Assessments will be administered via telephone by a research assistant blind to group assignment. Participants will complete outcome assessments upon enrollment (T1) and at 8 weeks (T2), 20 weeks (T3) and 44 weeks (T4) later. The T2 assessment captures the short-term outcomes of the most intensive part of the intervention (i.e., after six weekly sessions). The T3 assessment will capture the short-term outcomes at the end of the full intervention. The T4 assessment explores the sustained effect of BA/PS (six months after BA/PS ends). The study aim is to test whether the BA/PS intervention affects the "slope" of functional recovery over time. With the longitudinal data, the investigators will also be able to explore the pace of improvement and whether the two groups differ at these clinically relevant time points.
