Factor Structure and Reliability of the Posttraumatic Cognitions Inventory in Korean Female Victims of Sexual Violence

Post-Traumatic Cognitions Inventory (PTCI): psychometric properties in clients with serious mental illness and co-occurring PTSD

BACKGROUND

People with post-traumatic stress disorder (PTSD) exhibit negative cognitions, predictive of PTSD severity. The Post-Traumatic Cognitions Inventory (PTCI) is a widely used instrument measuring trauma-related cognitions and beliefs with three subscales: negative thoughts of self (SELF), negative cognitions about the world (WORLD), and self-blame (BLAME).

AIMS

The current study attempted to validate the use of the PTCI in people with serious mental illness (SMI), who have greater exposure to trauma and elevated rates of PTSD, using confirmatory factor analysis (CFA) and examining convergent and divergent correlations with relevant constructs.

METHOD

Participants were 432 individuals with SMI and co-occurring PTSD diagnosis based on the Clinician Administered PTSD Scale, who completed PTCI and other clinical ratings.

RESULTS

CFAs provided adequate support for Foa's three-factor model (SELF, WORLD, BLAME), and adequate support for Sexton's four-factor model that also included a COPE subscale. Both models achieved measurement invariance at configural, metric and scalar levels for three diagnostic groups: schizophrenia, bipolar and major depression, as well as for ethnicity (White vs Black), and gender (male vs female). Validity of both models was supported by significant correlations between PTCI subscales, and self-reported and clinician assessed PTSD symptoms and associated symptoms.

CONCLUSIONS

Findings provide support for the psychometric properties of the PTCI and the conceptualization of Sexton's four-factor and Foa's three-factor models of PTCI among individuals diagnosed with SMI (Foa et al., ).

Translation, validation and exploration of the factor structure in the French version of the Posttraumatic Cognitions Inventory (PTCI)

OBJECTIVES

In order to validate a French version of the PTCI, this study investigates two objectives using two French speaking samples: (1) test 10 factor structures identified in prior studies, and (2) assess the other psychometric properties of the best fitting factor structure.

METHOD

The PTCI was translated in French using a reverse translation method and administered to 202 university students and 114 aid workers. Suitability indexes of the appropriate factor structures previously identified in prior studies were examined. Internal consistency, correlations between subscales and convergent, divergent and discriminant validities in the most appropriate structure were evaluated.

RESULTS

Results support that only Wells et al.'s short 9-item version of the PTCI and three factors shows excellent suitability indexes. This version also outlines an excellent internal consistency and solid convergent, divergent, and discriminant validities.

CONCLUSIONS

This study confirms the empirical validity, fidelity, and utility of Wells et al.'s short version of the PTCI. This is the first PTCI French validation, which is a major advantage when it comes to assess posttraumatic cognitions in French trauma victims.

Assault-related Factors and Trauma-related Cognitions Associated with Post-traumatic Stress Symptoms in High-distress and Low-distress Korean Female Victims of Sexual Assault

BACKGROUND

Information about the factors involved in the progress of both high distressed and low distressed victims in the early days after a sexual assault are needed to provide effective intervention for victims of sexual assault. In this study, we examined the relationship among posttraumatic stress disorder (PTSD) symptoms, assault-related factors and trauma-related cognitions in Korean female victims of sexual assault.

METHODS

For this study, we retrospectively investigated the records of 94 female victims from the Sunflower Center for Women and Children Victims of Violence at the Ajou University Hospital in Korea. Demographic characteristics and the features of the sexual assault, post-traumatic stress symptoms, and trauma-related cognition were obtained from data recorded at the initial assessment. One month after the initial assessment, victims were contacted by telephone and their PTSD symptom severity was re-evaluated. The sample of 94 participants were divided into two groups depending on the PTSD symptom scale scores at initial assessment: High-distress group and Low-distress group.

RESULTS

Repeated-measured analyses of variance revealed that the high-distress group showed a decrease in PTSD symptom severity over the month, while the low-distress group did not show significant change of PTSD symptom severity. In correlation analysis, negative thoughts and beliefs about the assault were strongly correlated with PTSD symptom severity one month later in both the low-distress and high-distress groups.

CONCLUSION

Our results suggest that trauma-related cognitions seem to play an important role in the maintenance of PTSD both of high-distress and low-distress groups, and that effective intervention will need to address these cognitive factors.

Validation of the Child Post-Traumatic Cognitions Inventory in Korean survivors of sexual violence

BACKGROUND

Dysfunctional cognitions related to trauma is an important factor in the development and maintenance of post-traumatic stress disorder symptoms in children and adolescents. The Child Post-traumatic Cognitions Inventory (CPTCI) assesses such cognitions about trauma. We investigated the psychometric properties of the Korean version of CPTCI and its short form by surveying child and adolescent survivors of sexual violence.

METHODS

Children and adolescents aged 7-16 years (N = 237, M_age = 12.6, SD = 2.3, 222 [93.7%] were female) who were exposed to sexual violence were included in this survey. We assessed the factor structure, internal consistency, and validity of the CPTCI and its short form through data analysis.

RESULTS

Confirmatory factor analysis results supported the two-factor model presented in the original study. The total scale, its subscales, and the short form had good internal consistency (Cronbach's α = .96 for total scale and .91-.95 for the other scales). The CPTCI showed high correlations with scales measuring post-traumatic stress symptoms (r = .77-.80), anxiety (r = .69-.71), and depression (r = .74-.77); the correlation with post-traumatic stress symptoms was the highest. The differences in CPTCI scores per post-traumatic stress symptom levels were significant (all p < .001) Sex differences in CPTCI scores were not significant (p > .05 for all comparisons); however, the scores exhibited differences per age group (all p < .001).

CONCLUSIONS

The results indicate that the Korean version of the CPTCI is a valid and reliable scale; therefore, it may be a valuable tool for assessing maladaptive cognitions related to trauma in research and clinical settings.