Question 1
5 out of 5 points
In a positive relationship, _________.
Question 2
0 out of 5 points
In an imperfect relationship, _________.
Question 3
0 out of 5 points
If a correlation is perfect,
Question 4
0 out of 5 points
When deciding which measure of correlation to employ with a specific set of data, you should consider _________.
Question 5
5 out of 5 points
The proportion of variance accounted for by a correlation between two variables is determined by _________.
Question 6
0 out of 5 points
Pearson r can be properly used on which of the following type(s) of relationships?
Question 7
0 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 8
0 out of 5 points
A correlation of r = 0.60 exists between a set of X and Y scores. If a constant of 10 is added to each score of both distributions, the value of r will _______.
Question 9
5 out of 5 points
If N is small, an extreme score _________.
Question 10
0 out of 5 points
If the correlation between two variables is -1.00 and the score of a given individual is 2.20 standard deviations above the mean on one of the variables, we would predict a score on the second variable of _________.
Question 11
0 out of 5 points
If 49% of the total variability of Y is accounted for by X, what is the value of r?
Question 12
5 out of 5 points
Correlation implies causation.
Question 13
0 out of 5 points
If a relationship is linear, _________.
Question 14
0 out of 5 points
In the equation Y = bX + a, X and Y are _________.
Question 15
0 out of 5 points
A researcher wanted to know if the order in which runners finish a race is correlated with their weight. She conducts an experiment and the data are given below.
Finishing order
1
2
3
4
5
6
Weight (lbs)
110
114
112
108
116
113
The correlation for these data equals _________.
Question 16
5 out of 5 points
The correlation coefficient between heights from the ground of two people on the opposite ends of a seesaw would be _________.
Question 17
0 out of 5 points
The lowest degree of correlation shown below is _________.
Question 18
0 out of 5 points
It is possible to compute a coefficient of correlation if one is given _________.
Question 19
5 out of 5 points
In a negative relationship, _________.
Question 20
0 out of 5 points
Which of the following is (are) not correct interpretations of Pearson r?
