The calculated Pearson's r was –.95 in a research study on number of hours parents spent at children's sporting events and number of arrests those children had experienced by age 30. What does this Pearson's value signify?
(Select all that apply.)
a. No relationship
b. Weak linear relationship
c. Moderate linear relationship
d. Strong linear relationship
e. Positive relationship
f. Inverse relationship
g. Negative relationship
ANS: D, F, G
Pearson's product-moment correlation is represented by the letter r, and the value of the r is always between –1.00 and +1.00. A value of zero indicates no relationship between the two variables. The further the value from zero, the stronger the relationship. The number indicates the strength of the relationship, and the sign connotes whether that relationship is positive or negative (inverse). Consequently, a relationship of –.60 is exactly as strong as a relationship of .60, although one is a positive relationship and the other a negative, or inverse, one. Values greater than .50 or less than –.50 indicate strong correlations.
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