The validation of a self-report measure of posttraumatic stress disorder: The posttraumatic diagnostic scale.
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Foa, E. B., Cashman, L., Jaycox, L., & Perry, K. (1997). The validation of a self-report measure of posttraumatic stress disorder: The posttraumatic diagnostic scale. Psychological Assessment, 9(4), 445-451.
Cronbach's alpha was .92 for Total Symptom Severity, .78 for Re-experiencing, .84 for Avoidance, and .84 for Arousal. Test-retest reliability was .83 for Total Symptom Severity, .77 for Re-experiencing, .81 for Avoidance, and .85 for Arousal.
Convergent validity
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Foa, E. B., Cashman, L., Jaycox, L., & Perry, K. (1997). The validation of a self-report measure of posttraumatic stress disorder: The posttraumatic diagnostic scale. Psychological Assessment, 9(4), 445-451.
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