Question 1

Define a construct and explain why psychologists often need to use an operational definition to measure constructs.

Accepted Answer

​A construct is a hypothetical character

Question 2

Using the amount of class participation as a definition of self-confidence is an example of an operational definition.

Accepted Answer

A) True 
 B)False

Question 3

An artifact such as demand characteristics can threaten both the internal and the external validity of a research study.

Accepted Answer

A) True 
 B)False

Question 4

Whenever an operational definition is used for a hypothetical construct,the question of reliability is important to consider.

Accepted Answer

A) True 
 B)False

Question 5

What is meant by the reliability of measurement and describe three methods for measuring reliability.

Accepted Answer

​Reliability refers to the consistency o

Question 6

Which method is least likely to be used to assess the validity of a measurement?

Accepted Answer

A) ​split-half 
B) ​concurrent 
C) predictive 
D) ​convergent 
A) ​split-half 
B) ​concurrent 
C) predictive 
D) ​convergent

Question 7

If people score high on one measure and score low on another measure,there is ____

Accepted Answer

A) ​a positive relationship between the two measures 
B) ​a negative relationship between the two measures 
C) no relationship between the two measures 
D) ​a cause-and-effect relationship between the two measures 
A) ​a positive relationship between the two measures 
B) ​a negative relationship between the two measures 
C) no relationship between the two measures 
D) ​a cause-and-effect relationship between the two measures

Question 8

Determining a person's reaction time (in milliseconds)would involve measurement on a(n)____ scale of measurement.

Accepted Answer

A) ​nominal 
B) ​ordinal 
C) interval 
D) ​ratio 
A) ​nominal 
B) ​ordinal 
C) interval 
D) ​ratio

Define a construct and explain why psychologists often need to use an operational definition to measure constructs.

Using the amount of class participation as a definition of self-confidence is an example of an operational definition.

An artifact such as demand characteristics can threaten both the internal and the external validity of a research study.

Whenever an operational definition is used for a hypothetical construct,the question of reliability is important to consider.

What is meant by the reliability of measurement and describe three methods for measuring reliability.

Which method is least likely to be used to assess the validity of a measurement?

If people score high on one measure and score low on another measure,there is ____

Determining a person's reaction time (in milliseconds)would involve measurement on a(n)____ scale of measurement.

Introduction, Acquiring Knowledge, and the Scientific Method.

Research Ideas and Hypotheses.

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.

Factorial 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 3: Defining and Measuring Variables.

Define a construct and explain why psychologists often need to use an operational definition to measure constructs.

Using the amount of class participation as a definition of self-confidence is an example of an operational definition.

An artifact such as demand characteristics can threaten both the internal and the external validity of a research study.

Whenever an operational definition is used for a hypothetical construct,the question of reliability is important to consider.

What is meant by the reliability of measurement and describe three methods for measuring reliability.

Which method is least likely to be used to assess the validity of a measurement?

If people score high on one measure and score low on another measure,there is ____

Determining a person's reaction time (in milliseconds)would involve measurement on a(n)____ scale of measurement.

Introduction, Acquiring Knowledge, and the Scientific Method.

Research Ideas and Hypotheses.

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.

Factorial Designs.

The Correlational Research Strategy.

The Descriptive Research Strategy.

Single-Subject Research Designs.

Statistical Evaluation of Data.

Writing an APA-Style Research Report.

Filters