The BDAC provides collaborative support in the design, execution and analysis of clinical trials and epidemiology studies conducted at the Boston OAIC. Additionally, the BDAC provides mentoring and collaborative opportunities for students and junior faculty in quantitative aspects of the study of physical function and impairments in aging. The BDAC is equipped to provide critical services on a consulting basis (e.g. in an advisory capacity in critical review of study data collection procedures) and more formally (e.g. in conducting simulation studies and power calculation). Furthermore, the BDAC provides support for ongoing projects by providing critical review and expertise in evaluating study conduct, or more extensive, pre-specified contributions to trial objectives. Support services for study completion are also available in providing guidance and assistance in statistical analyses, as well as co-authorship of abstracts and manuscripts describing study results.