“…The problem of validitythreatening publication bias in meta-analytic results drew early attention in the development of meta-analytic methods in the 1970s and has since then shown to be a widespread problem (cf. Atkinson, Furlong, & Wampold, 1982;Coursol & Wagner, 1986;Dickersin & Min, 1993;Levine, Asada, & Carpenter, 2009;Scherer, Langenberg, & Von Elm, 2007;Sterling, Rosenbaum, & Weinkam, 1995;Thornton & Lee, 2000). To illustrate the extent of the problem, consider Fanelli (2010b, p. 4) who found that ".…”