Background: Recently, the U.S. Air Force conducted several studies to
examine sex differences on pilot selection tests and training performa
nce. Methods: Research has focused on mean score performance, the stru
cture of ability, the predictive utility of pilot selection tests, and
the causal role of ability and prior flying knowledge in the acquisit
ion of additional flying knowledge and flying skills. Discussion: Desp
ite male-female mean score differences on pilot selection tests, confi
rmatory factor analyses indicated that the same factors were being mea
sured for both groups. In studies of predictive bias, no evidence of d
ifferential validity was found for male vs. female pilot trainees. An
examination of causal models of ability and prior flying knowledge on
the acquisition of additional flying knowledge and flying skills showe
d similar structure for men and women.