The use of pilot study data in the estimation od sample size
In the two sample binomial case, one approach to the estimation of sample size is to conduct a pilot study and assume that the observed proportion in the pilot study have no sampling error and are in fact true population parameter which can be used directly in standard sample size formulas. This app...
- Autores:
-
Roser, Bernard
Muñoz, Alvaro
- Tipo de recurso:
- Article of journal
- Fecha de publicación:
- 1985
- Institución:
- Universidad Nacional de Colombia
- Repositorio:
- Universidad Nacional de Colombia
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.unal.edu.co:unal/24238
- Acceso en línea:
- https://repositorio.unal.edu.co/handle/unal/24238
http://bdigital.unal.edu.co/15275/
- Palabra clave:
- Estadística matemática
Tamaño de la muestra
Curvas de potencia
Distribución binomial
Inferencia bayesiana
Estudio piloto
Estadística matemática
Inferencia estadística
Probabilidades: Teoría estadística
- Rights
- openAccess
- License
- Atribución-NoComercial 4.0 Internacional
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Atribución-NoComercial 4.0 InternacionalDerechos reservados - Universidad Nacional de Colombiahttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Roser, Bernardf6beffb3-17c1-4c76-bec0-b5a6e3c97238300Muñoz, Alvaro316b4710-00c5-4525-b633-ef300fff5c443002019-06-25T22:35:12Z2019-06-25T22:35:12Z1985https://repositorio.unal.edu.co/handle/unal/24238http://bdigital.unal.edu.co/15275/In the two sample binomial case, one approach to the estimation of sample size is to conduct a pilot study and assume that the observed proportion in the pilot study have no sampling error and are in fact true population parameter which can be used directly in standard sample size formulas. This approach has conceptual difficultie swhen such a pilot study is small since there is typically considerable error in the observed proportions. In this paper; we propose an lternative method which takes into account the sampling error in pilot study data in the estimation of sample size for a larger study. Tables are provided comparing these two methods and it is shown that the former deterministic method may provide a grossly inaccurate estímate of the appropriate sample size for alarger study, partlcularly for small pilot studies.application/pdfspaUniversidad Nacional de Colombiahttp://revistas.unal.edu.co/index.php/estad/article/view/9874Universidad Nacional de Colombia Revistas electrónicas UN Revista Colombiana de EstadísticaRevista Colombiana de EstadísticaRevista Colombiana de Estadística; Vol. 6, núm. 11 (1985) Revista Colombiana de Estadística; Vol. 6, núm. 11 (1985) 0120-1751Roser, Bernard and Muñoz, Alvaro (1985) The use of pilot study data in the estimation od sample size. Revista Colombiana de Estadística; Vol. 6, núm. 11 (1985) Revista Colombiana de Estadística; Vol. 6, núm. 11 (1985) 0120-1751 .The use of pilot study data in the estimation od sample sizeArtículo de revistainfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1http://purl.org/coar/version/c_970fb48d4fbd8a85Texthttp://purl.org/redcol/resource_type/ARTEstadística matemáticaTamaño de la muestraCurvas de potenciaDistribución binomialInferencia bayesianaEstudio pilotoEstadística matemáticaInferencia estadísticaProbabilidades: Teoría estadísticaORIGINAL9874-17729-1-PB.pdfapplication/pdf763878https://repositorio.unal.edu.co/bitstream/unal/24238/1/9874-17729-1-PB.pdfdd29af6c255e0683137fcc2ec2b1bb28MD51THUMBNAIL9874-17729-1-PB.pdf.jpg9874-17729-1-PB.pdf.jpgGenerated Thumbnailimage/jpeg6037https://repositorio.unal.edu.co/bitstream/unal/24238/2/9874-17729-1-PB.pdf.jpg408d6ccb1f5b66f8d2348d0f79d3f66fMD52unal/24238oai:repositorio.unal.edu.co:unal/242382022-10-23 23:03:08.663Repositorio Institucional Universidad Nacional de Colombiarepositorio_nal@unal.edu.co |
| dc.title.spa.fl_str_mv |
The use of pilot study data in the estimation od sample size |
| title |
The use of pilot study data in the estimation od sample size |
| spellingShingle |
The use of pilot study data in the estimation od sample size Estadística matemática Tamaño de la muestra Curvas de potencia Distribución binomial Inferencia bayesiana Estudio piloto Estadística matemática Inferencia estadística Probabilidades: Teoría estadística |
| title_short |
The use of pilot study data in the estimation od sample size |
| title_full |
The use of pilot study data in the estimation od sample size |
| title_fullStr |
The use of pilot study data in the estimation od sample size |
