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Are there any open task sets available to assess workload using secondary task measures?

Are there any open task sets available to assess workload using secondary task measures?

Performance on secondary tasks next to a primary task is sometimes used to assess mental workload (Ogden, Levine and Eisner, 1979). For example, the Stroop test as a secondary task has been evaluated by Gwizdka (2010).

However, a lot of effort goes into setting up these tasks, so I was wondering whether there are any open, ready-made task sets available which would be suitable for this purpose.

Some desirable characteristics I am looking for:

  • One task shouldn't be considerably harder than another.
  • Performing one task shouldn't take considerably longer than another.
  • Overall, one task shouldn't take too long, so the amount of tasks done can also be used as a measurement of mental workload.

Ogden, G. D., Levine, J. M., & Eisner, E. J. (1979). Measurement of workload by secondary tasks. Human Factors: The Journal of the Human Factors and Ergonomics Society, 21(5), 529-548.
Gwizdka, J. (2010, August). Using stroop task to assess cognitive load. In Proceedings of the 28th Annual European Conference on Cognitive Ergonomics (pp. 219-222). ACM.


Since you mentioned the Stroop specifically, several versions of the Stroop task are available for Inquisit here.

Randall Engle's lab also maintains a set of validated working memory tasks, which are available on request to researchers. They include full and shortened versions of operation-, symmetry-, reading- and rotation-span for E-Prime 2.0.

Assuming I read the question correctly, any of these should satisfy the requirements.