– 29 – Fig. 8.— Mid-IR AGN structure functions (Equation (5)) in the observed frame (top) and rest-frame (bottom). They are based on ∼ 180, 690, and 1100 z > 1 SDWFS objects with [3 . 6] < 16 mag (dots), [3 . 6] < 17 mag (triangles), and [3 . 6] < 18 mag (squares), respectively. We also show the i -band rest-frame structure function from Vanden Berk et al. (2004) in the lower panels.