Question 1

The results from a two-factor ANOVA show no main effect for factor A but a significant interaction.What can you conclude based on this pattern of results?

Accepted Answer

A) ​Factor A has no effect on the participants' scores. 
B) ​Factor A may have an effect but, if so, it depends on the levels of factor B. 
C) Because the interaction is significant, factor A must also have an effect. 
D) ​The effect of factor A is constant across all levels of factor B. 
A) ​Factor A has no effect on the participants' scores. 
B) ​Factor A may have an effect but, if so, it depends on the levels of factor B. 
C) Because the interaction is significant, factor A must also have an effect. 
D) ​The effect of factor A is constant across all levels of factor B.

Question 2

Which statement accurately describes a two-factor analysis of variance?​

Accepted Answer

A) It conducts one hypothesis test and produces one F-ratio. 
B) ​It conducts two separate hypothesis tests and produces two F-ratios. 
C) It conducts three separate hypothesis tests and produces three F-ratios. 
D) It conducts three separate hypothesis tests with the number of F-ratios produced depending on the number of levels. 
A) It conducts one hypothesis test and produces one F-ratio. 
B) ​It conducts two separate hypothesis tests and produces two F-ratios. 
C) It conducts three separate hypothesis tests and produces three F-ratios. 
D) It conducts three separate hypothesis tests with the number of F-ratios produced depending on the number of levels.

Question 3

In order to determine whether factors influence or interact with each other,a researcher must use ____.​

Accepted Answer

A) ​two experiments 
B) ​a factorial design 
C) a between-subjects design 
D) ​a mixed design 
A) ​two experiments 
B) ​a factorial design 
C) a between-subjects design 
D) ​a mixed design

Question 4

The following data represent the means for each treatment condition in a two-factor experiment.What pattern of results is shown in the data?
​ A1 A2
​
​
B1
​
M = 30
​
M = 20
​
B2
​
M = 40
​
M = 10

Accepted Answer

A) ​main effects for both factors and an interaction 
B) ​main effects for both factors and no interaction 
C) a main effect for factor A, no main effect for factor B, and no interaction 
D) ​a main effect for factor A, no main effect for factor B, and no interaction 
A) ​main effects for both factors and an interaction 
B) ​main effects for both factors and no interaction 
C) a main effect for factor A, no main effect for factor B, and no interaction 
D) ​a main effect for factor A, no main effect for factor B, and no interaction

Question 5

Describe two situations in which factorial designs are commonly used.​

Accepted Answer

​There are three specific uses of factor

Question 6

The students in one gym class receive a self-esteem program as part of their sports training.To evaluate the program,a researcher measures self-esteem for the students before and after the program and compares their scores with those from another class that did not receive the program but was measured at the same two times.What kind of design is being used?

Accepted Answer

A) ​between-subjects design 
B) ​within-subjects design 
C) repeated measures design 
D) ​mixed design 
A) ​between-subjects design 
B) ​within-subjects design 
C) repeated measures design 
D) ​mixed design

Question 7

The following data show the means for four treatment conditions as well as the overall means for the columns and the rows.For these data,what numbers are compared to assess the main effect of factor A?
​ A1 A2 M = 25 M = 65
​ B1
M = 20
M = 60
M = 40 B2
M = 30
M = 70
M = 50

Accepted Answer

A) ​30; 70 
B) ​20; 30 
C) 40; 50 
D) ​25; 65 
A) ​30; 70 
B) ​20; 30 
C) 40; 50 
D) ​25; 65

Question 8

A two-factor experimental design must involve at least four different treatment conditions.

Accepted Answer

A) True 
 B)False

Question 9

What is the relationship between main effects and interactions? ____.

Accepted Answer

A) ​At least one of the factors involved in the interaction must have a main effect. 
B) ​None of the factors in the interaction can have a main effect. 
C) All of the factors involved in the interaction must have main effects. 
D) ​The existence of an interaction is independent of the main effects. 
A) ​At least one of the factors involved in the interaction must have a main effect. 
B) ​None of the factors in the interaction can have a main effect. 
C) All of the factors involved in the interaction must have main effects. 
D) ​The existence of an interaction is independent of the main effects.

Question 10

There are three treatment conditions in a 2x2x2 factorial design.

