minimum and maximum appropriate number for the samples in estimation of bootstrapping

Questions about the implementation and application of the PLS-SEM method, that are not related to the usage of the SmartPLS software.
Post Reply
aam
PLS Junior User
Posts: 6
Joined: Fri Aug 24, 2018 11:51 am
Real name and title: Ali Alitaleb

minimum and maximum appropriate number for the samples in estimation of bootstrapping

Post by aam »

What is the minimum and maximum appropriate number for the samples in estimation of bootstrapping when we want to conduct confirmatory factor analysis using smart PLS2?
jmbecker
SmartPLS Developer
Posts: 1282
Joined: Tue Mar 28, 2006 11:09 am
Real name and title: Dr. Jan-Michael Becker

Re: minimum and maximum appropriate number for the samples in estimation of bootstrapping

Post by jmbecker »

For the bootstrap samples the usual recommendation is the use at least 500 (for an initial screening, because it usually gives already quite good results) and 5,000 for the final model. Generally, the more the better (i.e., the more precise are your estimates of the standard error and the confidence intervals).
Personally, I would say that beyond 5,000 there is not much to gain, but you could also use 10,000 if your system memory allows that.
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
aam
PLS Junior User
Posts: 6
Joined: Fri Aug 24, 2018 11:51 am
Real name and title: Ali Alitaleb

Re: minimum and maximum appropriate number for the samples in estimation of bootstrapping

Post by aam »

thanks for your reply
I used SmartPls2 and its default value was 200 samples. I did not change it. Is my confirmatory factor analysis wrong?
jmbecker
SmartPLS Developer
Posts: 1282
Joined: Tue Mar 28, 2006 11:09 am
Real name and title: Dr. Jan-Michael Becker

Re: minimum and maximum appropriate number for the samples in estimation of bootstrapping

Post by jmbecker »

It is not wrong, but it might not be very precise. It is especially a problem for effects that are on the edge of being significant or not. If you are able to re-run it, I would go with a larger number.
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
aam
PLS Junior User
Posts: 6
Joined: Fri Aug 24, 2018 11:51 am
Real name and title: Ali Alitaleb

Re: minimum and maximum appropriate number for the samples in estimation of bootstrapping

Post by aam »

Thank you doctor.
Post Reply