This article presents results of a study the author recently conducted on the role of traditional institutional research (IR) offices in support of accreditation activities and institutional effectiveness. The purpose of the study was to confirm or disconfirm the utility of a theoretical model developed by Brittingham, O'Brien, and Alig (2008) of the role of IR offices in the accreditation process, based on a case study of two-year comprehensive community colleges across the country. Community colleges for the study were selected to capture possible variations based on size and location, including state and regional accrediting agency. All six regional accrediting agencies were represented in the sample, and no more than one institution from a state was included. The office of institutional research (IR) at a community college can provide valuable assistance in supporting accreditation and institutional effectiveness using this proven model.