Question 1

An advantage of holding a variable constant rather than using random assignment to form your groups is that

Accepted Answer

A) holding a variable constant reduces error due to participant differences. 
B) holding a variable constant is easier than randomization. 
C) holding a variable constant guarantees that there is no systematic relationship between participant characteristics and the treatment conditions. 
D) holding a variable constant ensures a nonbiased sample. 
A) holding a variable constant reduces error due to participant differences. 
B) holding a variable constant is easier than randomization. 
C) holding a variable constant guarantees that there is no systematic relationship between participant characteristics and the treatment conditions. 
D) holding a variable constant ensures a nonbiased sample.

Question 2

Describe the advantages and disadvantages of holding a participant characteristic constant in a between-subjects experiment.

Accepted Answer

The advantage of holding a variable cons

Question 3

Randomizing a variable across treatments guarantees that the variable cannot become a confounding variable.

Accepted Answer

A) True 
 B)False

Question 4

Which of the following is NOT a method for trying to prevent a participant characteristic (such as age or gender)from becoming a confounding variable in a between-subjects experiment?

Accepted Answer

A) Hold the participant characteristic constant. 
B) Randomly assign participants to treatment conditions. 
C) Randomly select the participants from the population. 
D) Match the groups with respect to the participant characteristic. 
A) Hold the participant characteristic constant. 
B) Randomly assign participants to treatment conditions. 
C) Randomly select the participants from the population. 
D) Match the groups with respect to the participant characteristic.

Question 5

Create an example of a between-subjects experiment.Identify the independent and dependent variables and briefly describe the experiment.Indicate the number of levels of the independent variable and identify them.

Accepted Answer

Student answers will vary but should all

Question 6

In a between-subjects design,large individual differences can lead to

Accepted Answer

A) large variance within treatments. 
B) small variance within treatments. 
C) several independent variables. 
D) several dependent variables. 
A) large variance within treatments. 
B) small variance within treatments. 
C) several independent variables. 
D) several dependent variables.

Question 7

A limitation of a single-factor multiple group design is that

Accepted Answer

A) the mean differences between the groups become smaller as more groups are used. 
B) it is simple to interpret. 
C) it increases the chances of demonstrating a significant mean difference. 
D) it may not provide a complete picture of the relationship between the variables. 
A) the mean differences between the groups become smaller as more groups are used. 
B) it is simple to interpret. 
C) it increases the chances of demonstrating a significant mean difference. 
D) it may not provide a complete picture of the relationship between the variables.

An advantage of holding a variable constant rather than using random assignment to form your groups is that

Describe the advantages and disadvantages of holding a participant characteristic constant in a between-subjects experiment.

Randomizing a variable across treatments guarantees that the variable cannot become a confounding variable.

Which of the following is NOT a method for trying to prevent a participant characteristic (such as age or gender)from becoming a confounding variable in a between-subjects experiment?

Create an example of a between-subjects experiment.Identify the independent and dependent variables and briefly describe the experiment.Indicate the number of levels of the independent variable and identify them.

In a between-subjects design,large individual differences can lead to

A limitation of a single-factor multiple group design is that

Introduction, Acquiring Knowledge, and the Scientific Method

Research Ideas

Defining and Measuring Variables

Ethics in Research

Selecting Research Participants

Research Strategies and Validity

The Experimental Research Strategy

Experimental Designs: Within-Subjects Design

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

Factorial Designs

The Correlational Research Strategy

Descriptive Research Strategy

Single-Subject Research Designs

Statistical Evaluation of Data

Writing a Research Report

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Exam 8: Experimental Designs: Between-Subjects Design

An advantage of holding a variable constant rather than using random assignment to form your groups is that

Describe the advantages and disadvantages of holding a participant characteristic constant in a between-subjects experiment.

Randomizing a variable across treatments guarantees that the variable cannot become a confounding variable.

Which of the following is NOT a method for trying to prevent a participant characteristic (such as age or gender)from becoming a confounding variable in a between-subjects experiment?

Create an example of a between-subjects experiment.Identify the independent and dependent variables and briefly describe the experiment.Indicate the number of levels of the independent variable and identify them.

In a between-subjects design,large individual differences can lead to

A limitation of a single-factor multiple group design is that

Introduction, Acquiring Knowledge, and the Scientific Method

Research Ideas

Defining and Measuring Variables

Ethics in Research

Selecting Research Participants

Research Strategies and Validity

The Experimental Research Strategy

Experimental Designs: Within-Subjects Design

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

Factorial Designs

The Correlational Research Strategy

Descriptive Research Strategy

Single-Subject Research Designs

Statistical Evaluation of Data

Writing a Research Report

Filters