Takes the dominance matrix provided and computes the d-statistics:
dw - within-subjects d-statistic
db - between-subjects d-statistic
db_dw - sum of dw and db, omnibus test of whether one group is higher than the other
Cliff, N. (1993). Dominance statistics: Ordinal analyses to answer ordinal questions.
Psychological Bulletin, 114(3), 494-509.
Cliff, N. (1996). Ordinal methods for behavioral data analysis. Mawhaw NJ: Lawerence Erlbaum.