Section 16

Question 1

When high scores on one variable are associated with high scores on the other variable, this suggests that the relationship is direct or inverse

Answer 1

Direct

Question 2

Which of the following values of R represent the strongest relationship
A. R = .00
B. R = -1.00
C. R= .95

Answer 2

C. R = -1.00

Question 3

For determining the correlation between a combination of two predictors to predict a third variable, which of the following should be computed.
A. R b. r

Answer 3

B. r

Question 4

If R(squared)2 = .25, what percentage of the variance is accounted for? 
A. 25% B. 75%

Answer 4

A. 25%

Question 5

Suppose a researcher was examining the validity of a combination of hours spent doing homework and attitudes toward school as predictors of grades in a course. Which correlational statistic should the research compute for this research problem?
A. R or B. r

Answer 5

B. r