Abstract
The purposes of the present study were to verify the efficacy of cognitive-behavioral therapy (CBT) for treating posttraumatic stress disorder (PTSD) through a meta-analysis of data from recent research, and to deal with issues related to research on posttraumatic stress disorder. The results of the meta-analysis verified the effectiveness of cognitive-behavioral therapy for posttraumatic stress disorder and suggested further potential applications. Tasks set for the future include: (a) examination of intervention methods in relation to patients' symptom profiles and condition. (b) verification of the efficacy of cognitive-behavioral therapy when used in combination with medical treatment. (c) identification and specification of treatment techniqus and factors that influence therapeutic gain, examination of the techniques' efficiency, and identification of appropriate intervention methods. and (d) examination of factors other than treatment techniques that are known to be effective.