Correlation of [O III] outflow velocity with other emission‐line and AGN properties (first panel to seventh panel). Objects above the dashed line are blue outliers. NLS1 galaxies are represented by filled circles, and BLS1 galaxies by open circles. The correlation coefficient ﹩r_{s}﹩ shown in each panel was calculated among the NLS1 population only, or for the whole sample (marked as "all" in the graphs). If the BLS1 galaxies are included, several correlations emerge, and the blue outliers amplify these trends. R5007 corresponds to the ratio of total [O III] over total Hβ emission, R4570 to the ratio of Fe II λ4570 over total Hβ emission. The last panel shows the galaxies’ deviation ﹩\Delta \sigma ﹩ (see text for definition) from the ﹩M_{\mathrm{BH}\,}- \sigma _{*}﹩ relation, in dependence of Eddington ratio. An apparent correlation does no longer exist once the blue outliers (marked with extra open squares) are removed.