The problem of this study was to determine the effects which the practicing of self-selected teaching skills by elementary education majors had on measures of personality and of teaching behavior. Personality measures were limited to self-confidence; attitudes toward self, children, and others; identification with the teaching role; and identification with the teaching profession. The teaching behavior measures were coded interaction episodes between a teacher trainee and four pupils in a microteaching setting. It was concluded that training experiences of short duration (e.g., eight weeks or less) (1) can be expected to positively affect specific, narrowly defined personality traits such as identification with the teaching role and identification with the teaching profession, (2) cannot be expected to affect broadly defined, global personality traits such as self-confidence or attitudes toward self, children, and others, and (3) cannot be expected to affect the classroom interaction of teachers and pupils.