Power analysis and sample size before collecting data

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rathor1072@gmail.com
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Power analysis and sample size before collecting data

Post by rathor1072@gmail.com » Wed May 18, 2016 7:04 pm

SmartPls should add feature of power analysis to calculate sample size before collecting data.
Read this
Aguirre-Urreta, M., & Rönkkö, M. (2015). Sample size determination and statistical power analysis in PLS using R: an annotated tutorial. Communications of the Association for Information Systems, 36(3), 33-51.

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Hengkov
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Re: Power analysis and sample size before collecting data

Post by Hengkov » Thu May 26, 2016 6:51 am

It's a good idea, such as Stata software.

jmbecker
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Re: Power analysis and sample size before collecting data

Post by jmbecker » Mon Aug 08, 2016 12:41 pm

I think it is better to use a specialized software such as GPower (or R packages) for power analysis. They already provide all the necessary tests and are free of charge. In addition, GPower is quite intuitive.

A general problem with power analysis is the need for quite some difficult decisions. Especially the expected effect size if often not very easy to determine. GPower for example has many feature that help you determine the appropriate effect size.

Thus, we are not planning to add such a feature in the near future, but focus on the analysis part of path models.
Dr. Jan-Michael Becker, University of Cologne, SmartPLS Developer
Researchgate: https://www.researchgate.net/profile/Ja ... v=hdr_xprf
GoogleScholar: http://scholar.google.de/citations?user ... AAAJ&hl=de

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