We thank Professor Dekker for his letter1 and interest in our paper2. We welcome Professor Dekker?s challenges as part of the healthy peer review process, and offer the following responses.
Dobson, F., Bennell, K. L., Hinman, R., Roos, E. M., Abbott, J. H., Stratford, P., Davis, A. M., Buchbinder, R., Snyder-Mackler, L., Hansen, P., Thumboo, J., & Henrotin, Y. (2013). OARSI recommended performance-based tests to assess physical function in osteoarthritis of the hip or knee: authors' reply. Osteoarthritis and Cartilage, 21(10), 1625 - 1626. https://doi.org/10.1016/j.joca.2013.07.011