Elston B, Goldstein M, Makambi KH. Item response theory analysis of the Outpatient Physical Therapy Improvement in Movement Assessment Log (OPTIMAL). Phys Ther. 2013;93:661–671.

In the article by Elston et al titled “Item Response Theory Analysis of the Outpatient Physical Therapy Improvement in Movement Assessment Log (OPTIMAL)” in the May 2013 issue of PTJ, Ms Elston's degrees were erroneously listed as “PT, MS.” Ms Elston's correct contact information is: B. Elston, MS, MSc, Department of Epidemiology, Center for Public Health and Clinical Epidemiology, Brown University, Box G-S121-2, Providence, RI 02912-9107 (USA). Address all correspondence to Ms Elston at: beth_elston{at}brown.edu.

The Journal regrets the error.

• © 2013 American Physical Therapy Association