title: Investigating the effectiveness of special education: an analysis of methodology.
mesh_terms: D000124:Achievement; D002648:Child; D003162:Competency-Based Education; D004519:Education, Special / Q000592:standards*; D004521:Educational Measurement; D006040:Goals; D006801:Humans; D008607:Intellectual Disability / Q000534:rehabilitation; D007859:Learning Disabilities / Q000534:rehabilitation; D011932:Reading; D012107:Research Design / Q000592:standards*