If you need a tool to calculate your sample size, you may want to try these links:
http://www.pwpamplona.com/wen/calcu/calculadora1.htm
An easy to use calculator from Navarra (Spain). In Spanish.
http://www.stat.ubc.ca/~rollin/stats/ssize/
A series of Java Script tools by Rollin Brant (University of British Columbia) to calculate sample size in the most frequent situations.
http://www.epibiostat.ucsf.edu/biostat/sampsize.html
A very complete web link from UCSF
http://biostat.mc.vanderbilt.edu/wiki/Main/PowerSampleSize
A free program from Vanderbilt University, by William Dupont and Walter Plummer.
http://hedwig.mgh.harvard.edu/sample_size/size.html
By David Schoenfeld , from the Massachusetts General Hospital- Harvard University.
http://www.sealedenvelope.com/power_binary.php
They also have a tool to create a randomisation list:
https://www.sealedenvelope.com/freerandomiser/v1/lists
More links in Spanish:
http://www.fisterra.com/mbe/investiga/9muestras/9muestras2.asp
http://www.psico.uniovi.es/Dpto_Psicologia/metodos/tutor.7/p3.html
http://www.seh-lelha.org/tamuestra.htm
Thanks for reading!
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Si quieres calcular el tamaño de tu muestra, quizá te interese probar los siguientes enlaces:
http://www.pwpamplona.com/wen/calcu/calculadora1.htm
Una calculadora fácil de usar de la Universidad de Navarra (España)
http://www.stat.ubc.ca/~rollin/stats/ssize/
Una serie de herramientas Java por Rollin Brant (Universidad de British Columbia), para calcular el tamaño de la muestra en las situaciones más frecuentes
http://www.epibiostat.ucsf.edu/biostat/sampsize.html
Un enlace muy completo de la Universidad de California San Francisco
http://biostat.mc.vanderbilt.edu/wiki/Main/PowerSampleSize
Un programa gratuito de la Vanderbilt University, por William Dupont y Walter Plummer.
http://hedwig.mgh.harvard.edu/sample_size/size.html
Por David Schoenfeld , del Massachusetts General Hospital- Harvard University.
http://www.sealedenvelope.com/power_binary.php
También tienen una herramienta para aleatorización en este enlace:
https://www.sealedenvelope.com/freerandomiser/v1/lists
Más enlaces en español:
http://www.fisterra.com/mbe/investiga/9muestras/9muestras2.asp
http://www.psico.uniovi.es/Dpto_Psicologia/metodos/tutor.7/p3.html
http://www.seh-lelha.org/tamuestra.htm
Gracias por leer!
Evidence Based Healthcare and Biostatistics for those who, as many doctors and health workers, hate numbers (thus the name of the blog). It aims to be a way to share ideas, resources, tools and training links, and a place to discuss specific health issues from an epidemiological perspective. Our desktop is a portrait of Karl Pearson (1857 - 1936), a prominent figure in Statistics and author of the book "The Grammar of Science" Please Share your comments!
Showing posts with label calculator. Show all posts
Showing posts with label calculator. Show all posts
Tuesday, January 31, 2012
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