subjects ANOVA is typically associated with ______ power than the one-way between-subjects ANOVA.

Accepted Answer

A) smaller 
B) larger 
C) more significant 
D) depleted

Question 11

The term "within-subjects" refers to

Accepted Answer

A) observing the same participants in each group 
B) observing different participants in each group 
C) the type of post hoc test conducted 
D) the type of effect size estimate measured

Question 12

If participant responding is consistent between groups,then the one-way within-subjects ANOVA will have higher power to detect an effect compared with the one-way between-subjects ANOVA.

Accepted Answer

A) True 
 B)False

Question 13

If 12 participants are observe din each of 4 groups,then the degrees of freedom between-persons is equal to 11.

Accepted Answer

A) True 
 B)False

Question 14

A one-way within-subjects ANOVA would be an appropriate statistical test when n participants are observed k times.

Accepted Answer

A) True 
 B)False

Question 15

A researcher measures anxiety levels among participants in the presence and absence of a fearful stimulus.If the same participants are observed in each group,then what type of statistical design is 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

Question 16

Partial estimates of effect size make the denominator ________ because the between-persons variability is removed.

Accepted Answer

A) larger 
B) smaller 
C) reciprocal 
D) equal to 0

Question 17

With a small number of comparisons,the Bonferroni test is an appropriate post hoc test following a significant one-way within-subjects ANOVA.

Accepted Answer

A) True 
 B)False

Question 18

"Within-subjects" is also called

Accepted Answer

A) Between-subjects 
B) Within-groups 
C) Repeated measures 
D) Random sampling

Question 19

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.

Question 20

We make two hypothesis tests using the one-way within-subjects ANOVA: one for the between-groups effect,and one for the within-groups effect.

Accepted Answer

A) True 
 B)False

Exam 13: Analysis of Variance: One-Way Within-Subjects Repeated Measures Design

Partial estimates of proportion of variance are used for a one-way between-subjects ANOVA.

A researcher computes a one-way within-subjects ANOVA,thus:

A researcher computes a one-way within-subjects ANOVA using a sample of 8 participants.If the degrees of freedom error is 14,then how many groups were included in this study?

The test statistic for a one-way within-subjects ANOVA is mean square between groups divided by mean square error.

A researcher conducts a one-way within-subjects ANOVA in which k = 3 and n = 10.She computes = 120, = 198,and = 518.What is the effect size for this test using omega-squared?

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

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?

To compute partial eta-squared,it is necessary to

A one-way within-subjects ANOVA is typically associated with ______ power than the one-way between-subjects ANOVA.

The term "within-subjects" refers to

If participant responding is consistent between groups,then the one-way within-subjects ANOVA will have higher power to detect an effect compared with the one-way between-subjects ANOVA.

If 12 participants are observe din each of 4 groups,then the degrees of freedom between-persons is equal to 11.

A one-way within-subjects ANOVA would be an appropriate statistical test when n participants are observed k times.

A researcher measures anxiety levels among participants in the presence and absence of a fearful stimulus.If the same participants are observed in each group,then what type of statistical design is appropriate for this study?

Partial estimates of effect size make the denominator ________ because the between-persons variability is removed.

With a small number of comparisons,the Bonferroni test is an appropriate post hoc test following a significant one-way within-subjects ANOVA.

"Within-subjects" is also called

We make two hypothesis tests using the one-way within-subjects ANOVA: one for the between-groups effect,and one for the within-groups effect.