The Collaborative International Dictionary of English v.0.48:

Self-examination \Self`-ex*am`i*na"tion\, n.
   An examination into one's own state, conduct, and motives,
   particularly in regard to religious feelings and duties.
   [1913 Webster]

WordNet (r) 3.0 (2006):

self-examination
    n 1: the contemplation of your own thoughts and desires and
         conduct [syn: introspection, self-contemplation, self-
         examination]