Client readiness for change is garnering increased interest both conceptually and methodologically. This article describes the reliability, validity, and utility of a measure of readiness for couple relationship change, Schneider's (2003) Stages of Relationship Change Questionnaire (SRCQ). Based on the Transtheoretical Model of Change, the instrument measures change along nine domains of marital functioning. Results indicate that this one-factor instrument may reliably measure readiness for change and discriminate between various stages of change. Most in this sample (n = 406) were in early stages of change, with men more often in the stage of precontemplation and women more often in contemplation. The SRCQ can be completed and scored in under 10 min. Clinical use and research implications are discussed. (Contains 8 tables.)