Identification of variables related to leadership in general may be distinguished from predicting leadership in defined situations. Variables of general relevance may be only modestly valid in specific contexts. An attempt was made to develop a generally valid leadership index on the CPI. 179 nominated high school leaders were contrasted with 2411 other students; the resulting index included dominance, self-acceptance, well-being, and achievement via independence weighted positively and good impression weighted negatively. A correlation ratio of +.34 was obtained in cross-validation on 164 college students, and norms were presented for 1371 high school students. Conceptual analysis showed the index to be diagnostic of dominance, self-confidence, and aggressiveness at one pole, and of caution, patience, and submissiveness at the other. (26 ref.) (PsycINFO Database Record (c) 2006 APA, all rights reserved). © 1969 American Psychological Association.