Trauma refers to exposure to events involving actual or threatened death, serious injury, sexual violence, or other experiences that overwhelm ordinary coping and meaning-making processes. Such events may lead to persistent changes in emotional processing, cognition, behavior, bodily arousal, and sense of safety.
Post-traumatic stress disorder (PTSD) is one of the primary clinical outcomes of trauma exposure. It is characterized by intrusive re-experiencing, avoidance of trauma-related cues, negative alterations in cognition and mood, and heightened arousal. However, not everyone exposed to trauma develops PTSD, and trauma responses vary widely in form, severity, and duration.
Contemporary approaches emphasize that trauma-related processes exist on a continuum, ranging from transient stress reactions to chronic and complex forms of post-traumatic disturbance.
These measures identify exposure to potentially traumatic events, adverse childhood experiences, neglect, combat exposure, and other stressful life events. They describe the context in which trauma-related symptoms may develop, but do not assess PTSD directly.
The Life Events Checklist for DSM-5 (LEC-5) assesses exposure to potentially traumatic events and is commonly used alongside PTSD symptom measures.
The Childhood Trauma Questionnaire (CTQ-SF) assesses retrospective reports of childhood maltreatment, including emotional, physical, and sexual abuse, as well as emotional and physical neglect.
The Adverse Childhood Experiences International Questionnaire (ACE-IQ) assesses early-life adversity, including abuse, neglect, household dysfunction, and broader contextual stressors.
The Multidimensional Neglectful Behavior Scale (MNBS) assesses neglect across several developmental needs, including physical, emotional, supervisory, and cognitive care. It is relevant to childhood adversity and trauma-exposure assessment.
The Combat Exposure Scale (CES) assesses exposure to combat-related stressors and is commonly used in military populations.
These instruments assess post-traumatic stress symptoms, including intrusive re-experiencing, avoidance, negative changes in cognition and mood, and hyperarousal. They may be used for symptom severity assessment, monitoring change, research evaluation, or clinician-administered diagnostic clarification.
The PTSD Checklist for DSM-5 (PCL-5) is one of the most widely used self-report measures of PTSD symptoms aligned with DSM-5 criteria.
The Impact of Event Scale (IES-R) assesses post-traumatic distress across intrusion, avoidance, and hyperarousal.
The PTSD Symptom Scale (PSS-SR) provides a structured assessment of PTSD symptom frequency and severity.
The Davidson Trauma Scale (DTS) assesses both frequency and intensity of PTSD symptoms.
The Trauma Symptom Inventory (TSI-2) provides a broader assessment of trauma-related psychological consequences, including self-disturbance, interpersonal difficulties, and dissociative symptoms.
The Clinician-Administered PTSD Scale for DSM-5 (CAPS-5) is a structured clinician-administered interview for assessing PTSD diagnosis and symptom severity according to DSM-5 criteria.
The Mississippi Scale for PTSD (M-PTSD) is an early measure developed primarily for combat veterans. It is historically important but less central in contemporary assessment.
Brief measures are used for rapid screening, initial triage, or compact monitoring of trauma-related symptoms in clinical, primary care, emergency, and research settings. A positive screening result indicates the need for more complete assessment.
The Primary Care PTSD Screen for DSM-5 (PC-PTSD-5) is a 5-item screening tool designed to identify individuals with probable PTSD in primary care and related settings.
The Trauma Screening Questionnaire (TSQ) provides a short screening measure for identifying individuals at risk for PTSD.
The Treatment Outcome PTSD Scale (TOP-8) is used to monitor PTSD symptom change over time, particularly in treatment contexts.
These measures assess complex post-traumatic disturbance and maladaptive responses to identifiable stressful events. They address broader trauma-related or stress-related patterns that may include affective dysregulation, disturbed self-organization, preoccupation with stressors, avoidance, and functional impairment.
The International Trauma Questionnaire (ITQ) assesses ICD-11 PTSD and complex PTSD. In addition to core PTSD symptoms, it captures disturbances in self-organization, including affect dysregulation, negative self-concept, and relational difficulties.
The Adjustment Disorder New Module (ADNM-20) assesses symptoms of adjustment disorder following stressful life events, including preoccupation, failure to adapt, avoidance, emotional distress, and impairment.
The Complex Trauma Inventory assesses symptoms and consequences of complex trauma, including disturbances in emotion regulation, self-concept, relationships, and posttraumatic stress responses.