Accepted Answer

A) True 
 B)False

Question 11

In a 2 x 2 between-subjects factorial experiment,there are a total of ____ treatment conditions in the experiment,and each participant serves in ____ condition(s).​

Accepted Answer

A) ​2;1 
B) ​4;1 
C) 2;2 
D) ​4;2 
A) ​2;1 
B) ​4;1 
C) 2;2 
D) ​4;2

Question 12

How many independent variables are there in an experimental two-factor design?​

Accepted Answer

A) ​one 
B) ​two 
C) three 
D) ​four 
A) ​one 
B) ​two 
C) three 
D) ​four

Question 13

In an experiment examining the effects of task difficulty (easy/hard)for men and women,the factors are ____.

Accepted Answer

A) ​male and female 
B) ​easy and hard 
C) male, female, easy, and hard 
D) ​difficulty and gender 
A) ​male and female 
B) ​easy and hard 
C) male, female, easy, and hard 
D) ​difficulty and gender

Question 14

In a 2 x 3 between-subjects factorial experiment,there are ____ groups of participants.​

Accepted Answer

A) ​two 
B) ​three 
C) six 
D) ​eight 
A) ​two 
B) ​three 
C) six 
D) ​eight

Question 15

In a two-factor design,an interaction means that the effect of one factor depends on the levels of the second factor.​

Accepted Answer

A) True 
 B)False

Question 16

In a two-factor study,it is possible to have one between-subjects factor and one within-subjects factor.​

Accepted Answer

A) True 
 B)False

Question 17

Which outcome is possible in a 2x2 factorial design?​

Accepted Answer

A) ​four main effects and no interaction. 
B) ​four main effects and no interaction 
C) no main effect for either factor but an interaction 
D) ​four interactions 
A) ​four main effects and no interaction. 
B) ​four main effects and no interaction 
C) no main effect for either factor but an interaction 
D) ​four interactions

Question 18

A researcher who is examining the effects of temperature and humidity on the eating behavior of rats uses a factorial experiment comparing three different temperatures (70˚,80˚,and 90˚)and two humidity conditions (low and high).How many factors are in the experiment?

Accepted Answer

A) ​one 
B) ​two 
C) three 
D) ​six 
A) ​one 
B) ​two 
C) three 
D) ​six

Question 19

In a matrix representing the structure of a factorial design,the mean differences between the rows define the interaction between the factors.​

Accepted Answer

A) True 
 B)False

Question 20

It is possible for the results of a two-factor study to show an interaction even though there is no main effect for either factor.

Accepted Answer

A) True 
 B)False

The results from a two-factor ANOVA show no main effect for factor A but a significant interaction.What can you conclude based on this pattern of results?

Which statement accurately describes a two-factor analysis of variance?

In order to determine whether factors influence or interact with each other,a researcher must use ____.

The following data represent the means for each treatment condition in a two-factor experiment.What pattern of results is shown in the data? A1 A2 B1 M = 30 M = 20 B2 M = 40 M = 10

Describe two situations in which factorial designs are commonly used.

The following data show the means for four treatment conditions as well as the overall means for the columns and the rows.For these data,what numbers are compared to assess the main effect of factor A? A1 A2 M = 25 M = 65 B1 M = 20 M = 60 M = 40 B2 M = 30 M = 70 M = 50

A two-factor experimental design must involve at least four different treatment conditions.

What is the relationship between main effects and interactions? ____.

There are three treatment conditions in a 2x2x2 factorial design.

In a 2 x 2 between-subjects factorial experiment,there are a total of treatment conditions in the experiment,and each participant serves in condition(s).

How many independent variables are there in an experimental two-factor design?

In an experiment examining the effects of task difficulty (easy/hard)for men and women,the factors are ____.

In a 2 x 3 between-subjects factorial experiment,there are ____ groups of participants.

In a two-factor design,an interaction means that the effect of one factor depends on the levels of the second factor.

In a two-factor study,it is possible to have one between-subjects factor and one within-subjects factor.

Which outcome is possible in a 2x2 factorial design?

A researcher who is examining the effects of temperature and humidity on the eating behavior of rats uses a factorial experiment comparing three different temperatures (70˚,80˚,and 90˚)and two humidity conditions (low and high).How many factors are in the experiment?

In a matrix representing the structure of a factorial design,the mean differences between the rows define the interaction between the factors.

It is possible for the results of a two-factor study to show an interaction even though there is no main effect for either factor.

Introduction, Acquiring Knowledge, and the Scientific Method.

Research Ideas and Hypotheses.

