Self-determination theory (Deci and Ryan, 1985) was used to predict me
dical students' career choices for internal medicine or surgery based
on their experiences of the autonomy support provided by the instructo
rs in the two corresponding third-year clerkships. Fourth-year medical
students (n = 210) at three medical schools completed questionnaires
that assessed (1) retrospective prior likelihood (as of the end of sec
ond year) of their going into internal medicine and surgery, (2) their
perceived competence with respect to these two medical specialties, (
3) their interest in the problems treated in each specialty, (4) the a
utonomy support of the instructors on the two corresponding rotations,
(5) the current likelihood (late in the fourth year) of going into ea
ch of the two specialties, and (6) their actual residency choices. For
a subset (n = 64), actual prior likelihoods of going into the two car
eers had also been assessed at the end of their second year. Structura
l equation modeling confirmed, as hypothesized, (a) that perceived aut
onomy support of the corresponding clerkship would predict students' c
hoices of internal medicine or surgery, even after the effects of retr
ospective (and actual) prior likelihood had been removed, and (b) that
this relationship between perceived autonomy support and career choic
e was mediated by perceived competence and interest. The present study
suggests that students' experiences on clerkships do affect the likel
ihood that they will select particular specialties, and that students'
interest in the areas are good indicators of the selections they will
make. (C) 1997 Elsevier Science Ltd.