Occupational science is multidimensional.

T he development of a science of occupation is one of the goals of the profession of occupational therapy. Disagreement exists, however, as ro the definition of occupational science and therefore as to what is considered legitimate cx:cupational therapy research. An overly restrictive interpretation of the term occupational science wiU affect the funding and publication of research studies, resulting in porenrially valuable knowledge being lost ro the profession. We believe that occupational science comprises nor only the study of occupation (self-care, work, leisure) but also the componems of funcrion related to occupational performance (e.g., movement, cognition, emotion). Furthermore, we propose that research in occupational science should nor be restricted [0 treatmems involving purposeful aerivity. To address fully the domain of occupation, we must study facilit:uOlY agents that are nor traditionally called purposeful aCliuity.