A9.08
Performance-Based Measurement and the Secondary-Task Method
Cards in this group · 4
- A9.08.1Unchanged primary-task performance does not mean load hasn't increased — resources may simply have slack left
- A9.08.2The secondary-task method infers the primary task's remaining resources from the performance drop on an added task
- A9.08.3The secondary task's own presence changes how the primary task is performed — the measurement interferes with what it measures
- A9.08.4The secondary-task method is sensitive when the two tasks compete for the same resource, and underestimates load when they don't