If a participant is asked to perform two activities at the same time, performance will be improved if

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Quizplus · Accepted Answer

Performing two highly dissimilar activities that draw on different task-specific resources allows for less interference between the two tasks and can improve performance. If two highly similar activities that draw on the same task-specific resources are performed at the same time, interference and performance decrement are more likely to occur. The amount of task-general resources required by the activities or whether verbal processing is involved may have an impact on performance, but it is not as relevant as the similarity of the tasks.

If a Participant Is Asked to Perform Two Activities at the Same