“…During the last 30 years, the prevalence of eating disorders has been studied, both in clinical samples and on a population level (Hoeck, 1993;Fombonne, 1995;Fairburn, Hay, & Welch, 1993;Devaud, Michaud, & Narring, 1995). Some surveys have assessed the prevalence of eating disorders in selected populations such as college students (Devaud, 1995;Ferrero & Rouget, 1991;Fombonne, 1995;Hoeck, 1995), in unselected populations (Garfinkel et al, 1995;Bushnell, 1990;Vollrath, Koch, & Angst, 1992;Warheit, 1993;Willi & Grossmann, 1990), or within the entire population, on a national level (Nielsen, 1990;Moller-Madson, & Nystrup, 1992). However, a few studies have attempted to assess the prevalence of eating disorders on a national scale and in a population of ''normal'' adolescents, a group of individuals known to be at special risk for eating disorders.…”