The current landscape of adult hearing health care lacks standard outcome measures that align with the tools and metrics to assess hearing loss while correlating in meaningful ways with the individual’s perception of their loss and the impact on their quality of life. An ad hoc committee of the National Academies of Sciences, Engineering, and Medicine will examine the state of the science in outcomes research for interventions in adult hearing health care, with an emphasis on measures that are meaningful to the individual and the clinician. The committee will determine a core set of existing standard outcome measures, define the core outcome domains beyond communication that should be measured, and develop a framework and a set of recommendations to guide the development of standardized and meaningful measures that are fit for use in different settings.