Does pilot personality affect risk-taking with weather? Armchair logic says “Yes,” while data often say “No.” In this work, we apply the technique of z-score filtering (slice analysis) to pilot takeoff decisions made in the face of simulated adverse weather seen at taxiway level. Such a filtering technique might prove useful, provided emphasis is kept to maintain experiment-wise reliability. Statistical and methodological problems with personality data are discussed. The results of this particular data set showed a strong effect of weather on takeoffs, as measured by visibility, cloud ceiling, and the interaction of the two. But, despite best efforts, no strong effect of personality could be found in this data set. Theoretical reasons are discussed as to why it may be difficult to show that personality predicts behavior.
(2005). General Aviation VFR-Into-IMC: Z-Score Filtering of Demographic and Personality Variables, and the Personality Paradox. 2005 International Symposium on Aviation Psychology, 393-397.