This article explored how providing pediatricians with test accuracy information might impact patient management. Study participants were 653 pediatricians who completed surveys that were sent to a random selection of 1,502 pediatricians across the United States. Two clinical vignettes—“pertussis vignette” and “urinalysis vignette”—were presented to participants in a mailed questionnaire. Participants were randomly assigned questionnaires where both vignettes varied based on test information provided. Vignettes did not provide more information (control group), presented test characteristics (TC), or defined test characteristics (TC defined). Participants were to make patient management decisions based on the provided information.