If one wanted to assess the magnitude of the relationship between ...

[madam-professor]

If one wanted to assess the magnitude of the relationship between a continuous variable and a dichotomous variable, one would calculate a
 
  a. point-biserial correlation.
  b. Spearman rho.
  c. phi coefficient.
  d. Spearman-Brown coefficient

Question 2

The correlation computed on two data sets that are in the form of ranks is usually called the
 
  a. point-biserial correlation.
  b. phi coefficient.
  c. Spearman rho.
  d. product-moment correlation.

[Ptupou85]

Answer to Question 1

a

Answer to Question 2

c