Variance as a Measure of Performance in an Aviation Context

Abstract

A combined measure of performance (i.e., constant error plus variable error) is a common approach to determining aircraft pilot performance. However, a variable error measure has worked well as a performance measure in highway driving. Twenty novice participants were recruited to participate in a study that tested flying performance in a simulator criterion trial following simulated flight training. The data were analyzed first using a common root mean square error measure (combined error). The same data were subsequently analyzed using a variable error measure and the results were compared and contrasted. Results indicated that the variable error approach was sensitive, precise, and efficient when measuring pilot performance. Explanations for why this is a particularly suitable approach in an aviation context are provided.