This report provides a summary of RAND's field test of survey questions and report formats that health insurance plans and sponsors can use to assess health plan performance. RAND was responsible for development and testing of survey items targeted toward Medicaid and AFDC recipients. The Medicaid-targeted items were developed from a review of the published literature, previously used consumer-satisfaction surveys, and the results of three focus groups and over 50 cognitive interviews conducted with persons on Medicaid (in both English and Spanish). Included in this report is a description of the sample and response rate, followed by results of the field test. Results include an examination of failure to follow skip instructions, response inconsistencies (for a pair of utilization items), item frequencies, mode effects (telephone versus self-administration), differences by target (adult versus child), impact of three response formats on global ratings of the health plan, evaluation of hypothesized item groupings, and a description of ongoing field test activity.