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In the decreasing intrinsic redshift (DIR) model galaxies are assumed to beborn as compact objects that have been ejected with large intrinsic redshiftcomponents, z_(i), out of the nuclei of mature AGN galaxies. As young AGN(quasars) they are initially several magnitudes sub-luminous to mature galaxiesbut their luminosity gradually increases over 10^8 yrs, as z_(i) decreases andthey evolve into mature AGN (Seyferts and radio galaxies). Evidence presentedhere that low- and intermediate-redshift AGN are unquestionably sub-luminous toradio galaxies is then strong support for this model and makes it likely thatthe high-redshift AGN (quasars) are also sub-luminous, having simply beenpushed above the radio galaxies on a logz-m_(v) plot by the presence of a largeintrinsic component in their redshifts. An increase in luminosity below z =0.06 is also seen. It is associated in the DIR model with an increase inluminosity as the sources mature but, if real, is difficult to interpret in thecosmological redshift (CR) model since at this low redshift it is unlikely tobe associated with a higher star formation rate or an increase in the materialused to build galaxies. Whether it might be possible in the CR model to explainthese results by selection effects is also examined.

Further Evidence that the Redshifts of AGN Galaxies May Contain Intrinsic Components