Top: mean q_ia (in blue, left) and q_cc (in red, right) or Type Ia and core-collapse “yields” as a function of T_cond for each input refractory element, [X/H], in the KPM. Bottom: f_cc computed from the q-values using Equation (3), as a function of T_cond. We find a strong positive trend between f_cc and T_cond consistent with underlying nucleosynthetic yield patterns shown in the top panel. [Mg/H] appears as an outlier but is fixed at f_cc = 1 in the KPM. Data are not separated by survey here for visual clarity.