Question 1

Random selection and random assignment are the same thing.

Accepted Answer

A) True 
 B)False

Question 2

Imagine a between-subjects experiment on the effect of a defendant's attractiveness on judgments of his or her guilt. Give an example of an extraneous variable in this study, explain what it would mean for that extraneous variable to become a confounding variable, and explain why that would be a bad thing.

Accepted Answer

An example of an extraneous variable in

Question 3

Research on placebos has shown which of the following?

Accepted Answer

A)  They do not work. 
B)  They only work for psychological problems like anxiety and depression. 
C)  Even fake surgery can have positive effects. 
D)  They have only trivial effects. 
A)  They do not work. 
B)  They only work for psychological problems like anxiety and depression. 
C)  Even fake surgery can have positive effects. 
D)  They have only trivial effects.

Question 4

A double-blind study is one in which neither the participant nor the experimenter knows what condition the participant is in.

Accepted Answer

A) True 
 B)False

Question 5

In an experiment, the different levels of the independent variable are referred to as which of the following?

Accepted Answer

A)  conditions 
B)  factors 
C)  means 
D)  variables 
A)  conditions 
B)  factors 
C)  means 
D)  variables

Question 6

Why are confounding variables bad?

Accepted Answer

A)  They provide an alternative explanation for any observed difference between conditions. 
B)  They reduce internal validity. 
C)  They make it difficult to tell if the independent variable was responsible for the effect on the dependent variable. 
D)  all of the above 
A)  They provide an alternative explanation for any observed difference between conditions. 
B)  They reduce internal validity. 
C)  They make it difficult to tell if the independent variable was responsible for the effect on the dependent variable. 
D)  all of the above

Question 7

Between-subjects experiments do not control extraneous variables.

Accepted Answer

A) True 
 B)False

Question 8

Experiments must be done in a laboratory.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following nonintuitive results has been obtained using a between-subjects design?

Accepted Answer

A)  Extroverts report having fewer friends than introverts do. 
B)  Introverts report greater risk-seeking tendencies than extroverts do. 
C)  People rate their enemies as more "likeable" than their friends. 
D)  People rate the number 9 as "larger" than the number 221. 
A)  Extroverts report having fewer friends than introverts do. 
B)  Introverts report greater risk-seeking tendencies than extroverts do. 
C)  People rate their enemies as more "likeable" than their friends. 
D)  People rate the number 9 as "larger" than the number 221.

Question 10

What is the standard term for a small-scale study conducted to make sure that a procedure works as planned?

Accepted Answer

A)  pilot test 
B)  test run 
C)  verification test 
D)  test condition 
A)  pilot test 
B)  test run 
C)  verification test 
D)  test condition

Question 11

A researcher is conducting a study in which the dependent variable is mental concentration. If it is a within-subjects design with lots of different conditions, then which of the following is most likely to be a problem for the researcher?

Accepted Answer

A)  practice effect 
B)  fatigue effect 
C)  context effect 
D)  floor effect 
A)  practice effect 
B)  fatigue effect 
C)  context effect 
D)  floor effect

Question 12

What term is used to describe a study in which neither the participant nor the experimenter knows which condition the participant is being tested in?

Accepted Answer

A)  sloppy 
B)  double blind 
C)  expectancy free 
D)  controlled 
A)  sloppy 
B)  double blind 
C)  expectancy free 
D)  controlled

Question 13

In a within-subjects experiment, each participant is tested in more than one condition.

Accepted Answer

A) True 
 B)False

Question 14

Experimenters manipulate independent variables and control extraneous variables.

Accepted Answer

A) True 
 B)False

Question 15

In a between-subjects experiment, each participant is tested in only one condition.

Accepted Answer

A) True 
 B)False

Question 16

Why do researchers randomly assign participants to conditions?

