Measurement Under the Microscope: High Variability and Limited Construct Validity in Emergency Department Patient-Experience Scores.

Study Objective: We evaluate variability and construct validity in commercially generated patient-experience survey data in a large sample of US emergency departments (EDs).

Methods: We used Press Ganey patient-experience data from a national emergency medicine group from 2012 to 2015 across 42 facilities and 242 physicians. We estimated variability as month-to-month changes in percentile scores and through intraclass correlations.