Determine the kind of index of correlation appropriate for use in solving each of the following problems: a

Determine the kind of index of correlation appropriate for use in solving each of the following problems:

a. What is the coeffi cient of correlation between self-esteem and aptitude scores for a group of subjects?

b. What is the correlation between gender and being hired or not hired for a job when you have 60 men and 60 women with identical scores on a qualifying test for that job?

c. What is the correlation between the responses of 180 students to two test items when you know the right and wrong responses of these students on both test items?

d. What is the relationship between sociometric scores of a group of students and their academic rank in a high school class?

e. How is the value of an automobile from the day you drive it from the dealer’s showroom until it becomes an antique related to its age?