Understanding satisfaction with assisted living (AL) from the residents' perspective is essential for creating supportive environments that are targeted toward the needs and desires of residents. Few measures have been tested to evaluate residents' satisfaction with AL. This study tested the reliability and validity of the Resident Satisfaction Index (RSI) in a sample of 501 AL residents. Based on Rasch analysis, there was support for item reliability and construct validity. Differential item functional (DIF) analysis was done to examine differences in item responses by age, gender, and cognition. Significant and substantive differences were identified for five items by gender, one item by cognition, and no differences were found by age group. Findings suggest the RSI is a reliable and valid measure to assess residents' satisfaction with AL and can be used to guide administrators and clinicians in making changes in these settings to increase residents' satisfaction.
Keywords: assisted living; measurement; satisfaction.