Size of the groups in PLS Multigroup analysis
Size of the groups in PLS Multigroup analysis
I would like to ask whether there are any conditions regarding the size of the groups for PLS-MGA. I have 70 observations in one group and 200 in the other. There is a huge difference between the two groups in terms of observations and I am not sure if this will affect the reliability of the analysis.
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- SmartPLS Developer
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- Real name and title: Dr. Jan-Michael Becker
Re: Size of the groups in PLS Multigroup analysis
We know that it will affect the Permutation approach and therefore also Measurement Invariance testing. The other methods are supposed to be robust against unequal group sizes.
However, 70 observations might generally be too low for a reliable PLS analysis independent of a multi-group analysis.
However, 70 observations might generally be too low for a reliable PLS analysis independent of a multi-group analysis.
Dr. Jan-Michael Becker, BI Norwegian Business School, SmartPLS Developer
Researchgate: https://www.researchgate.net/profile/Jan_Michael_Becker
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Researchgate: https://www.researchgate.net/profile/Jan_Michael_Becker
GoogleScholar: http://scholar.google.de/citations?user ... AAAJ&hl=de
Re: Size of the groups in PLS Multigroup analysis
Dear Becker, thanks for your answer.jmbecker wrote:We know that it will affect the Permutation approach and therefore also Measurement Invariance testing. The other methods are supposed to be robust against unequal group sizes.
However, 70 observations might generally be too low for a reliable PLS analysis independent of a multi-group analysis.
If I am right, SMARTPLS uses permutation approach only?
Would you kindly let me know what other methods can be used for multigroup analysis in PLS?
Moreover, how equal should be the sub-samples sizes for reliable permutation analysis?
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- SmartPLS Developer
- Posts: 1282
- Joined: Tue Mar 28, 2006 11:09 am
- Real name and title: Dr. Jan-Michael Becker
Re: Size of the groups in PLS Multigroup analysis
SmartPLS 3 offers you 4 different approaches (2 parametric approaches based on adapted t-tests and a non-parametric approach based on bootstrapping combined in the PLS-Multigroup Feature) and the Permutation approach.
See also
https://www.smartpls.com/documentation/ ... p-analysis
https://www.smartpls.com/documentation/ ... smartpls-3
See also
https://www.smartpls.com/documentation/ ... p-analysis
https://www.smartpls.com/documentation/ ... smartpls-3
Dr. Jan-Michael Becker, BI Norwegian Business School, SmartPLS Developer
Researchgate: https://www.researchgate.net/profile/Jan_Michael_Becker
GoogleScholar: http://scholar.google.de/citations?user ... AAAJ&hl=de
Researchgate: https://www.researchgate.net/profile/Jan_Michael_Becker
GoogleScholar: http://scholar.google.de/citations?user ... AAAJ&hl=de