Selecting Statistics
Statistical Test
Pearson's product moment r (equals phi)
Statistical Measure
Refer critical ratio for phi to a table of the unit normal curve
Notes
Pearson's r in this case is mathematically equivalent ro a point biserial r; the tests are almost equivalent.Critical ratio for phi: McNemar, Q. Psychological Statistics. Fourth edition. New York: Wiley 1969. p. 227
Critical ratio for phi:
SPSS: CROSSTABS
SAS: FREQ