Dr Guidry Conducts a Study Examining the Relationship Between the Number

Dr. Guidry conducts a study examining the relationship between the number of friends one has and the experience of daily stress and life satisfaction. She randomly samples 1,500 elderly men and women in Nashville, Tennessee (the state capital) , located in the southern United States. Below are her findings.
•Life satisfaction and experience of daily stress: r =.57 (p = .01)
•Number of friends one has and experience of daily stress: r = .09, not sig.
•Number of friends one has and life satisfaction: r = .36 (p = .04)
In determining whether the relationship between two of Dr. Guidry's variables was statistically significant, which of the following must be considered?

A) Sample size and number of variables analyzed
B) Direction of the association and strength of the association
C) Sample size and effect size
D) The number of outliers and the direction of the association