Study excerpt: "We used a prospective, qualitative descriptive design, identifying patients likely to need complex decision-making and interviewing...

Study excerpt: "We used a prospective, qualitative descriptive design, identifying patients likely to need complex decision-making and interviewing their family members. . . . We applied purposive sampling technique using maximum variation, varying on attributes shown to explain differences in attitudes about the use of life support, including ethnicity, gender, and socioeconomic status (SES). Ethnicity was stratified into 2 main groups, African American and Caucasian; SES was stratified into presence or absence of private insurance (including Medicare with private supplement)." Adams, J. A., Anderson, R. A., Docherty, S. L., & Steinhauser, K. E. (2014). Nursing strategies to support family members of ICU patients at high risk of dying.Heart & Lung, 43(5), 406-415. Excerpt from page 407. The sampling method in this study was

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