P-values of reliability and AVE

Questions about the implementation and application of the PLS-SEM method, that are not related to the usage of the SmartPLS software.
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BenLien
PLS Junior User
Posts: 4
Joined: Tue Apr 25, 2017 9:06 am
Real name and title: Phd. student, Benjamin Liengaard

P-values of reliability and AVE

Post by BenLien »

When bootstrapping, SmartPLS gives p-values and confidence intervals for reliabilities and average variance extracted (AVE). What is the null hypothesis and alternative hypothesis underlying these p-values?
Comparing the confidence intervals with the p-values suggest that the null hypothesis is AVE=0 and e.g composite reliability = 0.
Given the recommended cutoffs (e.g. AVE>0.5 and composite reliability >0.7), I think it would be appropriate to report p-values based on the null hypothesis' AVE = 0.5 and composite reliability = 0.7 (both with one-sided alternative hypothesis that the values are greater than the recommended cut-off).
jmbecker
SmartPLS Developer
Posts: 1284
Joined: Tue Mar 28, 2006 11:09 am
Real name and title: Dr. Jan-Michael Becker

Re: P-values of reliability and AVE

Post by jmbecker »

The p-values are based on a true null, which might not be very useful. It is only the standard option in bootstrapping. However,
1) I would not use typical p-value / t-value test here because the distribution of the reliabilities is unknown, hence I would use bootstrap confidence intervals.
2) confidence intervals can be easily compared against a 0.5 (AVE) or 0.7 (composite reliability).
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
BenLien
PLS Junior User
Posts: 4
Joined: Tue Apr 25, 2017 9:06 am
Real name and title: Phd. student, Benjamin Liengaard

Re: P-values of reliability and AVE

Post by BenLien »

Thanks a lot for the answer.
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