This thesis has examined physical therapists’ (PTs’) beliefs about successful patient outcomes (SPO). Literature on PTs’ beliefs about SPO is extremely limited and outcomes are not clearly defined. The purpose of this research was to obtain a deeper understanding of PTs’ beliefs about SPO by asking: 1) what are PTs’ beliefs about factors that facilitate SPOs; 2) what are PTs’ beliefs about factors that interfere with SPOs; and 3) what factors influenced the formation of PTs’ beliefs. A subquestion was whether there were any differences between novice and experienced PTs.