Question 1

In a two-way ANOVA,the interaction effect is the

Accepted Answer

A) effect of changing the levels of one factor on the dependent scores. 
B) effect of changing the levels of one factor on the dependent scores,ignoring all other factors in the study. 
C) extent to which the influence one factor has on scores depends on the level of the other factor. 
D) effect on the independent variables of changing the levels of a factor. 
A) effect of changing the levels of one factor on the dependent scores. 
B) effect of changing the levels of one factor on the dependent scores,ignoring all other factors in the study. 
C) extent to which the influence one factor has on scores depends on the level of the other factor. 
D) effect on the independent variables of changing the levels of a factor.

Question 2

If     ,   ,   and N = 30,what is   ?

Accepted Answer

A) 9.97 
B) 6.42 
C) 4.97 
D) 2.61 
A) 9.97 
B) 6.42 
C) 4.97 
D) 2.61

Question 3

To graph a main effect from a two-way ANOVA,the _____ is (are)plotted along the X axis,the _____ is (are)plotted along the Y axis,and the _____ is (are)plotted in the graph.

Accepted Answer

A) levels of a factor;dependent variable;main effect means 
B) dependent variable;levels of a factor;main effects means 
C) levels of a factor;dependent variable;cell means 
D) levels of one factor;levels of the other factor;dependent variable 
A) levels of a factor;dependent variable;main effect means 
B) dependent variable;levels of a factor;main effects means 
C) levels of a factor;dependent variable;cell means 
D) levels of one factor;levels of the other factor;dependent variable

Question 4

When an experiment design has two factors and both factors are tested using related samples,we should perform a

Accepted Answer

A) two-way within-subjects ANOVA. 
B) two-way between-subjects ANOVA. 
C) two-way mixed-design ANOVA. 
D) two-way dependent-factors ANOVA. 
A) two-way within-subjects ANOVA. 
B) two-way between-subjects ANOVA. 
C) two-way mixed-design ANOVA. 
D) two-way dependent-factors ANOVA.

Question 5

A study investigated whether taking a test in the same room in which a person studies helps performance on the test.The means are below.Which of the graphs correctly portrays the interaction?

Accepted Answer

A) Graph A 
B) Graph B 
C) Graph C 
D) Graph D 
A) Graph A 
B) Graph B 
C) Graph C 
D) Graph D

Question 6

For the following two-way ANOVA summary table,what are the appropriate MS values?

Accepted Answer

A) a 
B) b 
C) c 
D) d 
A) a 
B) b 
C) c 
D) d

Question 7

The primary interpretation of a two-way ANOVA rests on the interpretation of the

Accepted Answer

A) main effects. 
B) ANOVA summary table. 
C) interaction effect,if it is significant. 
D) means for the main effects. 
A) main effects. 
B) ANOVA summary table. 
C) interaction effect,if it is significant. 
D) means for the main effects.

Question 8

Sarah Ann designed,conducted,analyzed,wrote,and published an experiment.In the 2 x 4 ANOVA,the F value for Art Medium was   ,indicating a significant difference in the Time it took to produce works of art using different media.The F value for Size of the art work was   ,indicating a nonsignificant finding.The interaction also was nonsignificant.What was the dependent variable?

Accepted Answer

A) Art Medium 
B) Time 
C) Size 
D) Quality 
A) Art Medium 
B) Time 
C) Size 
D) Quality

Question 9

A confounded comparison occurs in comparing two cell means when

Accepted Answer

A) there are unequal ns in the cells. 
B) the two cells differ along one factor. 
C) the two cells differ along more than one factor. 
D) there are unequal ns in the factors. 
A) there are unequal ns in the cells. 
B) the two cells differ along one factor. 
C) the two cells differ along more than one factor. 
D) there are unequal ns in the factors.

Question 10

Sharon has conducted a study on the effectiveness of a drug for obsessive-compulsive disorder (OCD).Her drug levels are 0 mg. ,100 mg. ,and 500 mg.She also has included a second factor of therapy versus no therapy.Sharon already has computed the total of the scores in each treatment.These are given below,along with the sum of the scores for every measurement in the study (   ).Sharon had 10 participants in each treatment condition.What is her   ?

Accepted Answer

A) 7.25 
B) 34.64 
C) 45.60 
D) 87.01 
A) 7.25 
B) 34.64 
C) 45.60 
D) 87.01

Question 11

If     ,   ,and N = 30,what is   ?

