A scoring system for the affiliation motive was applied to TAT responses obtained in 2 studies where the need for affiliation was experimentally induced or assumed to be high. Those categories which discriminated between experimental and control groups were combined into an "over-all measure of n Affiliation" which in turn was shown to differentiate between experimental and control groups of the two studies. Additional evidence of the validity of the combined measure was obtained from sociometric data collected as part of the first study. (PsycINFO Database Record (c) 2006 APA, all rights reserved)