Members of Generation Y are widely assumed to be better at multi-tasking than people who are older than they are. Proponents of very open office environments use this supposedly greater ability to do several cognitive tasks both well and simultaneously to support the evolution of more and more open workplaces. Work by Carrier and his colleagues indicates that they should rethink their position on younger multi-taskers.
In a study investigating “Whether changes in the technological/social environment in the United States over time have resulted in concomitant changes in the multitasking skills of younger generations,” this team of California based researchers found that although members of Generation Y multitasked more than members of Generation X or Baby Boomers, across all three generations there were “similar mental limitations in the types of tasks that can be multitasked.”
These researchers defined Baby Boomers as those born between 1946 and 1964, Generation Xers as born between 1965 and 1979 and members of the Net Generation (or Generation Y) as born after 1980.
These findings supplement those of Ophir and his colleagues. They determined that people who do more multi-tasking are not better at transitioning form one task to another than people who multi-task less often, probably because they are more easily distracted: “heavy media multitaskers performed worse on a test of task-switching ability, likely due to reduced ability to filter out interference.” Media whose use was assessed could take one of 12 different forms “print media, television, computer-based video (such as YouTube or online television episodes), music, nonmusic audio, video or computer games, telephone and mobile phone voice calls, instant messaging, SMS (text messaging), email, web surfing, and other computer-based applications (such as word processing).”
Designing for multi-tasking is clearly designing for trouble.
L. Mark Carrier, Nancy Cheever, Larry Rosen, Sandra Benitez, and Jennifer Chang. 2009. “Multitasking Across Generations: Multitasking Choices and Difficulty Ratings in Three Generations of Americans.” Computers in Human Behavior, vol. 25, pp. 483-489.
Eyal Ophir, Clifford Nass, and Anthony Wagner. 2009. “Cognitive Control in Media Multitaskers.” Proceedings of the National Academy of the Sciences, vol. 106, pp. 15583-15587.