Application of Regression Discontinuity in Investigating the Effectiveness of Lidcombe Program on Decreasing the Severity of Stuttering in Primary School Children: A Single-Subject Research
Background: In single-subject research, there is an autocorrelation between observations, that violates the assumption of observational independence. The regression discontinuity considers the correlation between observations over time and in different treatment stages (baseline, intervention, etc.)...
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| Format: | Article |
| Language: | fas |
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Vesnu Publications
2021-07-01
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| Series: | تحقیقات نظام سلامت |
| Subjects: | |
| Online Access: | http://hsr.mui.ac.ir/article-1-1292-en.html |
| _version_ | 1797975365290819584 |
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| author | Ali Halabisaz-Esfahani Akbar Hassanzadeh Behzad Mahaki Atefeh Mirmoeini Zahra Heidari |
| author_facet | Ali Halabisaz-Esfahani Akbar Hassanzadeh Behzad Mahaki Atefeh Mirmoeini Zahra Heidari |
| author_sort | Ali Halabisaz-Esfahani |
| collection | DOAJ |
| description | Background: In single-subject research, there is an autocorrelation between observations, that violates the assumption of observational independence. The regression discontinuity considers the correlation between observations over time and in different treatment stages (baseline, intervention, etc.). The aim of the current study was to compare the visual methods and regression discontinuity method in evaluating the effectiveness of the Lidcombe program on decreasing the severity of stuttering in primary school children of Isfahan City, Iran.
Methods: This study with single-subject design was conducted on four children (7-9 years old) who stuttered. Lidcombe program treatment was performed for 22 weeks and its effectiveness on children's speech characteristics was evaluated. Stuttering severity was measured with a rating scale. In order to analyze the data, visual analysis, effect size, and regression discontinuity were used.
Findings: Data analysis based on visual analyses as well as regression discontinuity indicated that most participants recorded a significant change as a decrease in severity of syllables stuttered, following the intervention. Regression coefficients in phase change from treatment to follow-up were significant, meaning that the Lidcombe program was effective over time and in phase change from the treatment stage to the follow-up.
Conclusion: The results of this study show the positive effect of Lidcombe program on decreasing the severity of stuttering in children and provide the preliminary evidence for the use of this treatment method for the children with stuttering. |
| first_indexed | 2024-04-11T04:34:24Z |
| format | Article |
| id | doaj.art-1aed9c238eec440d9ce99e0addb375c8 |
| institution | Directory Open Access Journal |
| issn | 1735-2363 2322-5564 |
| language | fas |
| last_indexed | 2024-04-11T04:34:24Z |
| publishDate | 2021-07-01 |
| publisher | Vesnu Publications |
| record_format | Article |
| series | تحقیقات نظام سلامت |
| spelling | doaj.art-1aed9c238eec440d9ce99e0addb375c82022-12-28T18:41:51ZfasVesnu Publicationsتحقیقات نظام سلامت1735-23632322-55642021-07-01172150158Application of Regression Discontinuity in Investigating the Effectiveness of Lidcombe Program on Decreasing the Severity of Stuttering in Primary School Children: A Single-Subject ResearchAli Halabisaz-Esfahani0Akbar Hassanzadeh1Behzad Mahaki2Atefeh Mirmoeini3Zahra Heidari4 MSc Student, Student Research Committee AND Department of Biostatistics and Epidemiology, School of Public Health, Isfahan University of Medical Sciences, Isfahan, Iran Lecturer, Department of Biostatistics and Epidemiology, School of Public Health, Isfahan University of Medical Sciences, Isfahan, Iran Professor, Department of Biostatistics, School of Public Health, Kermanshah University of Medical Sciences, Kermanshah, Iran MSc Student, Department of Speech and Language Pathology, School of Rehabilitation Sciences, Isfahan University of Medical Sciences, Isfahan, Iran Assistant Professor, Department of Biostatistics and Epidemiology, School of Public Health, Isfahan University of Medical Sciences, Isfahan, Iran Background: In single-subject research, there is an autocorrelation between observations, that violates the assumption of observational independence. The regression discontinuity considers the correlation between observations over time and in different treatment stages (baseline, intervention, etc.). The aim of the current study was to compare the visual methods and regression discontinuity method in evaluating the effectiveness of the Lidcombe program on decreasing the severity of stuttering in primary school children of Isfahan City, Iran. Methods: This study with single-subject design was conducted on four children (7-9 years old) who stuttered. Lidcombe program treatment was performed for 22 weeks and its effectiveness on children's speech characteristics was evaluated. Stuttering severity was measured with a rating scale. In order to analyze the data, visual analysis, effect size, and regression discontinuity were used. Findings: Data analysis based on visual analyses as well as regression discontinuity indicated that most participants recorded a significant change as a decrease in severity of syllables stuttered, following the intervention. Regression coefficients in phase change from treatment to follow-up were significant, meaning that the Lidcombe program was effective over time and in phase change from the treatment stage to the follow-up. Conclusion: The results of this study show the positive effect of Lidcombe program on decreasing the severity of stuttering in children and provide the preliminary evidence for the use of this treatment method for the children with stuttering.http://hsr.mui.ac.ir/article-1-1292-en.htmlstutteringspeechsingle-case studies as topicregression analysis |
| spellingShingle | Ali Halabisaz-Esfahani Akbar Hassanzadeh Behzad Mahaki Atefeh Mirmoeini Zahra Heidari Application of Regression Discontinuity in Investigating the Effectiveness of Lidcombe Program on Decreasing the Severity of Stuttering in Primary School Children: A Single-Subject Research تحقیقات نظام سلامت stuttering speech single-case studies as topic regression analysis |
| title | Application of Regression Discontinuity in Investigating the Effectiveness of Lidcombe Program on Decreasing the Severity of Stuttering in Primary School Children: A Single-Subject Research |
| title_full | Application of Regression Discontinuity in Investigating the Effectiveness of Lidcombe Program on Decreasing the Severity of Stuttering in Primary School Children: A Single-Subject Research |
| title_fullStr | Application of Regression Discontinuity in Investigating the Effectiveness of Lidcombe Program on Decreasing the Severity of Stuttering in Primary School Children: A Single-Subject Research |
| title_full_unstemmed | Application of Regression Discontinuity in Investigating the Effectiveness of Lidcombe Program on Decreasing the Severity of Stuttering in Primary School Children: A Single-Subject Research |
| title_short | Application of Regression Discontinuity in Investigating the Effectiveness of Lidcombe Program on Decreasing the Severity of Stuttering in Primary School Children: A Single-Subject Research |
| title_sort | application of regression discontinuity in investigating the effectiveness of lidcombe program on decreasing the severity of stuttering in primary school children a single subject research |
| topic | stuttering speech single-case studies as topic regression analysis |
| url | http://hsr.mui.ac.ir/article-1-1292-en.html |
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