Accepted Answer

A) 4.97 
B) 23.97 
C) 9.97 
D) 52.47 
A) 4.97 
B) 23.97 
C) 9.97 
D) 52.47

Question 12

Sharon has conducted a study on the effectiveness of a drug for obsessive-compulsive disorder (OCD).Her drug levels are 0 mg. ,100 mg. ,and 500 mg.She also has included a second factor of therapy versus no therapy.Sharon already has computed the total of the scores in each treatment.These are given below,along with the sum of the scores for every measurement in the study (   ).Sharon had 10 participants in each treatment condition.What is her   (drug level)?

Accepted Answer

A) 7.25 
B) 34.64 
C) 45.60 
D) 87.01 
A) 7.25 
B) 34.64 
C) 45.60 
D) 87.01

Question 13

If     ,   ,   and N = 30,what is   ?

Accepted Answer

A) 9.97 
B) 6.42 
C) 4.97 
D) 2.61 
A) 9.97 
B) 6.42 
C) 4.97 
D) 2.61

Question 14

In a 3 F1F1F1S1F1F1F10 4 design with four participants per cell,the degrees of freedom to use in looking up the   for the interaction effect would be

Accepted Answer

A) 2,36. 
B) 4,48. 
C) 6,36. 
D) 6,48. 
A) 2,36. 
B) 4,48. 
C) 6,36. 
D) 6,48.

Question 15

A study investigated the influence of age and time pressure on creativity.Summary statistics are presented below.There was a significant main effect of time pressure.With   = 2.89,compute the HSD for the difference between 30 seconds and 2 minutes.Use F1F1F1S1F1F1F10 = 0.05.

Accepted Answer

A) 0.37 
B) 0.72 
C) 1.04 
D) 1.76 
A) 0.37 
B) 0.72 
C) 1.04 
D) 1.76

Question 16

In a two-way ANOVA,the HSDs for the two main effects will

Accepted Answer

A) always be the same. 
B) never be the same. 
C) be different if their   values are different. 
D) be different if their ks or ns are different. 
A) always be the same. 
B) never be the same. 
C) be different if their   values are different. 
D) be different if their ks or ns are different.

Question 17

A complete factorial design occurs when

Accepted Answer

A) all levels of one factor are combined with all levels of the other factor. 
B) all levels of one factor are not combined with all levels of the other factor. 
C) the researcher is finished collecting all the data from a two-factor study. 
D) all statistical analyses,including post hoc comparisons and the calculation of ,   are completed. 
A) all levels of one factor are combined with all levels of the other factor. 
B) all levels of one factor are not combined with all levels of the other factor. 
C) the researcher is finished collecting all the data from a two-factor study. 
D) all statistical analyses,including post hoc comparisons and the calculation of ,   are completed.

Question 18

Usually the effect size for any significant effects in a two-way ANOVA is determined by computing ______,the proportion of variance accounted for in the sample.

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 19

If     ,   ,and N = 30,what is   ?

Accepted Answer

A) 4.97 
B) 23.97 
C) 9.97 
D) 52.47 
A) 4.97 
B) 23.97 
C) 9.97 
D) 52.47

Question 20

A study investigated the influence of age and time pressure on creativity.The HSD for the interaction effect was 1.76.The table below shows the absolute differences between the cell means.Where are the significant differences?

Accepted Answer

A) Between the mean for participants Over 65 at the 30-sec time pressure and the mean for Over 65 at the 2-min time pressure. 
B) (1)Between the mean for participants Over 65 at the 30-sec time pressure and the mean for Over 65 at the 2-min time pressure,and (2)between the mean for the College-Age group at the 30-sec time pressure and the mean for the Over 65 group at the 30-sec time pressure. 
C) None of the cells are significantly different. 
D) All of the cells are significantly different. 
A) Between the mean for participants Over 65 at the 30-sec time pressure and the mean for Over 65 at the 2-min time pressure. 
B) (1)Between the mean for participants Over 65 at the 30-sec time pressure and the mean for Over 65 at the 2-min time pressure,and (2)between the mean for the College-Age group at the 30-sec time pressure and the mean for the Over 65 group at the 30-sec time pressure. 
C) None of the cells are significantly different. 
D) All of the cells are significantly different.

