CPSS-5 — scoring and PTSD cutoffs for children

The CPSS-5 is the dominant pediatric self-report PTSD measure. It maps DSM-5 PTSD the same way the PCL-5 does for adults, but the wording is calibrated for ages 8-18 and the response anchors translate frequency to terms kids actually use (“once a week or less,” “4-5 times a week”). If you do Trauma-Focused CBT, child or adolescent EMDR, or any pediatric trauma work, this is the screener and outcome measure that fits the developmental level.

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What it measures

DSM-5 PTSD severity in children and adolescents, organized into the same four diagnostic clusters as the PCL-5 plus a functional impairment block:

• Cluster B — Intrusion (items 1-5). Memories, dreams, flashbacks, upset reactions, physical reactions.
• Cluster C — Avoidance (items 6-7). Avoiding internal and external reminders.
• Cluster D — Cognition and Mood (items 8-14). Amnesia, negative beliefs, self-blame, negative emotions, anhedonia, detachment, numbing.
• Cluster E — Arousal and Reactivity (items 15-20). Irritability, risk-taking, hypervigilance, startle, concentration, sleep.
• Functional impairment (items 21-27). School, friends, family, fun activities, daily routines, behavior with family, behavior in general.

The items reference “the event.” Before administering, name the index trauma with the child in conversation — the instructional prompt references “the upsetting experience your therapist has already talked about with you.”

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When to use it

• Pediatric trauma assessment when PTSD is part of the differential.
• Pre/post Trauma-Focused CBT (TF-CBT) and similar pediatric protocols.
• Treatment response monitoring every 2-4 weeks during active trauma work.
• Outcome documentation at discharge.

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How clients fill it out

Twenty-seven items rated 0-4. The frequency anchors are written for kids: 0 (Not at all), 1 (Once a week or less / once in a while), 2 (2-3 times a week / half the time), 3 (4-5 times a week / almost always), 4 (6 or more times a week / almost always). Reading level is grade 5 — most 8-year-olds can complete with light support. Younger children or those with reading difficulties: read the items aloud and let the child point or say the number. Five to ten minutes.

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Scoring and severity cutoffs

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Symptom severity (items 1-20)

Sum of the 20 symptom items. Range 0-80. A total of 31 or higher is the cutoff for probable PTSD (Foa et al. 2018).

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DSM-5 cluster subscales

The four clusters and the functional impairment block surface as separate subscales on the result: The strict DSM-5 algorithm for a child is: cluster B ≥1 item rated ≥1, C ≥1 item ≥1, D ≥2 items ≥1, E ≥2 items ≥1, plus ≥1 functional impairment item ≥1. Inspect per-item responses when you need the strict algorithm — the total ≥31 cutoff is the primary screening flag.

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Sensitive items

Several items live in inherently sensitive territory:

• Item 9 — negative beliefs about self / world.
• Item 10 — self-blame.
• Item 16 — risk behaviors, including unprotected sex.

The whole instrument is in a trauma context — every item presumes a known traumatic event the child has discussed with you. Frame and debrief accordingly.

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Risk flagging

The CPSS-5 doesn’t include a suicide item, but item 16 (risk behaviors) and the trauma context warrant pairing with the adolescent-appropriate suicide assessment in your jurisdiction (C-SSRS is one option) at intake and at any inflection point.

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CPSS-5 vs PCL-5

Same DSM-5 criteria, different age. The CPSS-5 is the version written for ages 8 to 18, in language a child can answer honestly, and it adds seven items on how the symptoms interfere with school, friendships and home. The PCL-5 was validated in adults. For anyone in the 8–18 range the CPSS-5 is the instrument. The overlap at the top of that range is a judgment call — a seventeen-year-old in adult services may be better served by the PCL-5 if that’s the measure the rest of their file uses, and the scores are not interchangeable either way.

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Is it free to use?

Yes. Free clinical use, per the Center for the Treatment and Study of Anxiety at UPenn.

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Citation

Foa, E. B., Asnaani, A., Zang, Y., Capaldi, S., & Yeh, R. (2018). “Psychometrics of the Child PTSD Symptom Scale for DSM-5 for trauma-exposed children and adolescents.” Journal of Clinical Child & Adolescent Psychology, 47(1): 38-46. Free clinical use per the University of Pennsylvania Center for the Treatment and Study of Anxiety. Verbatim canonical wording.

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When not to use it

• The client is an adult. Use the PCL-5 or, for ICD-11, the ITQ.
• The trauma history hasn’t been established. Name the index event in conversation first.
• The child is under 8. The CPSS-5 is validated 8-18. Pre-school trauma assessment is a clinician-administered space — CPSS-5 self-report isn’t the right fit.

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