The model finally shows a high explanatory power of 48.3% (see Fig. 2) above the minimum level recommended by Falk and Miller (1992) which is 10%. The Stone-Geisser Q2 has also been calculated to evaluate the model's predictive capacity (Gefen et al., 2011) and it is concluded that the model has predictive relevance as all the Q2 values of the table are greater than 0 (Roldán and Sánchez-Franco, 2012).