These instruments assess trauma exposure and post-traumatic symptoms in children and adolescents using developmentally appropriate formats. They may include self-report, caregiver report, clinician observation, or structured assessment of behavioral, emotional, somatic, and developmental manifestations.
The Children's Post-Traumatic Stress Reaction Index (CPTS-RI) assesses PTSD symptoms in children and adolescents.
The UCLA PTSD Reaction Index assesses trauma exposure and post-traumatic stress symptoms in children and adolescents, including DSM-5–aligned versions.
The Child PTSD Symptom Scale for DSM-5 (CPSS-5) assesses PTSD symptom severity in children and adolescents, with self-report and interview versions.
The Child and Adolescent Trauma Screen (CATS, CATS-2) assess traumatic experiences and PTSD symptoms in children and adolescents. CATS-2 also covers ICD-11 PTSD and complex PTSD.
The Young Child PTSD Checklist (YCPC) provides a caregiver-report measure for younger children.
The Children's Revised Impact of Event Scale (CRIES-13) assesses posttraumatic stress symptoms in children and adolescents, including intrusion, avoidance, and arousal.
These measures assess acute psychological responses occurring during or shortly after traumatic exposure. They focus on peritraumatic distress, detachment, altered awareness, emotional overwhelm, and dissociative reactions that may shape later trauma-related symptoms.
The Peritraumatic Distress Inventory (PDI) assesses emotional and physiological distress experienced during or immediately after a traumatic event.
The Peritraumatic Dissociative Experiences Questionnaire (PDEQ) assesses dissociative experiences occurring during or immediately after a traumatic event, such as emotional numbing, altered time perception, derealization, and detachment.
⇒ Dissociation more broadly is addressed in the dedicated Dissociation domain, since it may occur both within and outside trauma-related conditions.
These measures assess how people cope with, interpret, and recover from traumatic experiences. They include perceived coping ability, recovery processes, trauma-related beliefs, disruption of core assumptions, posttraumatic growth, and negative changes after trauma.
The Perceived Ability to Cope with Trauma (PACT) assesses perceived coping capacity following trauma, including both adaptive and maladaptive responses.
The Trauma Recovery Measure (TRM) assesses psychological recovery processes following trauma.
The Posttraumatic Maladaptive Beliefs Scale (PMBS) assesses trauma-related beliefs about current life circumstances, including perceived threat of harm, negative self-worth and judgment, and reduced trust in the reliability of others. It captures cognitive patterns that may develop or persist after trauma exposure and contribute to post-traumatic distress.
The Core Beliefs Inventory (CBI) assesses the extent to which a stressful or traumatic event has disrupted or challenged a person's basic assumptions about the world, the self, and other people.
The Posttraumatic Growth Inventory (PTGI) assesses perceived growth in areas such as personal strength, relationships, appreciation of life, new possibilities, and meaning.
The Posttraumatic Growth and Posttraumatic Depreciation Inventory (PTGDI-X) assesses both positive and negative perceived changes after trauma, including posttraumatic growth and posttraumatic depreciation across multiple life domains.
⇒ Anxiety. PTSD overlaps with anxiety through threat anticipation, avoidance, hypervigilance, physiological arousal, and fear-based responses to trauma reminders.
⇒ Depression. Trauma-related distress may overlap with depression through emotional numbing, guilt, shame, hopelessness, loss of interest, and negative beliefs about the self or world.
⇒ Stress. Trauma-related reactions overlap with stress through acute distress, hyperarousal, physiological activation, adjustment difficulties, and stress responses after overwhelming events.
⇒ Sleep Disorders. Trauma-related symptoms often overlap with sleep disturbance through nightmares, insomnia, hyperarousal, and disrupted sleep continuity.
Trauma assessment should distinguish exposure to potentially traumatic events, current post-traumatic symptoms, complex or stress-related presentations, developmental manifestations, dissociation, coping, recovery, and functional impact.
Exposure measures identify possible traumatic experiences, but do not show whether PTSD is present. Symptom measures estimate current distress, while structured clinical assessment is needed when diagnosis, severity, risk, or differential interpretation is clinically important.
Interpretation should consider the timing, duration, and course of symptoms; the nature of the traumatic exposure; developmental context; dissociation; comorbid anxiety, depression, sleep disturbance, or substance use; and the impact on relationships, work, study, and daily functioning.
Trauma responses vary widely. A comprehensive assessment should avoid reducing trauma to a single score and instead describe the profile of symptoms, resources, risks, recovery processes, and clinical needs.