Exam 7: The Experimental Research Strategy.

Dr.Jones systematically varies the temperature in the laboratory (70,80,and 90 degrees Fahrenheit)while holding other variables constant,and observes that the participants' activity level decreases as the temperature increases.This illustrates ____.

(Multiple Choice)

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Question 41

In an experiment,any variable that varies systematically with the treatment conditions and might influence the participants' scores is called a(n)____ variable.

(Multiple Choice)

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Question 42

In an experiment comparing two treatments,the researcher assigns participants to treatment conditions so that each condition has 15 seven-year-old children and 10 eight-year-old children.For this study,what method is being used to control participant age?

(Multiple Choice)

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Question 43

Dr.Hines 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.Hones 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.Hines measures the level of depression for the people living in the houses.In this example,the level of depression is the ____ variable.

(Multiple Choice)

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Question 44

A researcher designs a study to determine whether female preschoolers prefer sweetened or unsweetened cereal.The researcher uses a box of sweetened colorful cereal and a box of unsweetened tan colored cereal.The research finds that the group of preschoolers ate more of the sweetened colorful cereal and therefore prefers the sweetened cereal.Which two variables are confounded in this experiment?

(Multiple Choice)

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Question 45

Dr.Nguyen is studying how the quality of breakfast influences academic performance for elementary school children.A sample of 100 children is selected.Fifty children are provided with a nutritious breakfast when they arrive at school each morning.The other 50 children are given a doughnut each morning.After three months,Dr.Nguyen records the academic achievement level for each child and compares the two groups of scores.In this example,how many levels are there for the independent variable?

(Multiple Choice)

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Question 46

Research indicates the people who suffer from depression also tend to experience insomnia.However,it is unclear whether the depression causes insomnia or the lack of sleep causes depression.This is an example of the ____.

(Multiple Choice)

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Question 47

A researcher reports that participants made fewer errors on a simulated air-traffic-control task when quiet background music was playing than when there was no music.For this study,the number of errors is the independent variable.

(True/False)

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Question 48

The specific treatment conditions that are used in an experiment are called the ____.

(Multiple Choice)

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Question 49

The measured variable in an experiment is the ____ variable.

(Multiple Choice)

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Question 50

In an experiment,the purpose for manipulating the independent variable is to help ____.

(Multiple Choice)

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Question 51

Simulation involves bringing aspects of the real world into the laboratory.

(True/False)

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Question 52

Preventing an extraneous variable from becoming a confounding variable by holding it constant can result in a threat to external validity.

(True/False)

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Question 53

In an experiment,manipulation of the independent variable requires ____.

(Multiple Choice)

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Question 54

Describe one situation where a manipulation check might be appropriate and explain what the manipulation check is intended to accomplish.

(Essay)

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Question 55

Explain the difference between a no-treatment control group and a placebo control group.

(Essay)

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Question 56

A researcher moves an experiment out of the laboratory and into the real world.This type of research is called a ____.

(Multiple Choice)

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Question 57

A researcher is performing an experiment to determine whether eating protein causes a sad mood.Measurements of mood in this experiment would be the ____ variable.

(Multiple Choice)

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Question 58

A researcher moves the real world into the laboratory.This type of research is called a ____.

(Multiple Choice)

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Question 59

What is the purpose for using a control group in an experiment?

(Multiple Choice)

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Question 60

Showing 41 - 60 of 67

Dr.Jones systematically varies the temperature in the laboratory (70,80,and 90 degrees Fahrenheit)while holding other variables constant,and observes that the participants' activity level decreases as the temperature increases.This illustrates ____.

In an experiment,any variable that varies systematically with the treatment conditions and might influence the participants' scores is called a(n)____ variable.

In an experiment comparing two treatments,the researcher assigns participants to treatment conditions so that each condition has 15 seven-year-old children and 10 eight-year-old children.For this study,what method is being used to control participant age?

Research indicates the people who suffer from depression also tend to experience insomnia.However,it is unclear whether the depression causes insomnia or the lack of sleep causes depression.This is an example of the ____.

A researcher reports that participants made fewer errors on a simulated air-traffic-control task when quiet background music was playing than when there was no music.For this study,the number of errors is the independent variable.

The specific treatment conditions that are used in an experiment are called the ____.

The measured variable in an experiment is the ____ variable.

In an experiment,the purpose for manipulating the independent variable is to help ____.

Simulation involves bringing aspects of the real world into the laboratory.

Preventing an extraneous variable from becoming a confounding variable by holding it constant can result in a threat to external validity.

In an experiment,manipulation of the independent variable requires ____.

Describe one situation where a manipulation check might be appropriate and explain what the manipulation check is intended to accomplish.

Explain the difference between a no-treatment control group and a placebo control group.

A researcher moves an experiment out of the laboratory and into the real world.This type of research is called a ____.

A researcher is performing an experiment to determine whether eating protein causes a sad mood.Measurements of mood in this experiment would be the ____ variable.

A researcher moves the real world into the laboratory.This type of research is called a ____.

What is the purpose for using a control group in an experiment?

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.

Dr.Jones systematically varies the temperature in the laboratory (70,80,and 90 degrees Fahrenheit)while holding other variables constant,and observes that the participants' activity level decreases as the temperature increases.This illustrates ____.​

In an experiment,any variable that varies systematically with the treatment conditions and might influence the participants' scores is called a(n)____ variable.

In an experiment comparing two treatments,the researcher assigns participants to treatment conditions so that each condition has 15 seven-year-old children and 10 eight-year-old children.For this study,what method is being used to control participant age?

Research indicates the people who suffer from depression also tend to experience insomnia.However,it is unclear whether the depression causes insomnia or the lack of sleep causes depression.This is an example of the ____.

A researcher reports that participants made fewer errors on a simulated air-traffic-control task when quiet background music was playing than when there was no music.For this study,the number of errors is the independent variable.

The specific treatment conditions that are used in an experiment are called the ____.

The measured variable in an experiment is the ____ variable.

In an experiment,the purpose for manipulating the independent variable is to help ____.

Simulation involves bringing aspects of the real world into the laboratory.

Preventing an extraneous variable from becoming a confounding variable by holding it constant can result in a threat to external validity.

In an experiment,manipulation of the independent variable requires ____.

Describe one situation where a manipulation check might be appropriate and explain what the manipulation check is intended to accomplish.

Explain the difference between a no-treatment control group and a placebo control group.

A researcher moves an experiment out of the laboratory and into the real world.This type of research is called a ____.

A researcher is performing an experiment to determine whether eating protein causes a sad mood.Measurements of mood in this experiment would be the ____ variable.

A researcher moves the real world into the laboratory.This type of research is called a ____.

What is the purpose for using a control group in an experiment?

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

Dr.Jones systematically varies the temperature in the laboratory (70,80,and 90 degrees Fahrenheit)while holding other variables constant,and observes that the participants' activity level decreases as the temperature increases.This illustrates ____.