We have reviewed the psychometric properties of all real-world versions of the MET. Details of our findings can be found in the reference below.

Reference:  Rotenberg, S., Ruthralingam, M., Hnatiw, B., Neufeld, K., Yuzwa, K. E., Arbel, I., & Dawson, D. R. (2020). Measurement Properties of the Multiple Errands Test: A Systematic Review. Archives of Physical Medicine and Rehabilitation, 101(9), 1628–1642. https://doi.org/10.1016/j.apmr.2020.01.019