Defining and Measuring Variables.

Ethics in Research.

Selecting Research Participants.

Research Strategies and Validity.

The Experimental Research Strategy.

Experimental Designs: Between Subjects Design.

Experimental Designs Within Subjects Design.

The Nonexperimental and Quasi-Experimental Strategies: Nonequivalent Group,Pre–Post,and Developmental Designs.

The Correlational Research Strategy.

The Descriptive Research Strategy.

Single-Subject Research Designs.

Statistical Evaluation of Data.

Writing an APA-Style Research Report.

Filters

Exam 11: Factorial Designs.

The results from a two-factor ANOVA show no main effect for factor A but a significant interaction.What can you conclude based on this pattern of results?

Which statement accurately describes a two-factor analysis of variance?​

In order to determine whether factors influence or interact with each other,a researcher must use ____.​

The following data represent the means for each treatment condition in a two-factor experiment.What pattern of results is shown in the data? ​ A1 A2 ​ ​ B1 ​ M = 30 ​ M = 20 ​ B2 ​ M = 40 ​ M = 10

Describe two situations in which factorial designs are commonly used.​

The following data show the means for four treatment conditions as well as the overall means for the columns and the rows.For these data,what numbers are compared to assess the main effect of factor A? ​ A1 A2 M = 25 M = 65 ​ B1 M = 20 M = 60 M = 40 B2 M = 30 M = 70 M = 50

A two-factor experimental design must involve at least four different treatment conditions.

What is the relationship between main effects and interactions? ____.

There are three treatment conditions in a 2x2x2 factorial design.

In a 2 x 2 between-subjects factorial experiment,there are a total of ____ treatment conditions in the experiment,and each participant serves in ____ condition(s).​

How many independent variables are there in an experimental two-factor design?​

In an experiment examining the effects of task difficulty (easy/hard)for men and women,the factors are ____.

In a 2 x 3 between-subjects factorial experiment,there are ____ groups of participants.​

In a two-factor design,an interaction means that the effect of one factor depends on the levels of the second factor.​

In a two-factor study,it is possible to have one between-subjects factor and one within-subjects factor.​

Which outcome is possible in a 2x2 factorial design?​

A researcher who is examining the effects of temperature and humidity on the eating behavior of rats uses a factorial experiment comparing three different temperatures (70˚,80˚,and 90˚)and two humidity conditions (low and high).How many factors are in the experiment?

In a matrix representing the structure of a factorial design,the mean differences between the rows define the interaction between the factors.​

It is possible for the results of a two-factor study to show an interaction even though there is no main effect for either factor.

Introduction, Acquiring Knowledge, and the Scientific Method.

Research Ideas and Hypotheses.

Defining and Measuring Variables.

Ethics in Research.

Selecting Research Participants.

Research Strategies and Validity.

The Experimental Research Strategy.

Experimental Designs: Between Subjects Design.

Experimental Designs Within Subjects Design.

The Nonexperimental and Quasi-Experimental Strategies: Nonequivalent Group,Pre–Post,and Developmental Designs.

The Correlational Research Strategy.

The Descriptive Research Strategy.

Single-Subject Research Designs.

Statistical Evaluation of Data.

Writing an APA-Style Research Report.

Filters

Which statement accurately describes a two-factor analysis of variance?

In order to determine whether factors influence or interact with each other,a researcher must use ____.

The following data represent the means for each treatment condition in a two-factor experiment.What pattern of results is shown in the data? A1 A2 B1 M = 30 M = 20 B2 M = 40 M = 10

Describe two situations in which factorial designs are commonly used.

The following data show the means for four treatment conditions as well as the overall means for the columns and the rows.For these data,what numbers are compared to assess the main effect of factor A? A1 A2 M = 25 M = 65 B1 M = 20 M = 60 M = 40 B2 M = 30 M = 70 M = 50

In a 2 x 2 between-subjects factorial experiment,there are a total of treatment conditions in the experiment,and each participant serves in condition(s).

How many independent variables are there in an experimental two-factor design?

In a 2 x 3 between-subjects factorial experiment,there are ____ groups of participants.

In a two-factor design,an interaction means that the effect of one factor depends on the levels of the second factor.

In a two-factor study,it is possible to have one between-subjects factor and one within-subjects factor.

Which outcome is possible in a 2x2 factorial design?

In a matrix representing the structure of a factorial design,the mean differences between the rows define the interaction between the factors.