Accepted Answer

A)  to control extraneous variables 
B)  to ensure that they find a strong statistical relationship between the independent variable and the dependent variable 
C)  to discover whether there is a placebo effect 
D)  to avoid fatigue effects 
A)  to control extraneous variables 
B)  to ensure that they find a strong statistical relationship between the independent variable and the dependent variable 
C)  to discover whether there is a placebo effect 
D)  to avoid fatigue effects

Question 17

All extraneous variables are confounding variables.

Accepted Answer

A) True 
 B)False

Question 18

Experiments involve the random selection of participants.

Accepted Answer

A) True 
 B)False

Question 19

Researcher Robert Rosenthal is known for his work on which of the following?

Accepted Answer

A)  the effect of smiling on helping 
B)  cultural differences in time perception 
C)  social anxiety 
D)  experimenter expectancy effects 
A)  the effect of smiling on helping 
B)  cultural differences in time perception 
C)  social anxiety 
D)  experimenter expectancy effects

Question 20

Briefly describe an experiment on the effect of meditation on worker productivity. Be sure to emphasize the things that make the study an experiment.

Accepted Answer

To conduct an experiment on the effect o

Random selection and random assignment are the same thing.

Research on placebos has shown which of the following?

A double-blind study is one in which neither the participant nor the experimenter knows what condition the participant is in.

In an experiment, the different levels of the independent variable are referred to as which of the following?

Why are confounding variables bad?

Between-subjects experiments do not control extraneous variables.

Experiments must be done in a laboratory.

Which of the following nonintuitive results has been obtained using a between-subjects design?

What is the standard term for a small-scale study conducted to make sure that a procedure works as planned?

A researcher is conducting a study in which the dependent variable is mental concentration. If it is a within-subjects design with lots of different conditions, then which of the following is most likely to be a problem for the researcher?

What term is used to describe a study in which neither the participant nor the experimenter knows which condition the participant is being tested in?

In a within-subjects experiment, each participant is tested in more than one condition.

Experimenters manipulate independent variables and control extraneous variables.

In a between-subjects experiment, each participant is tested in only one condition.

Why do researchers randomly assign participants to conditions?

All extraneous variables are confounding variables.

Experiments involve the random selection of participants.

Researcher Robert Rosenthal is known for his work on which of the following?

Briefly describe an experiment on the effect of meditation on worker productivity. Be sure to emphasize the things that make the study an experiment.

The Science of Psychology

Getting Started in Research

Research Ethics

Theory in Psychology

Psychological Measurement

Nonexperimental Research

Complex Research Designs

Survey Research

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Exam 6: Experimental Research

Random selection and random assignment are the same thing.

Research on placebos has shown which of the following?

A double-blind study is one in which neither the participant nor the experimenter knows what condition the participant is in.

In an experiment, the different levels of the independent variable are referred to as which of the following?

Why are confounding variables bad?

Between-subjects experiments do not control extraneous variables.

Experiments must be done in a laboratory.

Which of the following nonintuitive results has been obtained using a between-subjects design?

What is the standard term for a small-scale study conducted to make sure that a procedure works as planned?

A researcher is conducting a study in which the dependent variable is mental concentration. If it is a within-subjects design with lots of different conditions, then which of the following is most likely to be a problem for the researcher?

What term is used to describe a study in which neither the participant nor the experimenter knows which condition the participant is being tested in?

In a within-subjects experiment, each participant is tested in more than one condition.

Experimenters manipulate independent variables and control extraneous variables.

In a between-subjects experiment, each participant is tested in only one condition.

Why do researchers randomly assign participants to conditions?

All extraneous variables are confounding variables.

Experiments involve the random selection of participants.

Researcher Robert Rosenthal is known for his work on which of the following?

Briefly describe an experiment on the effect of meditation on worker productivity. Be sure to emphasize the things that make the study an experiment.

The Science of Psychology

Getting Started in Research

Research Ethics

Theory in Psychology

Psychological Measurement

Nonexperimental Research

Complex Research Designs

Survey Research

Single-Subject Research

Presenting Your Research

Descriptive Statistics

Inferential Statistics

Filters