Dear Antonio, 

You can get the predictive validity or Stone Geisser Indicator (Q2) to evaluates of how much the model approaches what was expected of it. You can obtained this result by using Blindfolding procedure on the SmartPLS. To add your knowledge, maybe you can read this article: structural equation modeling with the smartpls (Ringle, Silva, & Bido, 2014)

I agree with Wan Mohamad that blindfolding procedure is similar to predictive validity but I am not sure if it is the one and the same thing. I did the blindfolding to get the Q^2 and q^2 values but I got the same review comment as Leal-Rodriguez did. 

Leal-Rodriguez! Could you please post your comment on Linkedin SmartPLS group or you allow me to put it there with hope to get comments from Prof. Ringle, Hanseler etc. 

Thanks Murad, you're right, I am not sure either if the blindfolding method assesses the same issue as predictive validity. I have just posted the question on the Linkedin SmartPLS group, following your suggestion.

Regards,

Following link should help you;

http://forum.smartpls.com/viewtopic.php?f=5&t=3500