Family decisional conflict is assessed using four subscales of the Decisional Conflict Scale which assessed how well informed participants feel about their choices and the associated benefits and risks; the clarity of their values; the support they have in the decision-making process; and their level of uncertainty. It consists of 16 items followed by a Likert response of 1, strongly agree, to 5, strongly disagree. A mean score is obtained for each participant. The Decisional Conflict Scale (DCS) is translated into Korean by two bilingual individuals, using a forward-backward translation procedure, and completed pilot test.