The study objective was to develop and test a new survey instrument that measures caregiver-centered communication. We developed a questionnaire inspired by the National Cancer Institute framework on patient-centered communication, focusing on family caregiver communication for this tool. The questionnaire includes 5 subscales: exchange of information, relationship with team, emotions, managing care, and decision-making. The initial questionnaire was reviewed by domain experts for face validity and edited further to include 30 items.