ABSTRACT
Goodman and Kruskal's gamma can range from -1 to +1 and takes no account of ties or the size of the table. It is simply the number of concordant pairs (C) minus the number of discordant pairs (D) divided by the number of concordant and discordant pairs:
So, for the data in Table 9.6 gamma is 0.78:
Minitab does not calculate Goodman and Kruskal's gamma.
