“…Similarly for the SCS, we averaged published data from several reports using Kendall and Sheldrick’s (2000) methods to weight studies’ means and SD s by sample sizes to estimate population values. Studies contributing SCS normative data were Ingledew, Hardy, and Cooper (1992); Katz and Singh (1986); Flett, Blankstein, Bator, and Pliner (1989); Goff (2010); MacLachlan (1985); Mezo and Heiby (2004); Redden, Tucker, and Young (1983); Richards (1985); and Rosenbaum (1980; only data from the English-language SCS included), which yielded pooled M = 26.0, SD = 22.3. Mindful of patients’ difficulty in completing the original ASQ (Peterson et al, 1982), Dykema, Bergbower, Doctora, and Peterson (1996) created the short form with better internal consistency and strong validity used in this study.…”