Statement of the Problem Although scientists agree that personality influences pain, investigations of this influence generally focus on mood, neuroticism, and anxiety (Lim, Edes, Kranz, Mendelsohn, Selwood, & Scott, 1983; Merskey, 1978). The literature contains no studies on the relationship between personality type, coping style, and acute pain. Health care personnel, although aware of individual differences among patients, generally are not taught to take these differences into consideration when planning care. Clinicians and investigators who design programs for postoperative pain management generally do not consider personality, type, or coping style as a significant factor when individualizing a program. Significance of the Study Because a "number of postoperative dysfunctions are related directly or indirectly to postoperative pain" (Benedetti, Bonica, & Bellucci, 1984, p. 381), effective treatment of pain is an important issue in the recovery of the patient and the prevention of these dysfunctions. The treatment of postoperative pain includes appropriate analgesia and psychological intervention. "The incidence, severity, and duration of pain and suffering during the postoperative period can be decreased by proper preoperative and postoperative psychologic care" (p. 388). In recent years researchers have given much attention to pain response. However, certain questions have not been answered. One question relates to the role of personality type and coping style in pain response (Table 1-2). Research indicates that certain types of