The model is not appropriate when one of the sounds is recognizable to the listener, or if they are splitting resources that can be monitored simultaneously. For instance, a driver is able to monitor the road and listen to the radio at the same time. Broadbent s model would suggest that one of these signals should be either completely or partially filtered out, so that the other could be monitored. In this case, a resource sharing model would be more appropriate. Because they are able to time share TV and LA more efficiently than TV and Simulation.
Simulation is resource-limited, LA curve is almost data limited.
Changes in the allocation of resources to TV only causes negligible changes in test performance. Allocate more resources to studying.