For a group of graduating college seniors,a researcher records each student's rank in his/her high school graduating class and the student's rank in the college graduating class.Which correlation should be used to measure the relationship between these two variables?
A)Pearson correlation
B)Spearman correlation
C)Point-biserial correlation
D)Phi-coefficient

Question

Quizplus · Accepted Answer

The Spearman correlation is used to measure the relationship between two variables where both variables are ranked data, such as the case of this group of graduating college seniors. The Pearson correlation assumes normal distribution and linear relationship between variables, which may not be the case for ranked data. The point-biserial correlation is used when one variable is dichotomous (e.g., pass/fail) and the other is continuous, which is not the case in this scenario. The phi-coefficient is used to measure the association between two dichotomous variables.

For a Group of Graduating College Seniors,a Researcher Records Each