Predictors & Mechanisms of Adolescent PTSD

Adolescent Inclusion Criteria: 1. Adolescent of any sex, race, or ethnicity; between the ages of 14 and 18 years old. 2. Accompaniment by a caregiver willing to participate. Note: Adolescents aged 18 years old are able to provide their own consent though still require caregiver participation to be eligible for study participation. 3. Ability to comprehend English. Rationale: Public census data indicates that the overwhelming majority of youth in the local community are English-speaking (\>98%), inclusive of multi-lingual households. 4. Endorsement of exposure to one or more potentially traumatic event(s), as defined by DSM-5 Criterion A event, that the adolescent remembers and is able to verbalize. 5. A total score ≥15 on the Child and Adolescent Trauma Screen (CATS) or report at least one clinically significant symptom on Intrusion/Re-experiencing, Avoidance, and Hyperarousal symptom domains, as defined by DSM-5 PTSD criteria, and one area of impairment. Adolescent Exclusion Criteria: 1. Previous diagnosis indicating intellectual disability or pervasive developmental disorder that would preclude participant from understanding study procedures. 2. Active psychosis, bipolar disorder, or a comorbid condition that requires a higher level of immediate care (e.g., anorexia nervosa, alcohol withdrawal). 3. Active suicide risk with ideation, plan and intent and/or recent (past 6 months) hospitalization for suicidality. These individuals will be referred directly for immediate services and treatment. All participants who endorse suicidal ideation will be engaged in safety planning as part of the study protocol. 4. Individuals on psychotropic medications must be stabilized on the medication for at least four weeks prior to study start date. 5. Individuals currently engaged in trauma-focused, exposure-based treatment. Caregiver Inclusion Criteria: 1. Caregiver, parent, or legal guardian of an adolescent between the ages of 14 and 18 years old. 2. Ability to comprehend English. Caregiver Exclusion Criteria: 1\. Previous diagnosis indicating intellectual disability or pervasive developmental disorder that would preclude participant from understanding study procedures.