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- Title
Functional principal components analysis of workload capacity functions.
- Authors
Burns, Devin M.; Houpt, Joseph W.; Townsend, James T.; Endres, Michael J.
- Abstract
Workload 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 these 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.
- Subjects
PRINCIPAL components analysis; PSYCHOLOGY; STATISTICAL correlation; FACTOR analysis; COEFFICIENTS (Statistics)
- Publication
Behavior Research Methods, 2013, Vol 45, Issue 4, p1048
- ISSN
1554-351X
- Publication type
Article
- DOI
10.3758/s13428-013-0333-2