A Partial Coefficient for Goodman and Kruskal's Gamma

摘要: Abstract Following Goodman and Kruskal's interpretation of their coefficient, γA,B, a partial γA, B|C is defined as “how much more probable it to get like than unlike orders in measures A B when pairs individuals differing on tied C but unselected any other measure are chosen at random from the population.” It shown that this coefficient weighted sum values γ various strata by categories C, where weight stratum i its proportion total which differ C. An empirical example illustrates calculation co-efficient.