Which type of correlation would be appropriate to calculate for the each of the following sets of data?
A. Correlating gender and year in college (freshman, sophomore, junior, or senior).
Pearson's Correlation
B. Correlating rank in a graduating class (1^{st}, 2^{nd}, 3^{rd}, etc.) and score on a test of optimism
Spearman Rank Correlation
C. Correlating gender and score on a test of optimism
Point Biserial Correlation
D. Correlating scores on a test of optimism and scores on a test of subjective well-being.
Pearson Correlation.
E. Correlating rank in a graduating class of traditional college students and rank in initial salary offering for first job after graduating.
Spearman Rank Correlation.