Capacity Equivalence Curves: A Double Trade-Off Curve Method for Equating Task Performance

Abstract

A dual-task technique for developing mental workload scales was described and evaluated. This technique, the method of double trade-off curves, can be used to equate secondary task performance levels of different tasks. The results from two different mental workload experiments were consistent with the assumptions underlying the technique.

Workload Assessment for the Combat Vehicle Command and Control Company- Level Evaluation

“…However, 36 percent disagreed that automation reduces overall workload. A number of researchers have described the negative workload impacts that often are associated with the introduction of automated aids for complex operator workstations (e.g., Colle, Amell, Ewry & Jenkins, 1988;Weirwille, Rahimi, & Casali, 1985).…”

Estimating a Mental Workload Redline in a Simulated Air-to-Ground Combat Mission

“…Accomplishment scores have been defined within a measurement-theoretic approach to mental workload, and they have been used to develop and evaluate secondary task measures of mental workload in Region A (Colle, Amell, Ewry, & Jenkins, 1988;Colle & Reid, 1997, 1999. Conceptually, accomplishment scores are indexes of the amount of mental work accomplished.…”