The DOI matches its Crossref record; 65 of the 65 references it cites were found in a registry or an index.
The Improvement Rate Difference for Single-Case Research
Abstract
This article describes and field-tests the improvement rate difference (IRD), a new effect size for summarizing single-case research data. Termed “risk difference” in medical research, IRD expresses the difference in successful performance between baseline and intervention phases. IRD can be calculated from visual analysis of nonoverlapping data, and is easily explained to most educators. IRD entails few data assumptions and has confidence intervals. The article applies IRD to 166 published data series, correlates results with three other effect sizes: R 2, Kruskal-Wallis W, and percent of nonoverlapping data (PND), and reports interrater reliability of the IRD hand scoring. The major finding is that IRD is a promising effect size for single-case research.
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Cites
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Cited by
Combining nonoverlap and trend for single-case research: Tau-U
Parker, R. I., Vannest, K. J., Davis, J. L., & Sauber, S. B. (2011) · Behavior Therapy · doi:10.1016/j.beth.2010.08.006 · Cited by 1,468
Self-citationAn improved effect size for single-case research: nonoverlap of all pairs.
Parker, R. I., & Vannest, K. (2009) · Behavior Therapy · doi:10.1016/j.beth.2008.10.006 · Cited by 1,126
Self-citationEffect Size in Single-Case Research: A Review of Nine Nonoverlap Techniques
Parker, R. I., Vannest, K. J., & Davis, J. L. (2011) · Behavior Modification · doi:10.1177/0145445511399147 · Cited by 841
Self-citationEvaluating Intervention Effects in Single‐Case Research Designs
Vannest, K. J., & Ninci, J. (2015) · Journal of Counseling & Development · doi:10.1002/jcad.12038 · Cited by 665
Self-citationAcademic Benefits of Peer Tutoring: A Meta-Analytic Review of Single-Case Research
Bowman-Perrott, L., Davis, H., Vannest, K., Williams, L., Greenwood, C., & Parker, R. (2013) · School Psychology Review · doi:10.1080/02796015.2013.12087490 · Cited by 307
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Metadata
- Authors
- Parker, R. I., Vannest, K. J., & Brown, L.
- Venue
- Exceptional Children
- Publisher
- SAGE Publications
- Published
- 2009-01
- Volume
- 75
- Issue
- 2
- Pages
- 135-150
- ISSN
- 0014-4029 (ISSN-L)
- 2163-5560
- OpenAlex
- W2144016059
- Cited by
- 406
- References
- 65
- FWCI
- 36.91
- Type
- journal article
- Language
- en
- Open access
- closed
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.