Psychometrics of the Child PTSD Symptom Scale for DSM-5 for Trauma-Exposed Children and Adolescents.

This study evaluated psychometric properties of interview, self-report, and screening versions of the Child PTSD Symptom Scale for DSM-5 (CPSS-5), a measure of posttraumatic stress disorder (PTSD) for traumatized youth based on DSM-5 criteria. Participants were 64 children and adolescents (51.6% female, 45.3% African American/Black) between 8 and 18 years of age (M = 14.1, SD = 2.5) who had experienced a DSM-5 Criterion A trauma. Participants completed test-retest procedures for the self-report and interviewer versions of the CPSS-5 in 2 visits that were up to 2 weeks apart. Analyses revealed excellent internal consistencies, good to excellent test-retest reliability, and good convergent validity and discriminant validity for interview and self-report versions of the scale. Receiver operating characteristic analysis yielded a cutoff score of 31 on the CPSS-5 self-report version for identifying probable PTSD diagnosis. Six most frequently endorsed items by those with a possible PTSD diagnosis on the CPSS-5 were identified to constitute a screen version of the CPSS-5, showing good internal consistency and test-retest reliability. The three versions of the CPSS-5 scales are valid and reliable measures of DSM-5 PTSD symptomatology in traumatized youth.

Therapeutic Alliance during Prolonged Exposure Versus Client-Centered Therapy for Adolescent Posttraumatic Stress Disorder.

OBJECTIVES: To examine the relationship between improvements in adolescent ratings of therapeutic alliance and reductions in posttraumatic stress disorder (PTSD) severity over time among adolescent girls during prolonged exposure therapy for adolescents (PE-A) versus client-centered therapy (CCT), as well as to examine differences in changes in alliance between treatment groups. METHOD: A total of 61 adolescent girls (aged 13-18 years) with sexual assault-related PTSD received PE-A or CCT in a randomized controlled trial. Participants rated alliance at session 3, midtreatment, and posttreatment. RESULTS: The rate of improvement in adolescent-rated alliance was greater in PE-A than CCT over the course of treatment. In addition, improvement in adolescent-rated alliance significantly contributed to improvements in PTSD (regardless of treatment condition), but not vice versa. CONCLUSIONS: Contrary to beliefs that trauma-focused treatments fail to establish strong therapeutic alliance in sexually abused adolescents, improvement in adolescent ratings of alliance were greater in PE-A compared to CCT, and improvements in adolescent-rated alliance were significantly associated with better treatment outcome across both types of treatments.

Prolonged exposure vs supportive counseling for sexual abuse-related PTSD in adolescent girls: a randomized clinical trial.

IMPORTANCE: Evidence-based treatments for posttraumatic stress disorder (PTSD) have not been established for adolescents despite high prevalence of PTSD in this population. OBJECTIVE: To examine the effects of counselor-delivered prolonged exposure therapy compared with supportive counseling for adolescents with PTSD. DESIGN, SETTING, AND PARTICIPANTS: A single-blind, randomized clinical trial of 61 adolescent girls with PTSD using a permuted block design. Counselors previously naive to prolonged exposure therapy provided the treatments in a community mental health clinic. Data collection lasted from February 2006 through March 2012. INTERVENTIONS: Participants received fourteen 60- to 90-minute sessions of prolonged exposure therapy (n = 31) or supportive counseling (n = 30). MAIN OUTCOMES AND MEASURES: All outcomes were assessed before treatment, at mid-treatment, and after treatment and at 3-, 6-, and 12-month follow-up. The primary outcome, PTSD symptom severity, was assessed by the Child PTSD Symptom Scale-Interview (range, 0-51; higher scores indicate greater severity). Secondary outcomes were presence or absence of PTSD diagnosis assessed by the DSM-IV Schedule for Affective Disorders and Schizophrenia for School-Age Children and functioning assessed by the Children's Global Assessment Scale (range, 1-100; higher scores indicate better functioning). Additional secondary measures, PTSD severity assessed by the Child PTSD Symptom Scale-Self-Report (range, 0-51; higher scores indicate greater severity) and depression severity assessed by the Children's Depression Inventory (range, 0-54; higher scores indicate greater severity), were also assessed weekly during treatment. RESULTS: Data were analyzed as intent to treat. During treatment, participants receiving prolonged exposure demonstrated greater improvement on the PTSD symptom severity scale (difference between treatments in improvement, 7.5; 95% CI, 2.5-12.5; P < .001) and on all secondary outcomes (loss of PTSD diagnosis: difference, 29.3%, 95% CI, 20.2%-41.2%; P = .01; self-reported PTSD severity: difference, 6.2; 95% CI, 1.2-11.2; P = .02; depression: difference, 4.9; 95% CI, 1.6-8.2; P = .008; global functioning: difference, 10.1; 95% CI, 3.4-16.8; P = .008). These treatment differences were maintained through the 12-month follow-up: for interviewer-assessed PTSD (difference, 6.0; 95% CI, 1.6-10.4; P = .02), loss of PTSD diagnosis (difference, 31.1; 95% CI, 14.7-34.8; P = .01), self-reported PTSD (difference, 9.3; 95% CI, 1.2-16.5; P = .02), depression (difference, 7.2; 95% CI, 1.4-13.0; P = .02), and global functioning (difference, 11.2; 95% CI, 4.5-17.9; P = .01). CONCLUSION AND RELEVANCE: Adolescents girls with sexual abuse-related PTSD experienced greater benefit from prolonged exposure therapy than from supportive counseling even when delivered by counselors who typically provide supportive counseling. TRIAL REGISTRATION: clinicaltrials.gov Identifier: NCT00417300.

The Child PTSD Symptom Scale: psychometric properties in female adolescent sexual assault survivors.

Traumatic experiences are common among youths and can lead to posttraumatic stress disorder (PTSD). In order to identify traumatized children who need PTSD treatment, instruments that can accurately and efficiently evaluate pediatric PTSD are needed. One such measure is the Child PTSD Symptom Scale (CPSS), which has been found to be a reliable and valid measure of PTSD symptom severity in school-age children exposed to natural disasters (Foa, Johnson, Feeny, & Treadwell, 2001). However, the psychometric properties of the CPSS are not known in youths who have experienced other types of trauma. The current study aims to fill this gap by examining the psychometric properties of the interview (CPSS-I) and self-report (CPSS-SR) administrations of the CPSS in a sample of 91 female youths with sexual abuse-related PTSD, a population that is targeted in many treatment studies. Scores on both the CPSS-I and CPSS-SR demonstrated good to excellent internal consistency. One-week test-retest reliability assessed for CPSS-SR scores was excellent (r=.86); interrater reliability of CPSS-I scores was also excellent (r=.87). Symptom-based diagnostic agreement between the CPSS-SR and CPSS-I was excellent at 85.5%; scores on both the CPSS-SR and CPSS-I also demonstrated good convergent validity (74.5-76.5% agreement) with the PTSD module of The Schedule of Affective Disorders and Schizophrenia for School-Age Children--Revised for DSM--IV (K-SADS; Kaufman, Birmaher, Brent, & Rao, 1997). The strong psychometric properties of the CPSS render it a valuable instrument for PTSD screening as well as for assessing symptom severity.