Figure 1. Fluid intelligence and multitasking tasks.

(a) Shows an example of a fluid reasoning item (trial). The Cattell test yields scores on four subtests used for further modelling. (b) Shows the multitasking task, which is a simulation of a hotel environment, in which participants were asked to perform each of the five tasks for equal amounts of time within a 10-min period. Variables-of-interest are the number of different tasks people performed and total time misallocated.