“…Among adults, prevalence of gambling addiction is between 1% and 3% of the U.S. population as well as other countries such as Australia, Canada, China, Norway, Switzerland, and Spain (Becona, 1993; Bondolfi, Osiek, & Ferrero, 2000; Cook, 1987; Desai, Desai, & Potenza, 2007; French et al, 2008; Griffiths, 2009a; Griffiths, 2009b; Ladouceur, Jacques, Ferland, & Giroux, 1999b; Petry, 2005, 2007; Philippe & Vallerand, 2007; Schofield, Mummery, Wang, & Dickson, 2004 [lifetime]; Shaffer et al, 1999; Shaffer & Hall, 2001; Sommers, 1988; Stucki & Rihs-Middel, 2007; Volberg, 1994 [lifetime]; Volberg & Steadman, 1988 [lifetime]; Wong & So, 2003), although a two large-sample studies found a prevalence of 0.15% in Norwegian adults (Gotestam & Johansson, 2003) and 4.2% among Texas, U.S. adults (Feigelman, Wallisch, & Lesieur, 1998 [lifetime measure]). Current prevalence rates of pathological gambling may be as high as 15% in some unique populations of teens and adults (e.g., Aboriginal population in North America; Wardman, el-Guebaly, & Hodgins, 2001).…”