1)The relationship between two variables controlling for the effect that a third variable has on one  of those variables can be expressed using a

1)The relationship between two variables controlling for the effect that a third variable has on one  of those variables can be expressed using a...?

a)Semi-partial correlation.

b)Bivariate correlation.

c)Point-biserial correlation.

d)Partial correlation.

2) A colleague has asked you to describe what a positive correlation represents. Which of the following is most accurate?

a. Two variables are unrelated.

b. As one score increases so does the other.

c. As one score increases so the other decreases.

d. Both a and b.

3) _________________ is a measure of correlation based upon the ranks of the data. It is typically used when the data consists of ____________ or is not meeting the assumption of ______________. However, if there are too many tied ranks, then _________________ is employed.

4)__________________ is the correlation of a variable with itself. When this linear association on a single variable is noted data gathered over successive periods of time, then is termed _____________________. However, if the association of this single variable is noted over space, then is termed ___________________________.