Testing the stability of the resolved scaling relations (W_Hα − V_c, left; W_Hα − β, right) through a cross-validation technique. The red lines indicate the spaxels of 60 randomly selected galaxies from the original data set (where 10 galaxies from each of the 6 quenching stages are chosen) for 100 single realisations. The inner and the outer contours represent the relationships constructed with 50% and 95% of the spaxel distribution, respectively, of the full sample of 215 galaxies (black contours) and each subsample of 60 galaxies (red contours). Both relationships overall show stability regarding the studied sample across quenching stage.