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Mode Experiment

In support of the national implementation of the ICH CAHPS Survey, the Centers for Medicare & Medicaid Services (CMS) conducted a Mode Experiment to determine whether patients respond differently to the survey based on different data collection modes (mail, telephone or a mixed-mode approach). Data from the Mode Experiment will also be used to support development of appropriate adjustments to control for mode effects during the national implementation of the ICH CAHPS Survey. Mode Experiment data will also be used to determine whether ratings of in-center hemodialysis care varies by patient characteristics. If so, CMS will determine whether additional adjustments for patient characteristics on data from the national implementation of the ICH CAHPS Survey will be needed prior to publicly reporting the results of the survey.