Nursing homes need systems to measure progress toward providing more person-centered care (PCC). This article reports on development and testing of a toolkit to measure preference congruence, a PCC indicator. The toolkit consists of a questionnaire that asks residents about the importance of 16 personal care and recreational activities from the Minimum Data Set 3.0, as well as satisfaction with the way preferences are met. The toolkit’s Excel spreadsheet produces graphics showing preference congruence for an individual, household, and facility. In a 12-site pilot test, staff rated the toolkit highly for staff training, care planning, and PCC quality improvement.