Log of the star-formation rates (SFR) in M_⊙ yr^-1 derived using the the Hα luminosity (SFR_Hα), without reddening correction, plotted against the log of the SFR obtained using the IR luminosities. We used the results of García-Marín et al. (2009a) for the figure from their sample of ULIRGs. The circles correspond to the objects in our sample, while stars correspond to objects in García-Marín et al. (2009a) sample. Those objects classified as Sy galaxies are indicated in the figure with open symbols.