“…A further point to note in this regard is that in psychological and social research one commonly encounters variables that present skewed distributions. Examples include: reaction times or response latency in cognitive studies (Shang-Wen & Ming-Hua, 2010;Ulrich & Miller, 1993;Van der Linden, 2006); clinical assessment indexes in drug abuse research (Deluchi & Bostrom, 2004); physical and verbal violence in couples (Soler, Vinayak, & Quadagno, 2000;Szinovacz & Egley, 1995); divorced parents' satisfaction with co-parenting relationships in family studies (McKenry, Clark, & Stone, 1999); and labour income (Diaz-Serrano, 2005) and health care costs (Zhou, Lin, & Johnson, 2009) in sociological studies.…”