Search found 21 matches

by davidal
Fri Nov 05, 2010 9:55 am
Forum: SmartPLS 2 - FAQ
Topic: moderation
Replies: 8
Views: 5507

Ok great.

And what about the non significant path that becomes significant ?
by davidal
Fri Nov 05, 2010 9:37 am
Forum: SmartPLS 2 - FAQ
Topic: moderation
Replies: 8
Views: 5507

Christian, Let me explain in more details. In my model I have 3 IV (A, B, and C) and 1 DV (D) and 1 moderator (M) Here are the results of the bootstrap simulation Main effects : A--> D = 0,24 B--> D = 0,19 C--> D = 0,06 (ns) (M--> D = -0,37) When I include the interaction term : A--> D = 0,36 B--> D...
by davidal
Fri Nov 05, 2010 9:03 am
Forum: SmartPLS 2 - FAQ
Topic: moderation
Replies: 8
Views: 5507

moderation

Hello ! I hav a question regarding moderation effect. I am testing a model with one one IV (A) and one DV (B) and want to test the moderating effect of M on this path. When I test the main effect model (A --> B) the path is non significant. But, when I had the moderator (interaction term) the path A...
by davidal
Thu Jun 17, 2010 11:56 am
Forum: Method and application
Topic: Relative Gof
Replies: 2
Views: 3004

Hi bibo, for the relative gof you can see e.g. : Vincenzo Esposito Vinzi, Laura Trinchera, and Silvano Amato (2010) PLS Path Modeling: From Foundations to Recent Developments and Open Issues for Model Assessment and Improvement (PLS handbook). This paper is available online (relative gof is presente...
by davidal
Thu Jun 03, 2010 10:00 am
Forum: Method and application
Topic: Relative Gof
Replies: 2
Views: 3004

Relative Gof

Dear PLS users, I was wondering how to estimate a relative Gof with SmartPLS (if possible). The relative GOF is computed by dividing the absolute GOF value by its maximum value achievable for the analysed set. In practical terms, how is estimated the maximum Gof value for a given set ? Thanks for an...
by davidal
Wed May 19, 2010 2:31 pm
Forum: Method and application
Topic: Fimix entropy index
Replies: 0
Views: 1535

Fimix entropy index

Dear members, I am actually trying to apply fimix segmentation to a path model integrating 1 criterion and two predictors (1 predictor is a second-order variable) and get suprizing results. The first step is to estimate the number of segments. To this end, I focus on the entropy index (EN). But each...
by davidal
Thu Jan 14, 2010 9:04 am
Forum: SmartPLS 2 - FAQ
Topic: effect size
Replies: 15
Views: 15603

Dear Bido, Thank you for your answer. But I'm not sure we're talking about the same thing. What I want to estimate is the f2 for each effect in the model in order to gauge the effect of each predictor in the model. To that purpose, Henseler et al. 2008 suggested to use this formula: f2 = (R2incl-R2e...
by davidal
Wed Jan 13, 2010 4:21 pm
Forum: SmartPLS 2 - FAQ
Topic: effect size
Replies: 15
Views: 15603

effect size

Dear all, I have a beginner question concerninr effect size (f2). Based on the formula f2 is computed as follows : (R2included - R2 excluded)/(1 - R2 included) Imagine I have a paht model with A-->C-->D B-->C-->D In this model, it is possible to apply the formula for C: A is excluded and the new R2 ...
by davidal
Thu Jan 07, 2010 2:29 pm
Forum: SmartPLS 2 - FAQ
Topic: AVE and communality
Replies: 1
Views: 5390

AVE and communality

Dear SmartPLSers,

I have a stupid question but I can't find the solution on my own. Are AVE and communality coefficent equal? If not, what is the difference between them?

Sorry for bothering you with such beginers' questions and Thank you for your help.

David
by davidal
Wed Apr 15, 2009 1:49 pm
Forum: Method and application
Topic: Independent variables status
Replies: 0
Views: 1627

Independent variables status

Hi,

does someone know what the expession "independent variables status" stands for? What does it refers to?

Thanks for answers.

Regrds

David
by davidal
Mon Oct 20, 2008 3:57 pm
Forum: Method and application
Topic: R2 comparison
Replies: 4
Views: 3773

Dear Bido, I thank you very much for your answer. In fact, you correctly undersood what I meant by "saturated model". It's a model in which all exogenous variables are related to each endogenous ones. As you recommend, I have computed an adujsted R2 for each model but, naturally, tey are d...
by davidal
Tue Oct 14, 2008 4:48 pm
Forum: Method and application
Topic: R2 comparison
Replies: 4
Views: 3773

R2 comparison

Hi everyone, I'm actually evaluating the predictive power of my model by comparing it to a saturated one. Consequently, I have 2 R2 (1 for the saturated model, and 1 for the structural model) and I would like to know if there is a mean to statistically compare these two indices. Is it possible to te...
by davidal
Sat Jul 26, 2008 9:40 am
Forum: Method and application
Topic: contribution to R2
Replies: 0
Views: 1641

contribution to R2

Hi, I have a couple of questions concerning the calculation of the contribution of explanatory variables to the prediction of a dependent one : For Tenenhaus et al. (2005), this contribution can be estimated by the following formula : sum of Beta (path coef) * correlation but this make sense only wh...
by davidal
Fri Jul 25, 2008 12:12 pm
Forum: Method and application
Topic: adjusted R2
Replies: 7
Views: 5741

Thank you for all.

I think I'll won't bothe you with my (stupid) questions any more.

Regards.

David
by davidal
Fri Jul 25, 2008 9:57 am
Forum: Method and application
Topic: adjusted R2
Replies: 7
Views: 5741

A last question :
For an adjusted R2, k = number of dependent variable. Does it means latent or manifest ?