Rest-frame interband lag τ _gz as a function of AGN continuum luminosity at 5100 Å (left), BH mass (middle), and the product L × M _BH (right). The g –z lags of eight local AGN are from literature sources as described in the text. The AGN continuum luminosities and black hole masses for the comparison sample are from Bentz & Katz (2015). The quantity L ₅₁₀₀ refers to λ L _λ at 5100 Å. For NGC 4395, the horizontal error bar on M _BH denotes the range spanning 1.7 × 10⁴ to 4 × 10⁵ M _⊙ corresponding to the mass measurements from Cho et al. (2021) and den Brok et al. (2015). The black solid and dotted lines in each panel denote the power-law model fit and its 1σ uncertainty range.