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Kaip apskaičiuoti PCL-5 PTSD Score

Kas yra PCL-5 PTSD Score?

The PCL-5 (PTSD Checklist for DSM-5) Score Calculator computes a total severity score from 20 items rated 0-4, used by clinicians to screen for post-traumatic stress disorder and monitor symptom changes over time.

Formulė

PCL-5 Total Score = Sum of 20 item ratings (each 0-4); Range: 0-80; Provisional PTSD cutoff: 31-33
Ti
Item Score (points (0-4)) — Individual item rating: 0=Not at all, 1=A little bit, 2=Moderately, 3=Quite a bit, 4=Extremely
TS
Total Score (points (0-80)) — Sum of all 20 item scores representing overall PTSD symptom severity
CO
Cutoff Score (points) — Provisional diagnostic threshold, typically 31-33 for probable PTSD

Žingsnis po žingsnio vadovas

  1. 1Rate each of the 20 items on a 0 (not at all) to 4 (extremely) scale based on the past month
  2. 2The calculator sums all 20 item scores to produce a total severity score (0-80)
  3. 3Scores are compared against the provisional diagnostic cutoff of 31-33
  4. 4Cluster scores (B: re-experiencing, C: avoidance, D: cognition/mood, E: arousal) are also computed

Worked Examples

Įvestis
20 items with average rating of 2.0
Rezultatas
Total score: 40/80 — above the provisional PTSD cutoff of 33, suggesting probable PTSD diagnosis
Įvestis
20 items with average rating of 1.0
Rezultatas
Total score: 20/80 — below the cutoff, but clinically significant symptoms may still warrant treatment

Common Mistakes to Avoid

  • ✕Using the PCL-5 as a standalone diagnostic tool — it is a screening instrument that must be confirmed by clinical interview
  • ✕Applying the same cutoff score (33) to all populations — military, veteran, and civilian populations may use different thresholds
  • ✕Ignoring cluster-specific scores which can reveal targeted treatment needs even when total score is below cutoff

Frequently Asked Questions

What PCL-5 score indicates PTSD?

A total score of 31-33 or above is the provisional cutoff suggesting probable PTSD. However, a formal diagnosis requires a structured clinical interview. Scores of 28-32 warrant further assessment.

How often should the PCL-5 be administered?

In clinical settings, the PCL-5 is typically administered at intake and every 2-4 weeks during treatment to track progress. A change of 5-10 points is considered reliable change, and 10-20 points indicates clinically meaningful improvement.

Is the PCL-5 free to use?

Yes. The PCL-5 is in the public domain and freely available from the National Center for PTSD. No permission or licensing fees are required for clinical or research use.

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