CLAS+ changing-look candidates versus the quiescent quasar control in Rubin DP2. (a), (b) Peak-to-peak scienceFlux amplitude in magnitudes for objects with ≥5 epochs in r (a) or i (b); boxes span the quartiles with the median marked, points are individual objects, n per group above each box. No state’s median differs significantly from the control in either band. The r-band CLAS+ distributions are broader; only the intermediate state’s spread survives multiple-comparison correction, concentrated in a high-amplitude tail. (c) Median ∣Δmag∣ between within-light-curve epoch pairs versus observed-frame time lag, one curve per state. No lag bin differs significantly from the control; the long-lag rise, present in the control too, reflects DP2 cross-campaign cadence rather than intrinsic growth.