In an inverse relationship as one variable gets larger
? Question 1 10 out of 10 points
In an inverse relationship as one variable gets larger the other variable gets smaller.
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? Question 2 0 out of 10 points
If one calculates r for a set of data and r equals 0.84, one can be certain that the relationship between the variables is not spurious.
? Question 3 0 out of 10 points
A correlation coefficient expresses the direction but not the magnitude of a relationship.
? Question 4 10 out of 10 points
If scores are z scores and if r equals 1 then zX will always equal zY.
? Question 5 10 out of 10 points
The formula for rho is actually just the formula for Pearson’s r simplified to apply to lower order scaling.
? Question 6 0 out of 10 points
As the value of r increases, the proportion of variability of Y that is accounted for by X decreases.
? Question 7 0 out of 10 points
If one calculates r for a set of numbers and then adds a constant to each value of one of the variables, the correlation will change.
? Question 8 0 out of 10 points
Rho is used where one or both variables are at least of interval scaling.
? Question 9 0 out of 10 points
r decreases as N decreases.
? Question 10 0 out of 10 points
In order to compute r, we must first convert each score to its z score and then do our calculations with the z scores.
