How to proceed when both normality and sphericity are violated in repeated measures ANOVA
Adjusted F-tests have typically been proposed as an alternative to the F-statistic in repeated measures ANOVA. Despite considerable re-search, it remains unclear how these statistics perform under simultaneous violation of normality and sphericity. Accordingly, our aim here was to conduct a detailed...
| Autores: | , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2024 |
| País: | España |
| Institución: | Universidad de Murcia |
| Repositorio: | DIGITUM. Depósito Digital Institucional de la Universidad de Murcia |
| OAI Identifier: | oai:digitum.um.es:10201/143644 |
| Acceso en línea: | https://doi.org/10.6018/analesps.594291 http://hdl.handle.net/10201/143644 |
| Access Level: | acceso abierto |
| Palabra clave: | Greenhouse-Geisser adjustment Huynh-Feldt adjustment Ajuste Greenhouse-Geisser Ajuste Huynh-Feldt. CDU::1 - Filosofía y psicología::159.9 - Psicología |
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How to proceed when both normality and sphericity are violated in repeated measures ANOVACómo proceder cuando se violan la normalidad y la esfericidad en el ANOVA de medidas repetidasBlanca, María J.Alarcón, RafaelArnau, JaumeGarcía-Castro, F. JavierBono, RoserGreenhouse-Geisser adjustmentHuynh-Feldt adjustmentAjuste Greenhouse-GeisserAjuste Huynh-Feldt.CDU::1 - Filosofía y psicología::159.9 - PsicologíaAdjusted F-tests have typically been proposed as an alternative to the F-statistic in repeated measures ANOVA. Despite considerable re-search, it remains unclear how these statistics perform under simultaneous violation of normality and sphericity. Accordingly, our aim here was to conduct a detailed examination of Type I error and power of the F-statistic and the Greenhouse-Geisser (F-GG) and Huynh-Feldt (F-HF) adjustments, manipulating the number of repeated measures (3-6), sample size (10-300), sphericity (Greenhouse-Geisser epsilon estimator, , from its lower to upper limit), and distribution shape (slight to extreme deviations from normality). The findings show that the behavior of F-GGand F-HFdepends on the degree of violation of both normality, sphericity, and sample size. Overall, we suggest using F-GG under violation of sphericity and slight or moderate deviations from normality in all sample size; with severe deviations from both normality and sphericity F-GGmay be used with a sample size larger than 10; and with extreme deviation from both normali-ty and sphericity this statistic may be used with a sample size larger than 30. In the event of discrepant results between F-GGand F-HF, the choice depends on the value.Las pruebas F ajustadas se han propuesto como alternativa al estadístico F en el ANOVA de medidas repetidas. A pesar de existir investigación previa, falta evidencia sobre el comportamiento de estos estadísticos en caso de violación simultánea de normalidad y esfericidad. El objetivo del presente trabajo ha sido realizar un examen detallado del error de tipo I y la potencia del estadístico F y los ajustes de Greenhouse-Geisser (F-GG) y Huynh-Feldt (F-HF), manipulando el número de medidas repetidas (3-6), el tamaño de la muestra (10-300), la esfericidad (estimador Green-house-Geisser de épsilon, , desde su límite inferior al superior), y la forma de la distribución (desde desviaciones leves a extremas de la normalidad). Los resultados muestran que el comportamiento de F-GG y F-HF depende del grado de violación de la normalidad, esfericidad y tamaño muestral. En general, se sugiere utilizar F-GG en caso de violación de la esfericidad y desviaciones leves o moderadas de la normalidad; con desviaciones graves de ambos, F-GG puede utilizarse con un tamaño muestral superior a 10; y con desviaciones extremas, este estadístico puede utilizarse con un tamaño muestral superior a 30. En caso de resultados discrepantes entre F-GG y F-HF, la elección depende del valor .Universidad de Murcia. Servicio de Publicaciones202420242024info:eu-repo/semantics/articleapplication/pdf15application/pdfhttps://doi.org/10.6018/analesps.594291http://hdl.handle.net/10201/143644reponame:DIGITUM. Depósito Digital Institucional de la Universidad de Murciainstname:Universidad de MurciaInglés"Sin financiación externa a la Universidad"info:eu-repo/semantics/openAccessAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/oai:digitum.um.es:10201/1436442026-05-27T12:40:41Z |
| dc.title.none.fl_str_mv |
How to proceed when both normality and sphericity are violated in repeated measures ANOVA Cómo proceder cuando se violan la normalidad y la esfericidad en el ANOVA de medidas repetidas |
