Question 1

A confounding variable is a variable that influences the ____.

Accepted Answer

A) ​dependent variable and varies systematically with the independent variable. 
B) ​independent variable and varies systematically with the dependent variable. 
C) dependent variable and varies randomly with the independent variable. 
D) ​independent variable and varies randomly with the dependent variable. 
A) ​dependent variable and varies systematically with the independent variable. 
B) ​independent variable and varies systematically with the dependent variable. 
C) dependent variable and varies randomly with the independent variable. 
D) ​independent variable and varies randomly with the dependent variable.

Question 2

Dr.Ramos is interested in studying how indoor lighting can influence people's moods during the winter.A sample of 100 households is selected.Fifty of the homes are randomly assigned to the bright-light condition where Dr.Ramos replaces all the lights with 100-watt bulbs.In the other 50 houses,all the lights are changed to 60-watt bulbs.After two months,Dr.Ramos measures the level of depression for the people living in the houses.Assuming that the study uses people from different age groups,participant age would be a(n)____ variable in the experiment.

Accepted Answer

A) ​dependent 
B) ​independent 
C) extraneous 
D) ​confounding 
A) ​dependent 
B) ​independent 
C) extraneous 
D) ​confounding

Question 3

Explain how simulation and field studies increase external validity.

Accepted Answer

Research results obtained in an artifici

Question 4

Dr.Fowler is interested in studying how indoor lighting can influence people's moods during the winter.A sample of 100 households is selected.Fifty of the homes are randomly assigned to the bright-light condition where Dr.Fowler replaces all the lights with 100-watt bulbs.In the other 50 houses,all the lights are changed to 60-watt bulbs.After two months,Dr.Fowler measures the level of depression for the people living in the houses.In this study,the independent variable is the ____.

Accepted Answer

A) ​brightness of the lights 
B) ​level of depression 
C) houses with 100-watt bulbs 
D) ​houses with 60-watt bulbs 
A) ​brightness of the lights 
B) ​level of depression 
C) houses with 100-watt bulbs 
D) ​houses with 60-watt bulbs

Question 5

An experiment comparing a treatment group with a no-treatment control group has no independent variable.

Accepted Answer

A) True 
 B)False

Question 6

If two variables are consistently related to one another,you can conclude that changes in one variable are causing changes to occur in the other.

Accepted Answer

A) True 
 B)False

Question 7

In an experiment,participants are randomly assigned to treatment conditions ____.

Accepted Answer

A) ​to help protect the internal validity of the study 
B) ​to help protect the external validity of the study 
C) to help protect both the internal and external validity 
D) ​as an alternative to manipulation of variables 
A) ​to help protect the internal validity of the study 
B) ​to help protect the external validity of the study 
C) to help protect both the internal and external validity 
D) ​as an alternative to manipulation of variables

A confounding variable is a variable that influences the ____.

Explain how simulation and field studies increase external validity.

An experiment comparing a treatment group with a no-treatment control group has no independent variable.

If two variables are consistently related to one another,you can conclude that changes in one variable are causing changes to occur in the other.

In an experiment,participants are randomly assigned to treatment conditions ____.

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.

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 7: The Experimental Research Strategy.

A confounding variable is a variable that influences the ____.

Explain how simulation and field studies increase external validity.

An experiment comparing a treatment group with a no-treatment control group has no independent variable.

If two variables are consistently related to one another,you can conclude that changes in one variable are causing changes to occur in the other.

In an experiment,participants are randomly assigned to treatment conditions ____.

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.

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