Chapter 7 Correlation

Question 1

If we square the Pearson correlation coefficient (r) we have the…

Answer 1

coefficient of determination

Question 2

the coefficient of determination is a measure of…

Answer 2

the amount of variability in one variable that is shared by the other

Question 3

we can multiply the ____________ by 100 to get the percentage of of variability accounted for by two variables.

Answer 3

coefficient of determination

Question 4

correlation coefficients lie between

Answer 4

+1 and -1

Question 5

assumptions required for correlations

Answer 5

-normality and interval data

Question 6

If we have ordinal data we use

Answer 6

Spearmans correlation coefficient

Question 7

when we control for the effect of a third variable has on both variables in a correlation we are doing a

Answer 7

partial correlation

Question 8

If we control for the effect of a third variable on only one variable in a correlation the we call it a

Answer 8

semi-partial correlation