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Gepubliceerd in: Research on Child and Adolescent Psychopathology 9/2022

19-04-2022

Can Developmental Trauma disorder be distinguished from posttraumatic stress disorder? A confirmatory factor Analytic Test of Four Structural Models

Auteurs: Julian D. Ford, Ph.D ORCID, Mark Shevlin, Ph.D., Thanos Karatzias, Ph.D., Ruby Charak, Ph.D., Joseph Spinazzola

Gepubliceerd in: Research on Child and Adolescent Psychopathology | Uitgave 9/2022

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Abstract

Developmental Trauma Disorder (DTD) is a proposed child psychopathology diagnosis with emotion/somatic, attention/behavioral, and self/relational dysregulation symptoms extending beyond posttraumatic stress disorder (PTSD). Confirmatory factor analyses (CFAs) tested four structural models with structured interview data for trauma history, PTSD, and DTD with 507 children receiving mental health or pediatric care ( N = 162, 32% diagnosed with DTD; N = 176; 35% with PTSD; N = 169, 33% with neither). A unidimensional model with a single latent variable had unacceptable fit (RMSEA = 0.094; CFI = 0.844). Compared to a model with PTSD and DTD as correlated first-order latent variables, a multidimensional model with correlated latent variables corresponding to the PTSD and DTD symptom clusters (Dc 2 =105.62, Ddf = 14, p < .001) and a hierarchical variant with correlated second order DTD and PTSD latent variables (Dc 2 =48.10, Ddf = 6, p < .001) fit the data better. The non-hierarchical multidimensional model was superior to the hierarchical variant (Dc 2 =66.05, Ddf = 8, p < .001). Stronger latent variable inter-correlations within PTSD and DTD domains than across domains, suggested that DTD and PTSD are distinguishable despite their inter-correlation. Exposure to family violence was the primary correlate of both the DTD and PTSD second-order latent variables. Results indicate that children’s trauma-related symptoms involve six inter-correlated domains extend beyond PTSD’s symptoms (i.e., re-experiencing, avoidance, arousal) to include DTD symptoms of emotional, cognitive-behavioral, and self-relational dysregulation. The inter-relationship of the DTD and PTSD latent variables suggest that DTD may constitute a component within a complex PTSD diagnosis paralleling the new adult CPTSD diagnosis.
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We propose that the high SRMR is attributable to local misfit rather than global model misfit as the post-hoc addition of a single parameter could lower the SRMR to acceptable limits. For example, adding a correlated residual between D5 DTD (Psychological boundary deficits) and D6 DTD (Impaired capacity to regulate empathic arousal) results in improved fit (χ2 = 942.074, df = 448, p < .001; RMSEA = 0.047 (90%CI = 0.042, 0.051); CFI = 0.962; TLI = 0.958; SRMR = 0.079).
 
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Metagegevens
Titel
Can Developmental Trauma disorder be distinguished from posttraumatic stress disorder? A confirmatory factor Analytic Test of Four Structural Models
Auteurs
Julian D. Ford, Ph.D ORCID
Mark Shevlin, Ph.D.
Thanos Karatzias, Ph.D.
Ruby Charak, Ph.D.
Joseph Spinazzola
Publicatiedatum
19-04-2022
Uitgeverij
Springer US
Gepubliceerd in
Research on Child and Adolescent Psychopathology / Uitgave 9/2022
Print ISSN: 2730-7166
Elektronisch ISSN: 2730-7174
DOI
https://doi.org/10.1007/s10802-022-00916-2

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