The questionnaire contained 52 items, including the following domains: demographics (11 items), knowledge (12 items), attitudes (18 items), practice behaviors (4 items), and additional descriptive questions for advanced care planning practice information (7 items). Knowledge items contained statements allowing respondents to choose one answer appropriate for the question. Attitude and practice behavior items used a five-point Likert scale ranging from 1 (strongly agree) to 5 (strongly disagree). Several descriptive questions that were added to the survey tried to capture current advanced care planning practice in respondents’ clinical settings with the intention of identifying barriers to advanced care planning practice.