ABSTRACT
Studies concerning the importance of g indicate that for many jobs, g alone predicts performance well (cf. Hough & Oswald, 2000). However, there is some controversy concerning the question whether specific abilities (sn) are needed to predict job or training performance. Some authors argue that specific abilities can predict only very little beyond g. Interestingly most of these studies were conducted in the field of aviation psychology (e.g., Ree & Earles, 1991; Olea & Ree, 1994; Ree & Carretta, 1996). In studies on the selection of military pilots it was argued that not much more than g was needed to predict different pilot criteria. In one of these studies Olea and Ree (1994) tested 4000 military pilot students with
apaper-penciltestbattery(AFOQT)andfoundthatgwasthebestpredictorforall criteriaandthatsncontributedlittlebeyondg.Furthermore,genteredfirstin almostallregressionequationsthatwerecalculated.
