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Multiple Choice Quiz
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1
If the variable "hours spent in study" is positively correlated with the variable "score on the test," we can be certain that
A)spending more time studying will result in a higher test score.
B)the score on the test can be perfectly predicted from the hours spent in study.
C)the students that study the most typically get the highest test scores.
D)the points on a graph of these variables will be on a straight line.
2
The variable that is predicted in a prediction study is the
A)criterion variable.
B)predictor variable.
C)effect variable.
D)regression variable.
3
For which of the following correlations is the standard error of estimate the largest?
A).20
B).40
C).60
D).80
4
The method of analysis that uses several variables to predict the category a participant belongs in is called
A)prediction analysis.
B)multiple regression.
C)discriminant function analysis.
D)factor analysis.
5
Which of the following conditions would most likely lead the researcher to calculate a partial correlation?
A)One variable is weakly correlated with another variable.
B)Two variables are correlated with each other and with a third variable.
C)Several participants leave the study before the correlation is calculated.
D)The sample in a correlational study does not represent the population.
6
Which of the following statements about structural modeling with correlational research is correct?
A)Correlational research should not be used for structural modeling.
B)Structural modeling is appropriate only when correlational research is combined with an experiment.
C)Partial correlation is used to generate structural models.
D)Structural modeling uses the correlation technique known as path analysis.
7
When mortality is a threat to correlational research it threatens
A)internal validity because the estimate of the correlation is inaccurate.
B)external validity because the estimate of the correlation is inaccurate.
C)internal validity because one variable is measured more precisely than the other.
D)external validity because one variable is measured more precisely than the other.
8
One major purpose of correlational research is
A)to study the changes in behavior an individual exhibits after exposure to an intervention or treatment of some sort.
B)to clarify our understanding of important phenomena through the identification of relationships.
C)to make people aware of what has happened from past failures or accomplishments.
D)to assess attitudes and opinions.
9
Which of the following is not a purpose of correlational research?
A)to explore causation
B)to predict likely outcomes
C)to clarify our understanding of important phenomena through the identification of relationships
D)to identify cultural values
10
The variable that is used to make the prediction is called
A)correlational variable
B)criterion variable
C)predictior variable
11
The variable about which the prediction is made is called a
A)criterion variable
B)predictior variable
C)correlational variable
12
Multiple regression is a technique that
A)indicates the strength of the correlation between the combination of the predictor variables and the criterion variable.
B)enables researchers to predict a criterion variable by using the best combination of two or more predictor variables.
C)indicates the percentage of the variability among the criterion scores that can be attributed to differences in the scores on the predictor variables.
D)is a technique used to test the causal connection among three or more variables.
13
The coefficient of determination
A)enables researchers to determine a correlation between a criterion variable and the best combination of two or more predictor variables.
B)is a technique used to test the causal connection among three or more variables.
C)describes the strength of the correlation between the combination of the predictor variables and the criterion variable.
D)indicates the percentage of the variability among the criterion scores that can be attributed to differences in the scores on the predictor variables.
14
Almost all correlational studies revolve around three types of questions. Which of the following is not one of these types of questions?
A)How were things done in the past, and how might they be applicable to present-day problems or concerns?
B)Is variable X related to variable Y?
C)What is the relationship among a large number of variables and what predictions can be made on them?
D)How well does variable P predict variable C?
15
Which of the following threats applies to internal validity in correlational research?
A)history
B)location threat
C)maturation
D)regression





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