PSY325: Statistics for the Behavioral & Social Sciences 10 question quiz
The n1 in the denominator of a correlation formula indicates _________. (Points : 1) 
a multiple correlation
a negative correlation
a correlation designed for a group of data of any size
a correlation from sample data
Which of the following defines a linear relationship between variables? (Points : 1) 
As one variable rises and falls, the other does likewise.
The relationship is positive or negative, but not both.
The relationship between variables depends upon the range of the data.
As one variable increases or decreases, the other tends to level o
Under what circumstances would SE_{est} = 0? (Points : 1) 
If s_{y} = 0
If s_{y} = 1.0
If r_{xy}= 0
If r_{xy} = 1.0
Two variables are considered to be independent if the correlation of scores on the variables turns out to be close to___. (Points : 1) 
+1.00
0.00
1.00
Another name for the b value in a regression solution is _________. (Points : 1) 
the intercept
the regression coefficient
the error term
the criterion value
Theoretically, the standard error of the estimate is ___________. (Points : 1) 
the mean of all possible error scores
the sum of all possible error scores
the standard deviation of all error scores
the sum of all error score variances
Each point in a scatter plot represents which of the following? (Points : 1) 
A predicted value
A measure of either the x or the y variable
The group to which the measure belongs
The measure of both variables
the statistical relationship between x and y. 

an increased error in the prediction 

Since a correlation of +1 is considered “perfect,” a correlation of 1 is as “imperfect” as can be. (Points : 1) 
True
False
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