I have tow questions regarding these analyses that I am yet to find an answer for.

**1) Rank-biserial**

Is it possible to run this in SPSS? I have not found this option within the program and cannot find relevant advice on any forums. I am looking for relationships between sets of ordinal and dichotomous/nominal data.

2) Point Biserial

For a different analyses I am comparing scale vs. dichotomous data. My understanding is that a point biserial analyses may be achieved by running a standard pearson co-efficient test. However, my sample size is small (N = 17) and features some outliers. Although the data pass shapiro wilk normality tests, SW is weak for samples of this size, and the charts do not really appear to approximate normal data. Would you agree that the use of point biserial coefficients would be unsuitable for this reason?

Many thanks