Search found 39 matches
- Mon Nov 20, 2006 10:27 pm
- Forum: SmartPLS 2 - FAQ
- Topic: Bootstrapping Problem Calculating loadings
- Replies: 2
- Views: 2796
Re: Bootstrapping Problem Calculating loadings
This problem should be diminished if you use a correction option in the bootstrap settings (e.g., construct level changes).
- Wed Mar 08, 2006 2:45 pm
- Forum: Method and application
- Topic: Multi-group comparisons with PLS
- Replies: 59
- Views: 66517
Chow
Hi Stefan,
I think what you are looking for is the so-called "Chow test".
You can find information on that e.g. in Gujarati (2003: Basic Econometrics).
I think there was also a paper by Bass and Wittink (JMR, 1975) on the pooling issue.
Regards,
Jörg
I think what you are looking for is the so-called "Chow test".
You can find information on that e.g. in Gujarati (2003: Basic Econometrics).
I think there was also a paper by Bass and Wittink (JMR, 1975) on the pooling issue.
Regards,
Jörg
- Mon Mar 06, 2006 2:12 pm
- Forum: Method and application
- Topic: Multi-group comparisons with PLS
- Replies: 59
- Views: 66517
Group comparisons
Hi Stefan, In principle, your work around is okay. However, I would suggest you another approach: I recommend you to have a look at the literature on modeling interaction effects in linear regressions, mainly the small green booklet by Jaccard and Turrisi. They say basically that you can treatt the ...
- Tue Jan 03, 2006 2:30 pm
- Forum: Method and application
- Topic: Modeling moderating effects with formative indicators
- Replies: 2
- Views: 3959
Re: Modeling moderating effects with formative indicators
It says, that you should use PLS to create underlying construct scores for the predictor and moderator variables and then take those single composite scores to create a single interaction term. Does that mean you just export the latent variable scores of predictor LV and moderator LV to Excel, mult...
- Mon Dec 12, 2005 3:05 pm
- Forum: Method and application
- Topic: Formative constructs with problematic indicator weights
- Replies: 20
- Views: 21131
- Sat Dec 10, 2005 8:36 pm
- Forum: Method and application
- Topic: Second order factor
- Replies: 26
- Views: 24936
- Thu Dec 08, 2005 3:09 pm
- Forum: Method and application
- Topic: CFA and Interpretation Matters
- Replies: 7
- Views: 6367
Correlation among indicators is by no means a criterium for evaluating formative measurement models. CFA does not make any sense, because its output does not imply anything, i.e. it does not tell you anything about the reliability and validity of your formative measurement. You may want to check the...
- Sat Dec 03, 2005 11:27 am
- Forum: Method and application
- Topic: Formative constructs with problematic indicator weights
- Replies: 20
- Views: 21131
- Fri Dec 02, 2005 10:50 am
- Forum: Method and application
- Topic: Formative constructs with problematic indicator weights
- Replies: 20
- Views: 21131
If your construct is reflective, you should use Mode A. If your construct is formative, you can either use Mode A or Mode B. Mode B is fine if you have no multicollinearity and/or if you to use a formative independent variable to maximize the explanation of the dependent variable. If you have multic...
- Thu Dec 01, 2005 1:09 pm
- Forum: Method and application
- Topic: Formative constructs with problematic indicator weights
- Replies: 20
- Views: 21131
You get rid of them if you use Mode PLS (only available with SPADPLS so far) or you restrict yourself in just looking at the first component of the PLS regresion - which actually is the same as mode A. If you use Mode A and report the weights instead of the loadings you are at least on step nearer t...
- Wed Nov 30, 2005 6:41 pm
- Forum: Method and application
- Topic: Formative constructs with problematic indicator weights
- Replies: 20
- Views: 21131
Formative versus reflective
John is right when he says that the direction of the arrows in PLS is not necessarily an indication of whether the measurement model is formative or reflective. Actually, Chin, Ringle and all the other developpers of GUIs for PLS Path Modeling just use the direction of the arrows to differentiate be...
- Mon Nov 28, 2005 8:19 am
- Forum: Method and application
- Topic: R square changes and changes in the model
- Replies: 2
- Views: 4248
Decreasing R-square when adding independent latent variables
I do not think that multicollinearity may be the reason, because although multicollinearity may give you strange path coefficients, it does not (negatively) influence the prediction of the latent variables. If you draw connections between the independent variables, the latent variable scores of the ...
- Tue Nov 22, 2005 10:08 pm
- Forum: Method and application
- Topic: Constructs and "objective" measures in PLS
- Replies: 4
- Views: 5828
GIFI
Michel Tenenhaus (from HEC) presented a model similar to yours on the PLS'03 conference in Lisbon within a PLS tutorial. It was based on GIFI data as far as I can remember. He estimated political stability of a country. He used objective, and partially dichotomous variables like e.g. "whether a...
- Tue Nov 08, 2005 8:52 am
- Forum: Literature
- Topic: Article
- Replies: 306
- Views: 1588349
Moderating effects
author = Chin, Wynne W. and Marcolin, Barbara L. and Newsted, Peter R. title = A Partial Least Squares Latent Variable Modeling Approach for Measuring Interaction Effects. Results from a Monte Carlo Simulation Study and an Electronic-Mail Emotion / Adopion Study year = 2003 journal = Information Sys...
- Tue Nov 08, 2005 8:49 am
- Forum: Method and application
- Topic: PLS Latent variables interactions
- Replies: 3
- Views: 5970