“…According to operant and cognitive-behavioral models of chronic pain (e.g., Fordyce, 1976;Kerns et al, 1991;Turk et al, 1987), caregivers (including parents) provide discriminative cues and selective reinforcement for behavioral expressions of pain (e.g., complaints of pain, guarded movement). Parental attention contingent on pain, the avoidance of nonpreferred activities (Philips, 1987), and parental modeling influences (Whitehead, Busch, Heller, & Costa, 1986) may affect the child's pain. Specifically, some caregiving practices (e.g., sympathy and attention, expression of concerns, physical nurturance, external help seeking, or emotional reactions of anger or criticism) may reinforce pain behaviors (Fordyce, 1976;Payne & Norfleet, 1986).…”