Search found 9 matches

by soumya.ray
Thu Feb 08, 2018 4:03 am
Forum: PLS Related Internet Links
Topic: Software Applications
Replies: 30
Views: 62458

Re: Software Applications

SEMinR is a new R package for building PLS structural equation models: https://github.com/sem-in-r/seminr - Easily creates interactions and complicated structural models - Handles composite and common-factor constructs in a single model (automatically applies PLSc wherever common factors are involve...
by soumya.ray
Mon Feb 02, 2009 4:50 pm
Forum: FAQ (Methodology)
Topic: negative outer weights
Replies: 3
Views: 1750

Hi Stefan, probably the problem of negative and nonsignificant weights is the multicollinearity between the MV. The interpretation of these weights will be problematic too. The suggestion of take these MV off, probably came from a regression way of thinking. Another possibility will be group the co...
by soumya.ray
Fri Sep 28, 2007 9:59 pm
Forum: FAQ (SmartPLS 2.0)
Topic: comparing path coeff's, calculating confidence intervals
Replies: 10
Views: 3865

I hadn't thought of Vivek's concern #2, so I am glad to see it addressed before anyone asked me about it. And the ANOVA suggestion is very helpful too.

Thank you both for this fruitful discussion!
by soumya.ray
Wed Sep 26, 2007 4:31 pm
Forum: FAQ (SmartPLS 2.0)
Topic: comparing path coeff's, calculating confidence intervals
Replies: 10
Views: 3865

Thanks once again for the prompt reply Vivek! Couple more questions if you would indulge: 1. Is it appropriate to compare path coefficients of two paths which originate from the same exogenous variable, but go to different endogenous variables? 2. How small/great must the difference between path be ...
by soumya.ray
Mon Sep 24, 2007 10:39 pm
Forum: FAQ (SmartPLS 2.0)
Topic: comparing path coeff's, calculating confidence intervals
Replies: 10
Views: 3865

in addition to what i suggested above, i now realize after talking to a colleague that if the above technique to compare two paths is valid, then i need to calculate the variance of both exogenous paths and use a pooled variance t-test... right?
by soumya.ray
Mon Sep 24, 2007 9:43 pm
Forum: FAQ (SmartPLS 2.0)
Topic: comparing path coeff's, calculating confidence intervals
Replies: 10
Views: 3865

comparing path coeff's, calculating confidence intervals

I am structuring a model in which I would like to hypothesize that, though two paths might both be significant, one of the paths should be significantly (in the statistical sense) greater than the other. The approach I thought of taking to prove the above, is as follows. Bootstrapping gives us t-val...
by soumya.ray
Thu Aug 30, 2007 6:05 am
Forum: Application of PLS
Topic: How do model second order constructs in PLS
Replies: 10
Views: 4828

Thank you Vivek - I just tried this and your suggestion works very well. Is this approach, representing 2nd order factors as 1st order factors with latent scores as manifest variables, a preferred solution over using the repeated measures approach? The only thing that is missing using the latent sco...
by soumya.ray
Wed Aug 29, 2007 9:37 pm
Forum: FAQ (Methodology)
Topic: Placement of moderation
Replies: 1
Views: 803

Its the same thing -- you are moderating the relationship. There is no such thing as moderating a construct. SmartPLS shows the path going to the final construct because it creates a moderation-term construct (composed of the product of the antecedent's and moderator's manifest variables) which is t...
by soumya.ray
Wed Aug 29, 2007 7:55 pm
Forum: Application of PLS
Topic: How do model second order constructs in PLS
Replies: 10
Views: 4828

I have been trying to create a model where the second order representation of a factor co-exists with its first order elements in a larger model. The reason I want this is that I would like to study the antecedents of the 1st order factors, but would like to study the consequents of the 2nd order fa...