Functional principal components analysis of workload capacity functionsBehavior Research Methods (2013)
AbstractWorkload capacity, an important concept in many areas of psychology, describes processing efficiency across changes in workload. The capacity coefficient is a function across time that provides a useful measure of this construct. Until now most analyses of the capacity coefficient have focused on the magnitude of this function, and often only in terms of a qualitative comparison (greater than or less than one). This work explains how a functional extension of principal components analysis can capture the time extended information of this functional data using a small number of scalar values chosen to emphasize the variance between participants and conditions. This approach provides many possibilities for a more fine grained study of differences in workload capacity across tasks and individuals.
Citation InformationDevin M Burns, Joseph W Houpt, James T Townsend and Michael J Endres. "Functional principal components analysis of workload capacity functions" Behavior Research Methods Vol. 45 (2013)
Available at: http://works.bepress.com/joseph_houpt/35/