Research on the question of creative benefit accompanying dyslexia has produced conflicting findings. In this meta-analysis, we determined summary effects of mean and variance differences in creativity between groups with and without dyslexia. Twenty studies were included (n = 770 individuals with dyslexia, n = 1,671 controls). A random-effects…

Researchers have increasingly investigated sources of variance in reading comprehension test scores, particularly with students with reading difficulties (RD). The purpose of this meta-analysis was to determine if the achievement gap between students with RD and typically developing (TD) students varies as a function of different reading…

Children with learning difficulties suffer from working memory (WM) deficits. Yet the specificity of deficits associated with different types of learning difficulties remains unclear. Further research can contribute to our understanding of the nature of WM and the relationship between it and learning difficulties. The current meta-analysis…

The accommodation of students with learning disabilities (LD) on mandatory high stakes tests continues to heighten concern over the equity and effectiveness of current practices. As students transition from high school, they are required to complete timed graduation tests and postsecondary entrance examinations. The most common accommodation…

This meta-analysis of 33 studies compared the pragmatic language skills of 825 students (ages 3-12) having language and/or learning disabilities with the skills of nondisabled peers. The students with disabilities demonstrated consistent and pervasive pragmatic deficits in conversation, which were more attributable to underlying language deficits…

This article presents results from two interrelated studies. The first study conducted a meta-analysis of the published literature since 1990 to determine the magnitude of achievement problems associated with attention-deficit/hyperactivity disorder (ADHD). Effect sizes were significantly different between participants with and without ADHD…