PSY-3301 Chapter 6 MC Quiz (Set 9)
Question 1
0 out of 5 points
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In an imperfect relationship, _________.
Question 2
0 out of 5 points
If a relationship is linear, _________.
Question 3
0 out of 5 points
Which of the following statements concerning Pearson r is not true?
Question 4
0 out of 5 points
In order to properly use rho, the variables must be of at least _______ scaling.
Question 5
5 out of 5 points
If N is small, an extreme score _________.
Question 6
0 out of 5 points
For the following X and Y scores, how much of the variability of Y is accounted for by knowledge of X? Assume a linear relationship.
X
20
15
6
10
Y
6
5
4
0
Question 7
0 out of 5 points
In the equation Y = bX + a, X and Y are _________.
Question 8
5 out of 5 points
A relationship can be _________.
Question 9
0 out of 5 points
You have conducted a brilliant study which correlates IQ score with income and find a value of r = 0.75. At the end of the study you find out all the IQ scores were scored 10 points too high. What will the value of r be with the corrected data?
Question 10
5 out of 5 points
When deciding which measure of correlation to employ with a specific set of data, you should consider _________.
Question 11
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If one calculates r for raw scores, and then calculates r on the z scores of the same data, the value of r will _______.
Question 12
5 out of 5 points
Y can be most accurately predicted from X if the correlation between X and Y is _________.
Question 13
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When a correlation exists, lowering the range of either of the variables will _________.
Question 14
5 out of 5 points
You have noticed that as people eat more ice cream they also have darker suntans. From this observation, you conclude _______.
Question 15
5 out of 5 points
In a negative relationship, _________.
Question 16
0 out of 5 points
If the correlation between variables X and Y is 0.95, which of the following is true?
Question 17
0 out of 5 points
Which of the following statements is true?
Question 18
0 out of 5 points
Rho is used _________.
Question 19
0 out of 5 points
In a negative relationship, _________.
Question 20
5 out of 5 points
Pearson r can be properly used on which of the following type(s) of relationships?