In a two-way ANOVA,the interaction effect is the

If , , and N = 30,what is ?

To graph a main effect from a two-way ANOVA,the ___ is (are)plotted along the X axis,the _ is (are)plotted along the Y axis,and the ___ is (are)plotted in the graph.

When an experiment design has two factors and both factors are tested using related samples,we should perform a

A study investigated whether taking a test in the same room in which a person studies helps performance on the test.The means are below.Which of the graphs correctly portrays the interaction?

For the following two-way ANOVA summary table,what are the appropriate MS values?

The primary interpretation of a two-way ANOVA rests on the interpretation of the

A confounded comparison occurs in comparing two cell means when

If , ,and N = 30,what is ?

If , , and N = 30,what is ?

In a 3  4 design with four participants per cell,the degrees of freedom to use in looking up the for the interaction effect would be

A study investigated the influence of age and time pressure on creativity.Summary statistics are presented below.There was a significant main effect of time pressure.With = 2.89,compute the HSD for the difference between 30 seconds and 2 minutes.Use  = 0.05.

In a two-way ANOVA,the HSDs for the two main effects will

A complete factorial design occurs when

Usually the effect size for any significant effects in a two-way ANOVA is determined by computing ______,the proportion of variance accounted for in the sample.

If , ,and N = 30,what is ?

A study investigated the influence of age and time pressure on creativity.The HSD for the interaction effect was 1.76.The table below shows the absolute differences between the cell means.Where are the significant differences?

Introduction to Statistics

Statistics and the Research Process

Frequency Distributions and Percentiles

Measures of Central Tendency;the Mean, median, and Mode

Measures of Variability: Range, variance, and Standard Deviation

Z-Scores and the Normal Curve

The Correlation Coefficient

Linear Regression

Using Probability to Make Decisions About Data

Introduction to Hypothesis Testing

Performing the One-Sample T-Test and Testing Correlation Coefficients

The Two-Sample T-Test

The One-Way Analysis of Variance

Chi Square and Other Nonparametric Procedures

Filters

Exam 14: The Two-Way Analysis of Variance

In a two-way ANOVA,the interaction effect is the

If , , and N = 30,what is ?

To graph a main effect from a two-way ANOVA,the _____ is (are)plotted along the X axis,the _____ is (are)plotted along the Y axis,and the _____ is (are)plotted in the graph.

When an experiment design has two factors and both factors are tested using related samples,we should perform a

A study investigated whether taking a test in the same room in which a person studies helps performance on the test.The means are below.Which of the graphs correctly portrays the interaction?

For the following two-way ANOVA summary table,what are the appropriate MS values?

The primary interpretation of a two-way ANOVA rests on the interpretation of the

A confounded comparison occurs in comparing two cell means when

If , ,and N = 30,what is ?

If , , and N = 30,what is ?

In a 3  4 design with four participants per cell,the degrees of freedom to use in looking up the for the interaction effect would be

A study investigated the influence of age and time pressure on creativity.Summary statistics are presented below.There was a significant main effect of time pressure.With = 2.89,compute the HSD for the difference between 30 seconds and 2 minutes.Use  = 0.05.

In a two-way ANOVA,the HSDs for the two main effects will

A complete factorial design occurs when

Usually the effect size for any significant effects in a two-way ANOVA is determined by computing ______,the proportion of variance accounted for in the sample.

If , ,and N = 30,what is ?

A study investigated the influence of age and time pressure on creativity.The HSD for the interaction effect was 1.76.The table below shows the absolute differences between the cell means.Where are the significant differences?

Introduction to Statistics

Statistics and the Research Process

Frequency Distributions and Percentiles

Measures of Central Tendency;the Mean, median, and Mode

Measures of Variability: Range, variance, and Standard Deviation

Z-Scores and the Normal Curve

The Correlation Coefficient

Linear Regression

Using Probability to Make Decisions About Data

Introduction to Hypothesis Testing

Performing the One-Sample T-Test and Testing Correlation Coefficients

The Two-Sample T-Test

The One-Way Analysis of Variance

Chi Square and Other Nonparametric Procedures

Filters

To graph a main effect from a two-way ANOVA,the ___ is (are)plotted along the X axis,the _ is (are)plotted along the Y axis,and the ___ is (are)plotted in the graph.