PSY 361, Homework

 

Homework #1 (Chapter 3)

 

1) What does a correlation coefficient do?

 

2) With regards to the regression line, what is meant by best-fitting line?

 

3) You examined the relationship between self-esteem and assertiveness. Your calculated r-value is 0.76. If you had 12 subjects, is this a significant correlation?

 

4) When should one use the Spearman rho correlation method?

 

5) The correlation between scores on the GRE and graduate studentsí grade point averages is .866. What is the coefficient of alienation?