Question 1

Find the median for the following observations 6,4,8,1,2.

Accepted Answer

A)  3 
B)  4 
C)  5 
D)  8 
A)  3 
B)  4 
C)  5 
D)  8 B

Question 2

Content analyzed archival data, relative to archival data coded by others, should be less vulnerable to

Accepted Answer

A)  reactivity 
B)  instrumentation bias 
C)  poor match between the measure and the construct 
D)  both b and c 
A)  reactivity 
B)  instrumentation bias 
C)  poor match between the measure and the construct 
D)  both b and c D

Question 3

Objectivity is most likely to be a problem in _____ research.

Accepted Answer

A)  ex post facto 
B)  archival 
C)  observational 
D)  testing 
A)  ex post facto 
B)  archival 
C)  observational 
D)  testing C

Question 4

A correlation of -0.6 indicates that _______ of the variation in Y is explained by X.

Accepted Answer

A)  6% 
B)  12% 
C)  36% 
D)  60% 
A)  6% 
B)  12% 
C)  36% 
D)  60%

Question 5

A positive correlation of .57 is stronger than a negative correlation of -.63.

Accepted Answer

A) True 
 B)False

Question 6

Correlation does not imply

Accepted Answer

A)  description 
B)  causation 
C)  prediction 
D)  relationship 
A)  description 
B)  causation 
C)  prediction 
D)  relationship

Question 7

In order to accurately describe behavior, you must use a representative sample of the population you are studying.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following are difficult to do without using scientific methods?

Accepted Answer

A)  accurately measuring psychological variables 
B)  determining the extent to which variables are related 
C)  accurately generalizing from a sample to a population 
D)  all of the above 
A)  accurately measuring psychological variables 
B)  determining the extent to which variables are related 
C)  accurately generalizing from a sample to a population 
D)  all of the above

Question 9

Ex post facto research is weakest in terms of:

Accepted Answer

A)  internal validity 
B)  external validity 
C)  construct validity 
D)  b and c 
A)  internal validity 
B)  external validity 
C)  construct validity 
D)  b and c

Question 10

Null results may be due to all of the following EXCEPT:

Accepted Answer

A)  conducting too many statistical tests 
B)  restriction of range 
C)  too few observations 
D)  a nonlinear relationship among the variables 
A)  conducting too many statistical tests 
B)  restriction of range 
C)  too few observations 
D)  a nonlinear relationship among the variables

Question 11

In generalizing from their experience to the world as a whole,

Accepted Answer

A)  people have trouble because their experience is only a small sample of experience 
B)  people have trouble because their experience is not a random sample of experience 
C)  people have trouble because they can't discount the role of coincidence 
D)  all of the above 
A)  people have trouble because their experience is only a small sample of experience 
B)  people have trouble because their experience is not a random sample of experience 
C)  people have trouble because they can't discount the role of coincidence 
D)  all of the above

Question 12

Which of the following goals of science is the first step to all of the remaining goals?

Accepted Answer

A)  understanding 
B)  explanation 
C)  prediction 
D)  description 
A)  understanding 
B)  explanation 
C)  prediction 
D)  description

Question 13

If two variables are perfectly correlated, the correlation coefficient will have a value of

Accepted Answer

A)  +1.00 
B)  -1.00 
C)  0.00 
D)  +1.00 or -1.00 
A)  +1.00 
B)  -1.00 
C)  0.00 
D)  +1.00 or -1.00

Question 14

Which scatterplot suggests that there is no relationship between variables X and Y?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 15

If you want to increase the construct validity of your correlational research, it is often best to use validated tests.

Accepted Answer

A) True 
 B)False

Question 16

Which scatterplot demonstrates the strongest relationship between variables X and Y?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 17

Strictly speaking, you should use inferential statistics on correlational data

Accepted Answer

A)  never 
B)  only when you are interested in inferring causality 
C)  only when you have a random sample of a population 
D)  always, as long as your data is valid 
A)  never 
B)  only when you are interested in inferring causality 
C)  only when you have a random sample of a population 
D)  always, as long as your data is valid

Question 18

With observation, you run into the problem of

Accepted Answer

A)  the observer having an effect on the observed 
B)  objectively coding your data 
C)  both a and b 
D)  neither a nor b; these are not problems in observational research 
A)  the observer having an effect on the observed 
B)  objectively coding your data 
C)  both a and b 
D)  neither a nor b; these are not problems in observational research

Question 19

Before you can predict behavior accurately, you need to be able to describe it.

