“…Social class [15] and educational level [4,6,7,[10][11][12][13][14]16,[19][20][21] have been reported to be associated with preferences for involvement in decision-making in a variety of settings. A relationship between race/ethnic group and preferences for involvement has been demonstrated by some studies [17,[22][23][24]. However, study methodology has not always reflected the complexities of ethnic group classification systems.…”