Question 1

In a two-way ANOVA, if there is a significant interaction between Factor A and Factor B , which of the following may be true?

Accepted Answer

A)  the effect of Factor A is not the same at all levels of Factor B 
B)  The effect of Factor B is not the same at all levels of Factor A 
C)  the effects of the two Factors do not differ across levels 
D)  the effect of Factor A is not the same at all levels of Factor B and/or The effect of Factor B is not the same at all levels of Factor A 
A)  the effect of Factor A is not the same at all levels of Factor B 
B)  The effect of Factor B is not the same at all levels of Factor A 
C)  the effects of the two Factors do not differ across levels 
D)  the effect of Factor A is not the same at all levels of Factor B and/or The effect of Factor B is not the same at all levels of Factor A

Question 2

A significant interaction effect occurs when _________.

Accepted Answer

A)  there are no main effects 
B)  variable A has a main effect and variable B does not 
C)  the combined effects of variables A and B yield an unexpected effect 
D)  none of these 
A)  there are no main effects 
B)  variable A has a main effect and variable B does not 
C)  the combined effects of variables A and B yield an unexpected effect 
D)  none of these

Question 3

MScolumns is a measure of only s 2 , regardless of whether the variables have a main effect.

Accepted Answer

A) True 
 B)False

Question 4

An experiment was conducted to assess the effects of a minor tranquilizer on a performance task at different levels of stress. The levels of stress (Factor A ) were moderate and high and the levels of tranquilizer (Factor B ) were none and moderate. A two-way ANOVA was done on the data and there was a significant A x B interaction. Explain what this means.

Accepted Answer

A significant A x B interaction in a two

Question 5

Define interaction variance estimate ( MSinteraction ).

Accepted Answer

The term "interaction variance estimate"

Question 6

ΣStotal = ΣSrows + ΣScolumns + ΣSinteraction + ΣSwithin-cells .

Accepted Answer

A) True 
 B)False

Question 7

Define row variance estimate ( MSrows ).

Accepted Answer

The input question seems to be asking fo

Question 8

To answer this question, refer to the following two-way ANOVA summary table   What is the value for df within-cells ?

Accepted Answer

A)  2 
B)  1 
C)  34 
D)  24 
A)  2 
B)  1 
C)  34 
D)  24

Question 9

Define factorial experiment.

Accepted Answer

A factorial experiment is a type of expe

Question 10

Given the following data, collected from an independent groups design. When analyzing the data, assume that a = 0.05.   The value of F crit for evaluating the row column effect is _________.

Accepted Answer

A)  3.40 
B)  7.82 
C)  4.26 
D)  5.61 
A)  3.40 
B)  7.82 
C)  4.26 
D)  5.61

Question 11

Which of the following increase(s) as the effect of the A variable increases?

Accepted Answer

A)  MS  rows  
B)  MS  columns  
C)  MS  within-cells  
D)  MS  interaction  
A)  MS  rows  
B)  MS  columns  
C)  MS  within-cells  
D)  MS  interaction

Question 12

In the one-way ANOVA, the within-groups variance estimate is like _________ in two-way ANOVA.

Accepted Answer

A)  the row variance estimate 
B)  the within-cells variance estimate 
C)  the column variance estimate 
D)  the interaction variance estimate 
A)  the row variance estimate 
B)  the within-cells variance estimate 
C)  the column variance estimate 
D)  the interaction variance estimate

Question 13

In two-way ANOVA, the variability within each cell is used to produce an estimate of s 2 that is independent of any treatment effects.

Accepted Answer

A) True 
 B)False

Question 14

Define column variance estimate ( MScolumns).

Accepted Answer

The input question seems to be asking fo

Question 15

In a two-way ANOVA, how many F values are computed; what are they?

Accepted Answer

In a two-way ANOVA (Analysis of Variance

Question 16

In the two-way ANOVA, what is a main effect? What is an interaction?

Accepted Answer

In a two-way ANOVA, a main effect refers

Question 17

Given the following data, collected from an independent groups design. When analyzing the data, assume that a = 0.05.   The value of F obt for evaluating the row column effect is _________.

Accepted Answer

A)  0.66 
B)  6.23 
C)  0.29 
D)  5.28 
A)  0.66 
B)  6.23 
C)  0.29 
D)  5.28

Question 18

Define row degrees of freedom (df rows ).

Accepted Answer

The term "row degrees of freedom" typica

Question 19

Given the following data, collected from an independent groups design. When analyzing the data, assume that a = 0.05.   The conclusion regarding the interaction effect of variables A and B is _________.

Accepted Answer

A)  Retain H0 . We cannot conclude there is a significant interaction 
B)  Accept H0 . There is no interaction effect between A and B 
C)  Reject H0 . There is a significant interaction effect. 
D)  Reject H0 . There is no interaction effect between A and B 
A)  Retain H0 . We cannot conclude there is a significant interaction 
B)  Accept H0 . There is no interaction effect between A and B 
C)  Reject H0 . There is a significant interaction effect. 
D)  Reject H0 . There is no interaction effect between A and B

Question 20

Although not covered in the textbook, generalizing from one-way ANOVA, identify four variables, other than beta, that affect power, and state how power is affected by increases in each. (Remember there are two independent variables, not just one.)

