I need to find scientific assessment information
Two databases that index assessments are CINAHL and Health and Psychosocial Instruments (HAPI). I looked for this assessment in both of them and found only a reference for the Mental Measurements Yearbook.
All I can suggest is that you check ProQuest, OT Search and OT Seeker (http://www.otseeker.com/) in case there was review of the assessment in the general or OT literature that CINAHL and HAPI missed. If you can't find anything in any of those places, I suggest you talk to your professor.