A spurious democracy has influenced both our research methods (I am sometimes tempted to define validity as part of the context of an experiment demanding so little in the way of esoteric gift that any number can play at it, provided they have taken a certain number of courses) and our research subjects (it would be deemed snobbish to investigate only the best people).

Clinical and Cultural Aspects of the Aging Process, p. 485 - Individualism Reconsidered (1954)