A Decade Review of Single‐Case Graph Construction in the Field of Learning Disabilities. Issue 2 (11th April 2021)

• Record Type: Journal Article
• Authors: Peltier, Corey; Morano, Stephanie; Shin, Mikyung; Stevenson, Nathan; McKenna, John W.
• Is Part Of: Learning disabilities research & practice. Volume 36:Issue 2(2021)
• Page Start: 121
• Page End: 135
• Publication Date: 2021-04-11
• Subjects: Learning disabilities -- Periodicals; Apprentissage, Troubles de l' -- Périodiques; 371.9
• DOI: 10.1111/ldrp.12245
• Languages: English
• ISSNs: 0938-8982

Abstract

Abstract: Single‐case research designs (SCRDs) are rigorous methods used to investigate the effects of interventions on socially important outcomes. A hallmark of SCRDs is repeated measurement of observable behavior presented in time‐series graphs. The construction of time‐series graphs can inflate Type I or Type II errors made via visual analysis. In the current investigation, we included all SCRDs published in four flagship journals in the field of learning disabilities ( Journal of Learning Disabilities, Learning Disabilities Quarterly, Learning Disabilities Research & Practice, Journal of Learning Disabilities: A Contemporary Journal ) over the last decade. A total of 47 studies including 315 graphs were included. Our findings suggest that ordinate scaling was appropriate across a majority of graphs; graphs, however, did not adhere to recommendations for x : y ratio or DPPXYR.