Accepted Answer

The four variables, other than beta, tha

In a two-way ANOVA, if there is a significant interaction between Factor A and Factor B , which of the following may be true?

A significant interaction effect occurs when _________.

MS_columns is a measure of only s 2 , regardless of whether the variables have a main effect.

Define interaction variance estimate ( MS_interaction ).

ΣS_total = ΣS_rows + ΣS_columns + ΣS_interaction + ΣS_within-cells .

Define row variance estimate ( MS_rows ).

To answer this question, refer to the following two-way ANOVA summary table What is the value for df _within-cells ?

Define factorial experiment.

Given the following data, collected from an independent groups design. When analyzing the data, assume that a = 0.05. The value of F _crit for evaluating the row column effect is _________.

Which of the following increase(s) as the effect of the A variable increases?

In the one-way ANOVA, the within-groups variance estimate is like _________ in two-way ANOVA.

In two-way ANOVA, the variability within each cell is used to produce an estimate of s 2 that is independent of any treatment effects.

Define column variance estimate ( MS_columns).

In a two-way ANOVA, how many F values are computed; what are they?

In the two-way ANOVA, what is a main effect? What is an interaction?

Given the following data, collected from an independent groups design. When analyzing the data, assume that a = 0.05. The value of F _obt for evaluating the row column effect is _________.

Define row degrees of freedom (df _rows ).

Given the following data, collected from an independent groups design. When analyzing the data, assume that a = 0.05. The conclusion regarding the interaction effect of variables A and B is _________.

Although not covered in the textbook, generalizing from one-way ANOVA, identify four variables, other than beta, that affect power, and state how power is affected by increases in each. (Remember there are two independent variables, not just one.)

Statistics and Scientific Method

Basic Mathematical and Measurement Concepts

Frequency Distributions

Measures of Central Tendency and Variability

The Normal Curve and Standard Scores

Correlation

Linear Regression

Random Sampling and Probability

Binomial Distribution

Introduction to Hypothesis Testing: Using the Sign Test

Power

Sampling Distributions, Sampling Distribution of the Mean: the Normal Deviate Z Test

Students T Test for Single Samples

Students T Test for Correlated and Independent Groups

Introduction to the Analysis of Variance

Chi-Square and Other Nonparametric Tests

Filters

Exam 16: Introduction to the Two-Way Analysis of Variance

In a two-way ANOVA, if there is a significant interaction between Factor A and Factor B , which of the following may be true?

A significant interaction effect occurs when _________.

MScolumns is a measure of only s 2 , regardless of whether the variables have a main effect.

Define interaction variance estimate ( MSinteraction ).

ΣStotal = ΣSrows + ΣScolumns + ΣSinteraction + ΣSwithin-cells .

Define row variance estimate ( MSrows ).

To answer this question, refer to the following two-way ANOVA summary table What is the value for df within-cells ?

Define factorial experiment.

Given the following data, collected from an independent groups design. When analyzing the data, assume that a = 0.05. The value of F crit for evaluating the row column effect is _________.

Which of the following increase(s) as the effect of the A variable increases?

In the one-way ANOVA, the within-groups variance estimate is like _________ in two-way ANOVA.

In two-way ANOVA, the variability within each cell is used to produce an estimate of s 2 that is independent of any treatment effects.

Define column variance estimate ( MScolumns).

In a two-way ANOVA, how many F values are computed; what are they?

In the two-way ANOVA, what is a main effect? What is an interaction?

Given the following data, collected from an independent groups design. When analyzing the data, assume that a = 0.05. The value of F obt for evaluating the row column effect is _________.

Define row degrees of freedom (df rows ).

Given the following data, collected from an independent groups design. When analyzing the data, assume that a = 0.05. The conclusion regarding the interaction effect of variables A and B is _________.

Although not covered in the textbook, generalizing from one-way ANOVA, identify four variables, other than beta, that affect power, and state how power is affected by increases in each. (Remember there are two independent variables, not just one.)

Statistics and Scientific Method

Basic Mathematical and Measurement Concepts

Frequency Distributions

Measures of Central Tendency and Variability

The Normal Curve and Standard Scores

Correlation

Linear Regression

Random Sampling and Probability

Binomial Distribution

Introduction to Hypothesis Testing: Using the Sign Test

Power

Sampling Distributions, Sampling Distribution of the Mean: the Normal Deviate Z Test

Students T Test for Single Samples

Students T Test for Correlated and Independent Groups

Introduction to the Analysis of Variance

Chi-Square and Other Nonparametric Tests

Filters

MS_columns is a measure of only s 2 , regardless of whether the variables have a main effect.

Define interaction variance estimate ( MS_interaction ).

ΣS_total = ΣS_rows + ΣS_columns + ΣS_interaction + ΣS_within-cells .

Define row variance estimate ( MS_rows ).

To answer this question, refer to the following two-way ANOVA summary table What is the value for df _within-cells ?

Given the following data, collected from an independent groups design. When analyzing the data, assume that a = 0.05. The value of F _crit for evaluating the row column effect is _________.

Define column variance estimate ( MS_columns).

Given the following data, collected from an independent groups design. When analyzing the data, assume that a = 0.05. The value of F _obt for evaluating the row column effect is _________.

Define row degrees of freedom (df _rows ).