| title_full_unstemmed |
The use of pilot study data in the estimation od sample size |
| title_sort |
The use of pilot study data in the estimation od sample size |
| dc.creator.fl_str_mv |
Roser, Bernard Muñoz, Alvaro |
| dc.contributor.author.spa.fl_str_mv |
Roser, Bernard Muñoz, Alvaro |
| dc.subject.proposal.spa.fl_str_mv |
Estadística matemática Tamaño de la muestra Curvas de potencia Distribución binomial Inferencia bayesiana Estudio piloto Estadística matemática Inferencia estadística Probabilidades: Teoría estadística |
| topic |
Estadística matemática Tamaño de la muestra Curvas de potencia Distribución binomial Inferencia bayesiana Estudio piloto Estadística matemática Inferencia estadística Probabilidades: Teoría estadística |
| description |
In the two sample binomial case, one approach to the estimation of sample size is to conduct a pilot study and assume that the observed proportion in the pilot study have no sampling error and are in fact true population parameter which can be used directly in standard sample size formulas. This approach has conceptual difficultie swhen such a pilot study is small since there is typically considerable error in the observed proportions. In this paper; we propose an lternative method which takes into account the sampling error in pilot study data in the estimation of sample size for a larger study. Tables are provided comparing these two methods and it is shown that the former deterministic method may provide a grossly inaccurate estímate of the appropriate sample size for alarger study, partlcularly for small pilot studies. |
| publishDate |
1985 |
| dc.date.issued.spa.fl_str_mv |
1985 |
| dc.date.accessioned.spa.fl_str_mv |
2019-06-25T22:35:12Z |
| dc.date.available.spa.fl_str_mv |
2019-06-25T22:35:12Z |
| dc.type.spa.fl_str_mv |
Artículo de revista |
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http://purl.org/coar/resource_type/c_2df8fbb1 |
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info:eu-repo/semantics/article |
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info:eu-repo/semantics/publishedVersion |
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http://purl.org/coar/resource_type/c_6501 |
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http://purl.org/coar/version/c_970fb48d4fbd8a85 |
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Text |
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http://purl.org/redcol/resource_type/ART |
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publishedVersion |
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https://repositorio.unal.edu.co/handle/unal/24238 |
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http://bdigital.unal.edu.co/15275/ |
| url |
https://repositorio.unal.edu.co/handle/unal/24238 http://bdigital.unal.edu.co/15275/ |
| dc.language.iso.spa.fl_str_mv |
spa |
| language |
spa |
| dc.relation.spa.fl_str_mv |
http://revistas.unal.edu.co/index.php/estad/article/view/9874 |
| dc.relation.ispartof.spa.fl_str_mv |
Universidad Nacional de Colombia Revistas electrónicas UN Revista Colombiana de Estadística Revista Colombiana de Estadística |
| dc.relation.ispartofseries.none.fl_str_mv |
Revista Colombiana de Estadística; Vol. 6, núm. 11 (1985) Revista Colombiana de Estadística; Vol. 6, núm. 11 (1985) 0120-1751 |
| dc.relation.references.spa.fl_str_mv |
Roser, Bernard and Muñoz, Alvaro (1985) The use of pilot study data in the estimation od sample size. Revista Colombiana de Estadística; Vol. 6, núm. 11 (1985) Revista Colombiana de Estadística; Vol. 6, núm. 11 (1985) 0120-1751 . |
| dc.rights.spa.fl_str_mv |
Derechos reservados - Universidad Nacional de Colombia |
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http://purl.org/coar/access_right/c_abf2 |
| dc.rights.license.spa.fl_str_mv |
Atribución-NoComercial 4.0 Internacional |
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http://creativecommons.org/licenses/by-nc/4.0/ |
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info:eu-repo/semantics/openAccess |
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Atribución-NoComercial 4.0 Internacional Derechos reservados - Universidad Nacional de Colombia http://creativecommons.org/licenses/by-nc/4.0/ http://purl.org/coar/access_right/c_abf2 |
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Universidad Nacional de Colombia |
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Universidad Nacional de Colombia |
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