| title |
How to proceed when both normality and sphericity are violated in repeated measures ANOVA |
| spellingShingle |
How to proceed when both normality and sphericity are violated in repeated measures ANOVA Blanca, María J. Greenhouse-Geisser adjustment Huynh-Feldt adjustment Ajuste Greenhouse-Geisser Ajuste Huynh-Feldt. CDU::1 - Filosofía y psicología::159.9 - Psicología |
| title_short |
How to proceed when both normality and sphericity are violated in repeated measures ANOVA |
| title_full |
How to proceed when both normality and sphericity are violated in repeated measures ANOVA |
| title_fullStr |
How to proceed when both normality and sphericity are violated in repeated measures ANOVA |
| title_full_unstemmed |
How to proceed when both normality and sphericity are violated in repeated measures ANOVA |
| title_sort |
How to proceed when both normality and sphericity are violated in repeated measures ANOVA |
| dc.creator.none.fl_str_mv |
Blanca, María J. Alarcón, Rafael Arnau, Jaume García-Castro, F. Javier Bono, Roser |
| author |
Blanca, María J. |
| author_facet |
Blanca, María J. Alarcón, Rafael Arnau, Jaume García-Castro, F. Javier Bono, Roser |
| author_role |
author |
| author2 |
Alarcón, Rafael Arnau, Jaume García-Castro, F. Javier Bono, Roser |
| author2_role |
author author author author |
| dc.subject.none.fl_str_mv |
Greenhouse-Geisser adjustment Huynh-Feldt adjustment Ajuste Greenhouse-Geisser Ajuste Huynh-Feldt. CDU::1 - Filosofía y psicología::159.9 - Psicología |
| topic |
Greenhouse-Geisser adjustment Huynh-Feldt adjustment Ajuste Greenhouse-Geisser Ajuste Huynh-Feldt. CDU::1 - Filosofía y psicología::159.9 - Psicología |
| description |
Adjusted F-tests have typically been proposed as an alternative to the F-statistic in repeated measures ANOVA. Despite considerable re-search, it remains unclear how these statistics perform under simultaneous violation of normality and sphericity. Accordingly, our aim here was to conduct a detailed examination of Type I error and power of the F-statistic and the Greenhouse-Geisser (F-GG) and Huynh-Feldt (F-HF) adjustments, manipulating the number of repeated measures (3-6), sample size (10-300), sphericity (Greenhouse-Geisser epsilon estimator, , from its lower to upper limit), and distribution shape (slight to extreme deviations from normality). The findings show that the behavior of F-GGand F-HFdepends on the degree of violation of both normality, sphericity, and sample size. Overall, we suggest using F-GG under violation of sphericity and slight or moderate deviations from normality in all sample size; with severe deviations from both normality and sphericity F-GGmay be used with a sample size larger than 10; and with extreme deviation from both normali-ty and sphericity this statistic may be used with a sample size larger than 30. In the event of discrepant results between F-GGand F-HF, the choice depends on the value. |
| publishDate |
2024 |
| dc.date.none.fl_str_mv |
2024 2024 2024 |
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info:eu-repo/semantics/article |
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article |
| dc.identifier.none.fl_str_mv |
https://doi.org/10.6018/analesps.594291 http://hdl.handle.net/10201/143644 |
| url |
https://doi.org/10.6018/analesps.594291 http://hdl.handle.net/10201/143644 |
| dc.language.none.fl_str_mv |
Inglés |
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Inglés |
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"Sin financiación externa a la Universidad" |
| dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| eu_rights_str_mv |
openAccess |
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Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ |
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application/pdf 15 application/pdf |
| dc.publisher.none.fl_str_mv |
Universidad de Murcia. Servicio de Publicaciones |
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Universidad de Murcia. Servicio de Publicaciones |
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reponame:DIGITUM. Depósito Digital Institucional de la Universidad de Murcia instname:Universidad de Murcia |
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Universidad de Murcia |
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DIGITUM. Depósito Digital Institucional de la Universidad de Murcia |
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DIGITUM. Depósito Digital Institucional de la Universidad de Murcia |
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