QUANTITATIVE REASONING
FINAL EXAM
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This Exam contains: Quantitative Reasoning Final
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,Question 1
One reason to use a correlational design is ______.
A) when an experimental study would be unethical
B) when it is possible to manipulate the variable(s) of interest
C) to examine causality
D) to increase internal validity
Correct Answer
A) when an experimental study would be unethical
Question 2
The value of Pearson's r ranges between ______.
A) 0.0 and +1.0
B) -1.0 and 0.0
C) -1.0 and +1.0
D) 0.0 and 10.0
Correct Answer
C) -1.0 and +1.0
Question 3
The scatterplot below shows a ______.
/ / //
// /
//
///
A) weak positive relationship
B) strong positive relationship
C) weak negative relationship
D) strong negative relationship
Correct Answer
B) strong positive relationship
Question 4
The strength of the relationship is evident from ______ and the direction of the relationship is evident from ______ in a
correlation coefficient.
A) how close the correlation coefficient is to +1.0; the sign of the coefficient
B) how close the correlation coefficient is to the absolute value of 1.0; the sign of the coefficient
C) whether the correlation coefficient is positive or negative; the scatterplot
D) the scatterplot; the combination of the variables' predicted values
Correct Answer
B) how close the correlation coefficient is to the absolute value of 1.0; the sign of the coefficient
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, Question 5
When two variables move in opposite directions (one increases while the other decreases), they are ______.
A) positively correlated
B) negatively correlated
C) not correlated
D) perfectly correlated
Correct Answer
B) negatively correlated
Question 6
Anne and Jack are examining variables related to self-control. Anne finds r = +.40 between percentage of salary saved
and self-control while Jack finds r = -.60 between impulsivity and self-control. Which variable is more strongly related
to self-control?
A) percentage of salary saved
B) impulsivity
C) neither variable is significantly related to self-control
D) you cannot tell from the information provided
Correct Answer
B) impulsivity
Question 7
Correlation is the statistic used to assess ______.
A) causation between two interval/ratio variables
B) relationships between two ordinal/ratio variables
C) the validity and reliability of measures
D) the lack of significant results
Correct Answer
C) the validity and reliability of measures
Question 8
Correlational designs can have greater external validity than experiments because correlational designs ______.
A) better represent the everyday world where we do not manipulate or control events
B) study true relationships while experiments only manipulate relationships
C) are more attractive to participants
D) easier to conduct
Correct Answer
A) better represent the everyday world where we do not manipulate or control events
Trusted by thousands of students and professionals worldwide Page 3 of 24
FINAL EXAM
80+ (Latest 2025-2026 Edition) 100%
Verified Q&A + Answer Key Solutions
100% Guarantee Pass
This Exam contains: Quantitative Reasoning Final
✓ Exam
✓ 100% Accurate Questions and Answers
✓ 100% Guarantee Pass - Verified by Experts
✓ Each Question Includes The Correct Answer
✓ Expert-Verified
Trusted by thousands of students and professionals worldwide Page 1 of 24
,Question 1
One reason to use a correlational design is ______.
A) when an experimental study would be unethical
B) when it is possible to manipulate the variable(s) of interest
C) to examine causality
D) to increase internal validity
Correct Answer
A) when an experimental study would be unethical
Question 2
The value of Pearson's r ranges between ______.
A) 0.0 and +1.0
B) -1.0 and 0.0
C) -1.0 and +1.0
D) 0.0 and 10.0
Correct Answer
C) -1.0 and +1.0
Question 3
The scatterplot below shows a ______.
/ / //
// /
//
///
A) weak positive relationship
B) strong positive relationship
C) weak negative relationship
D) strong negative relationship
Correct Answer
B) strong positive relationship
Question 4
The strength of the relationship is evident from ______ and the direction of the relationship is evident from ______ in a
correlation coefficient.
A) how close the correlation coefficient is to +1.0; the sign of the coefficient
B) how close the correlation coefficient is to the absolute value of 1.0; the sign of the coefficient
C) whether the correlation coefficient is positive or negative; the scatterplot
D) the scatterplot; the combination of the variables' predicted values
Correct Answer
B) how close the correlation coefficient is to the absolute value of 1.0; the sign of the coefficient
Trusted by thousands of students and professionals worldwide Page 2 of 24
, Question 5
When two variables move in opposite directions (one increases while the other decreases), they are ______.
A) positively correlated
B) negatively correlated
C) not correlated
D) perfectly correlated
Correct Answer
B) negatively correlated
Question 6
Anne and Jack are examining variables related to self-control. Anne finds r = +.40 between percentage of salary saved
and self-control while Jack finds r = -.60 between impulsivity and self-control. Which variable is more strongly related
to self-control?
A) percentage of salary saved
B) impulsivity
C) neither variable is significantly related to self-control
D) you cannot tell from the information provided
Correct Answer
B) impulsivity
Question 7
Correlation is the statistic used to assess ______.
A) causation between two interval/ratio variables
B) relationships between two ordinal/ratio variables
C) the validity and reliability of measures
D) the lack of significant results
Correct Answer
C) the validity and reliability of measures
Question 8
Correlational designs can have greater external validity than experiments because correlational designs ______.
A) better represent the everyday world where we do not manipulate or control events
B) study true relationships while experiments only manipulate relationships
C) are more attractive to participants
D) easier to conduct
Correct Answer
A) better represent the everyday world where we do not manipulate or control events
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