"Identity-related behavioral intentions that had been noticed by other people were translated into action less intensively than those that had been ignored. . . . when other people take notice of an individual's identity-related behavioral intention, this gives the individual a premature sense of possessing the aspired-to identity."
-- Gollwitzer at al (
2009)
This empirical finding flies in the face of conventional wisdom about the motivational effects of public goal-setting, but rings true to my experience. Belief is, apparently, fungible -- when you know that people think of you as an x-doer, you afffirm that self-image more confidently than you would if you had only your own estimation to go on.
colinmarshall and myself have already become aware of the dangers of vanity to any non-trivial endeavor, but it's nice to have some empirical corroboration. Keep your head down, your goals relatively private, and don't pat yourself on the back until you've got the job done.