Dataset with participant characteristics and scores on patient-reported outcome measures that were used for construct validity analyses.

OPRO-M: Orthotic Patient-Reported Outcomes–Mobility, LEFS: Lower Extremity Functional Scale, OPUS-LEFS: Orthotic and Prosthetic User’s Survey–Lower Extremity Functional Status, PROMIS: Patient-Reported Outcome Measure Information System, AFO: Ankle-foot orthosis(es), KAFO: Knee-ankle-foot orthosis(es). (XLSX)