Redshift evolution of the quiescent fractions (f_q) for field (dotted), group (dashed), and cluster (solid) galaxies. Similar to the upper left-hand panel in figure 5, the data points in the high-redshift bin for the mass bin 9.25–9.5 are removed due to the mass incompleteness. The Butcher–Oemler effect (Butcher & Oemler 1984) is clearly seen but with a mass dependence. The effect is stronger for less-massive galaxies and lesser for massive galaxies. For comparison, we also add the f_q results from Wagner et al. (2017) (cyan circles) with M_* > 10^10.1 M_⊙ in the upper right-hand panel. It is seen that our result is in agreement with that from Wagner et al. (2017). (Color online)