We addressed this barrier with our certificate of confidentiality, adherence to the Health Insurance Portability and Accountability Act, to Good Clinical Practice, to Federal human subject policies, and to practices required by our IRB. Most importantly, we explained these policies in terms that our potential participants understood. All written materials were analyzed for readability using the Flesch–Kincaid Readability Scale. A video produced by the HANDLS and NIA IRB Photography and Arts Section was presented to communities and to participants as part of the informed consent process. This video explains the study rationale, presents a tour of the MRVs, and provides a detailed description of the tests and procedures performed as a part of the study (http://www.youtube.com/user/NIAsHANDLS). The HANDLS team also distributed information packets that included documentation of IRB approval, letters of support from legislators, study descriptions, and neighborhood site maps.
