“…In previous studies, researchers investigating gender differences with reading difficulties have discovered a wide range of gender ratios, but the origin of this gender difference in prevalence rates is unknown. Several characteristics of the individual studies may have impacted previous findings, including differences in identification criteria, the types of reading measures used in identification procedures, and differences in sample sizes and year of publication (e.g., Hawke, Wadsworth, Olson, & DeFries, 2007; Liederman, Katrowitz, & Flannery, 2005; Limbrick, Wheldall, & Madelaine, 2012; Siegel & Smythe, 2005).…”