Question 1

Threats related to participant characteristics include:

Accepted Answer

A)  Regression to the mean of extreme groups 
B)  Attrition or experimental mortality 
C)  Differences between groups in maturation rates 
D)  All of the above 
A)  Regression to the mean of extreme groups 
B)  Attrition or experimental mortality 
C)  Differences between groups in maturation rates 
D)  All of the above

Question 2

With the associational approach, it is difficult to have a high rating on either one of the measures of internal validity?

Accepted Answer

A) True 
 B)False

Question 3

Match the research examples in 1-7 with the main threat to internal validity that it contains (a-g).
-A researcher gives students a pretest on attitudes toward diversity and then implements his "teaching tolerance" curriculum to half of the classes. A month before the posttest, voters in the state pass a divisive anti-homosexual law.

Accepted Answer

A)  Maturation 
B)  History or environmental events 
C)  Repeated testing 
D)  Instrumentation 
E)  Selection or assignment
F) Mortality or attrition
G) Statistical regression 
A)  Maturation 
B)  History or environmental events 
C)  Repeated testing 
D)  Instrumentation 
E)  Selection or assignment
F) Mortality or attrition
G) Statistical regression

Question 4

Match the research examples in 1-7 with the main threat to internal validity that it contains (a-g).
-A researcher is interested in the long-term effects of an election on the political attitudes of voters. Prior to the election, the views of 100 voters are assessed. Afterward, the researcher is able to reassess the attitudes of 74 voters.

Accepted Answer

A)  Maturation 
B)  History or environmental events 
C)  Repeated testing 
D)  Instrumentation 
E)  Selection or assignment
F) Mortality or attrition
G) Statistical regression 
A)  Maturation 
B)  History or environmental events 
C)  Repeated testing 
D)  Instrumentation 
E)  Selection or assignment
F) Mortality or attrition
G) Statistical regression

Question 5

What threats are not eliminated by using random assignment?

Accepted Answer

The threats that are not eliminated by u

Threats related to participant characteristics include:

With the associational approach, it is difficult to have a high rating on either one of the measures of internal validity?

What threats are not eliminated by using random assignment?

Definitions, Purposes, and Dimensions of Research

Planning a Quantitative Research Project

Variables, Research Questions, and Hypotheses

Research Approaches

Randomized Experimental and Quasi-Experimental Designs

Single-Subject Designs

Nonexperimental Approachesdesigns

Sampling and Introduction to External Validity

Measurement and Descriptive Statistics

Measurement Reliability

Measurement Validity

Types of Data Collection Techniques

Ethical Issues in Conducting the Study

Practical Issues in Data Collection and Coding

Making Inferences From Sample Data I: The Null Hypothesis Significance Testing Approach

Making Inferences From Sample Data II: the Evidence-Based Approach

General Design Classifications for Selection of Difference Statistical Methods

Selection of Appropriate Statistical Methods: Integration of Design and Analysis

Data Analysis and Interpretation: Basic Difference Questions

Analysis and Interpretation of Basic Associational Research Questions

Analysis and Interpretation of Complex Research Questions

Evaluating Research Validity: Part I

Evaluating Research Validity: Part II

Evaluating Research for Evidence-Based Practice

Writing the Research Report

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Exam 8: Internal Validity

Threats related to participant characteristics include:

With the associational approach, it is difficult to have a high rating on either one of the measures of internal validity?

What threats are not eliminated by using random assignment?

Definitions, Purposes, and Dimensions of Research

Planning a Quantitative Research Project

Variables, Research Questions, and Hypotheses

Research Approaches

Randomized Experimental and Quasi-Experimental Designs

Single-Subject Designs

Nonexperimental Approachesdesigns

Sampling and Introduction to External Validity

Measurement and Descriptive Statistics

Measurement Reliability

Measurement Validity

Types of Data Collection Techniques

Ethical Issues in Conducting the Study

Practical Issues in Data Collection and Coding

Making Inferences From Sample Data I: The Null Hypothesis Significance Testing Approach

Making Inferences From Sample Data II: the Evidence-Based Approach

General Design Classifications for Selection of Difference Statistical Methods

Selection of Appropriate Statistical Methods: Integration of Design and Analysis

Data Analysis and Interpretation: Basic Difference Questions

Analysis and Interpretation of Basic Associational Research Questions

Analysis and Interpretation of Complex Research Questions

Evaluating Research Validity: Part I

Evaluating Research Validity: Part II

Evaluating Research for Evidence-Based Practice

Writing the Research Report

Filters