Accepted Answer

A) True 
 B)False

Question 20

Which of the following correlations represents the strongest relationship?

Accepted Answer

A)  +0.90 
B)  +0.45 
C)  -0.37 
D)  -0.93 
A)  +0.90 
B)  +0.45 
C)  -0.37 
D)  -0.93

Find the median for the following observations 6,4,8,1,2.

Content analyzed archival data, relative to archival data coded by others, should be less vulnerable to

Objectivity is most likely to be a problem in _____ research.

A correlation of -0.6 indicates that _______ of the variation in Y is explained by X.

A positive correlation of .57 is stronger than a negative correlation of -.63.

Correlation does not imply

In order to accurately describe behavior, you must use a representative sample of the population you are studying.

Which of the following are difficult to do without using scientific methods?

Ex post facto research is weakest in terms of:

Null results may be due to all of the following EXCEPT:

In generalizing from their experience to the world as a whole,

Which of the following goals of science is the first step to all of the remaining goals?

If two variables are perfectly correlated, the correlation coefficient will have a value of

Which scatterplot suggests that there is no relationship between variables X and Y?

If you want to increase the construct validity of your correlational research, it is often best to use validated tests.

Which scatterplot demonstrates the strongest relationship between variables X and Y?

Strictly speaking, you should use inferential statistics on correlational data

With observation, you run into the problem of

Before you can predict behavior accurately, you need to be able to describe it.

Which of the following correlations represents the strongest relationship?

Psychology, Science, and You

Ethics and Validity

Generating Research Hypotheses

Reading and Evaluating Research

Measuring and Manipulating Variables: Reliability and Validity

Choosing the Best Measure for Your Study

Survey Research

Internal Validity

The Simple Experiment

Expanding the Simple Experiment: The Multiple Group Experiment

Expanding the Simple Experiment: Factorial Designs

Within-Subjects Designs

Single-N Experiments and Quasi-Experiments

Writing Research Proposals and Reports

Appendix E: Using Theory to Generate Research Hypotheses

Filters

Exam 7: Introduction to Descriptive Methods

Find the median for the following observations 6,4,8,1,2.

Content analyzed archival data, relative to archival data coded by others, should be less vulnerable to

Objectivity is most likely to be a problem in _____ research.

A correlation of -0.6 indicates that _______ of the variation in Y is explained by X.

A positive correlation of .57 is stronger than a negative correlation of -.63.

Correlation does not imply

In order to accurately describe behavior, you must use a representative sample of the population you are studying.

Which of the following are difficult to do without using scientific methods?

Ex post facto research is weakest in terms of:

Null results may be due to all of the following EXCEPT:

In generalizing from their experience to the world as a whole,

Which of the following goals of science is the first step to all of the remaining goals?

If two variables are perfectly correlated, the correlation coefficient will have a value of

Which scatterplot suggests that there is no relationship between variables X and Y?

If you want to increase the construct validity of your correlational research, it is often best to use validated tests.

Which scatterplot demonstrates the strongest relationship between variables X and Y?

Strictly speaking, you should use inferential statistics on correlational data

With observation, you run into the problem of

Before you can predict behavior accurately, you need to be able to describe it.

Which of the following correlations represents the strongest relationship?

Psychology, Science, and You

Ethics and Validity

Generating Research Hypotheses

Reading and Evaluating Research

Measuring and Manipulating Variables: Reliability and Validity

Choosing the Best Measure for Your Study

Survey Research

Internal Validity

The Simple Experiment

Expanding the Simple Experiment: The Multiple Group Experiment

Expanding the Simple Experiment: Factorial Designs

Within-Subjects Designs

Single-N Experiments and Quasi-Experiments

Writing Research Proposals and Reports

Appendix E: Using Theory to Generate Research Hypotheses

Filters