total indirect effects or total effect in (multiple) mediation

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Ingrid Snijders
PLS User
Posts: 12
Joined: Sat Jul 02, 2016 2:25 pm
Real name and title: drs Ingrid Snijders

total indirect effects or total effect in (multiple) mediation

Post by Ingrid Snijders » Mon Feb 11, 2019 4:23 pm

Dear all,

When doing a (multiple) mediation analysis, I got confused whether I should use the smartpls-output value of the total indirect effect or the total effect? In the model the values for the c-path (from IV to DV) differ; one is significant (total indirect effect) and the other one is not (total effect), which means that in the case of path a x b (IV-M-DV) is significant, it concerns either a partial mediation if path c (IV-DV) is significant, or full mediation if path c is not significant.

Very much appreciated if anyone would be willing to reply asap. Thank you very much!

Ingrid

jmbecker
SmartPLS Developer
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Joined: Tue Mar 28, 2006 11:09 am
Real name and title: Dr. Jan-Michael Becker

Re: total indirect effects or total effect in (multiple) mediation

Post by jmbecker » Wed Feb 13, 2019 12:36 pm

It depends on what you want to assess, but likely you want to look at the indirect effect (specific or total). Establishing an indirect effect validates your mediation hypothesis, i.e., that there is an intervening variable M that explains part of whole of the effect of A on B.
The total effect is the effect of A on B without any mediator. The total indirect effect is the effect though all mediators simultaneously. The specific indirect effect is the effect through one specific mediator.

See also https://www.smartpls.com/documentation/ ... /mediation
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

Ingrid Snijders
PLS User
Posts: 12
Joined: Sat Jul 02, 2016 2:25 pm
Real name and title: drs Ingrid Snijders

Re: total indirect effects or total effect in (multiple) mediation

Post by Ingrid Snijders » Fri Feb 15, 2019 7:28 am

thank you very much!

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