Question 1

External validity means an experiment defines operational variables in a normal, typical, or realistic way.

Accepted Answer

A) True 
 B)False

Question 2

An operational definition is a description of a property in measurable terms.

Accepted Answer

A) True 
 B)False

Question 3

Identifying a group of children who watch violent television and a group of children who do not is an example of manipulating exposure to violent television.

Accepted Answer

A) True 
 B)False

Question 4

A community member without a college degree could serve on an Institutional Review Board at a college or university.

Accepted Answer

A) True 
 B)False

Question 5

An experimental group should be identical to a control group in every way except one: the manipulation of the independent variable.

Accepted Answer

A) True 
 B)False

Question 6

A correlation coefficient of 1 indicates that two variables co-vary perfectly.

Accepted Answer

A) True 
 B)False

Question 7

A measure is unreliable if it yields different results when it is used to measure different things.

Accepted Answer

A) True 
 B)False

Question 8

A correlation coefficient of 1 indicates that two variables are causally related.

Accepted Answer

A) True 
 B)False

Question 9

Defining and detecting are the two tasks that allow us to measure physical and psychological properties.

Accepted Answer

A) True 
 B)False

Question 10

When an independent variable is manipulated, at least two groups are created.

Accepted Answer

A) True 
 B)False

Question 11

Experimental psychologists seeking to determine cause and effect relations between variables tend to view external validity as more important than internal validity.

Accepted Answer

A) True 
 B)False

Question 12

Critical thinking involves the relentless search for evidence that confirms existing beliefs.

Accepted Answer

A) True 
 B)False

Question 13

Most participants in psychological research are volunteers not selected randomly.

Accepted Answer

A) True 
 B)False

Question 14

Institutional review boards help ensure data are analyzed and disseminated ethically.

Accepted Answer

A) True 
 B)False

Question 15

The variable that is manipulated in an experiment is the independent variable.

Accepted Answer

A) True 
 B)False

Question 16

Most psychological research does not utilize random sampling.

Accepted Answer

A) True 
 B)False

Question 17

Psychologists conducting experiments rarely use random assignment.

Accepted Answer

A) True 
 B)False

Question 18

One feature of a normal distribution is that it is usually positively skewed.

Accepted Answer

A) True 
 B)False

Question 19

Unobtrusive naturalistic observation helps minimize the problem of demand characteristics.

Accepted Answer

A) True 
 B)False

Question 20

Empiricists believe that accurate knowledge about the world requires observation of it.

Accepted Answer

A) True 
 B)False

Exam 2: Section 4: Methods in Psychology

External validity means an experiment defines operational variables in a normal, typical, or realistic way.

An operational definition is a description of a property in measurable terms.

Identifying a group of children who watch violent television and a group of children who do not is an example of manipulating exposure to violent television.

A community member without a college degree could serve on an Institutional Review Board at a college or university.

An experimental group should be identical to a control group in every way except one: the manipulation of the independent variable.

A correlation coefficient of 1 indicates that two variables co-vary perfectly.

A measure is unreliable if it yields different results when it is used to measure different things.

A correlation coefficient of 1 indicates that two variables are causally related.

Defining and detecting are the two tasks that allow us to measure physical and psychological properties.

When an independent variable is manipulated, at least two groups are created.

Experimental psychologists seeking to determine cause and effect relations between variables tend to view external validity as more important than internal validity.

Critical thinking involves the relentless search for evidence that confirms existing beliefs.

Most participants in psychological research are volunteers not selected randomly.

Institutional review boards help ensure data are analyzed and disseminated ethically.

The variable that is manipulated in an experiment is the independent variable.

Most psychological research does not utilize random sampling.

Psychologists conducting experiments rarely use random assignment.

One feature of a normal distribution is that it is usually positively skewed.

Unobtrusive naturalistic observation helps minimize the problem of demand characteristics.

Empiricists believe that accurate knowledge about the world requires observation of it.