Since the introduction of the specific learning disability (SLD) classification in federal special education legislation, there has been considerable ambiguity and controversy about the criteria that should be used in the determination of SLD (Kavale & Flanagan, 2007; Zumeta et al., 2014). Various models have been introduced to identify…

Response to intervention (RTI) is an approach to instruction, assessment, and intervention that enables early identification of students who are experiencing academic or behavioral difficulties. The jurisdictions served by the Regional Educational Laboratory Northeast and Islands expressed interest in a study of whether and how state education…