Distribution of the observed infrared‐to‐Hα luminosity ratios as a function of spectral types of the ULIGs in the 1 Jy sample (solid lines) and the BGS LIGs of Veilleux et al. (1995; dashed lines). Seyfert 1 galaxies present smaller ratios than any other classes objects; LINERs present slightly larger ratios than H II and Seyfert 2 galaxies.