Posttraumatic Stress Disorder Checklist (PCL-5)

Abstract

The Posttraumatic Stress Disorder Checklist (PCL-5) is a widely utilized 20-item self-report measure designed to assess the presence and severity of symptoms corresponding to Posttraumatic Stress Disorder (PTSD) according to the criteria established in the DSM-5. As a revision of the highly successful PCL, this instrument is quick to administer (5–10 minutes) and is suitable for use with adults (18 years and older). It serves as an essential tool in clinical and research settings for screening, provisional diagnosis, and monitoring therapeutic progress.

Keywords

PTSD, PCL-5, DSM-5, Trauma, Psychological Assessment, Screening Tool, Posttraumatic Stress Disorder Checklist, Self-report measure, Criterion A

Authors

F.W. Weathers, B.T. Litz, T.M. Keane, P.A. Palmieri, B.P. Marx, P.P. Schnurr (Development of the scale, 2013); C. Blevins, M. Davis, T. Witte, J. Domino (Initial Psychometric Evaluation, 2015)

Purpose

The PCL-5 was developed to provide a standardized, efficient method for evaluating the core symptomatic criteria of PTSD as defined by the DSM-5. Its versatility makes it invaluable across various professional contexts.

The primary purposes of employing the PCL-5 include:

• Screening individuals in general or high-risk populations for the likelihood of developing or currently experiencing PTSD.
• Aiding clinicians in making a provisional diagnosis of PTSD, often requiring subsequent structured interviews for confirmation.
• Monitoring the change in symptom severity both during and after psychological or pharmacological treatment interventions.

Construct

The PCL-5 measures the 20 distinct symptoms of PTSD, which are grouped into four primary symptom clusters mandated by the DSM-5 diagnostic criteria. These clusters correspond to the intrusion, avoidance, negative alterations in cognitions and mood, and alterations in arousal and reactivity domains.

Each item on the scale asks the respondent to rate how much they have been bothered by a specific problem or symptom over the past month. The structure of the instrument directly reflects the underlying psychological construct of trauma-related distress and functional impairment. Crucially, the PCL-5 is available in three distinct formats, allowing flexibility in how Criterion A (exposure to actual or threatened death, serious injury, or sexual violence) is assessed.

Validity

Initial psychometric evaluations suggest that the PCL-5 is a psychometrically robust instrument, demonstrating strong evidence of validity, particularly when compared to other established measures of trauma and stress.

The measure exhibits strong convergent validity, showing a high correlation with other established PTSD measures (correlation coefficient, rs = .85). This indicates that the PCL-5 effectively measures the same construct as its predecessors and similar clinical instruments. Furthermore, it demonstrates adequate discriminant validity, correlating moderately with related but distinct constructs such as Depression (r = .60), and correlating least strongly with constructs theoretically unrelated to PTSD, such as Mania (r = .31).

Reliability

The reliability of the PCL-5 has been rigorously assessed, confirming its consistency both internally and over time. The scale demonstrates high internal consistency, with a reported Cronbach’s alpha (α) of .94. This high coefficient indicates that the 20 items consistently measure the same underlying construct of PTSD severity.

Additionally, the scale possesses good test-retest reliability (r = .82). This finding suggests that the scores obtained from the PCL-5 remain stable when administered to the same individuals over a reasonable period, assuming no significant changes in their clinical status or treatment regimen have occurred.

Factor Analysis

Although the source content does not provide specific factor analysis results, the PCL-5 is structured explicitly to mirror the diagnostic criteria of the DSM-5. The symptoms are generally analyzed according to either the 4-factor model (Re-experiencing, Avoidance, Negative Alterations in Cognitions and Mood, and Hyperarousal) or the more recently supported 7-factor hybrid model proposed by the DSM-5 developers, which separates dysphoria and anhedonia from the negative cognitions cluster. Academic literature confirms that the PCL-5 structure aligns well with these sophisticated models of Posttraumatic Stress Disorder symptom clusters.

Instrument

Test Type: Self-report questionnaire / Clinical screening instrument

Format: 20 items scored on a 5-point Likert scale (0 = not at all; 4 = extremely)

Language Available: English, French, Spanish, and Chinese (translations of the PCL and PCL-5 are available)

Population Group: Clinical and research populations

Age Group: Adults (18 years and older)

Population Details: Applicable for general population screening and specialized populations, including treatment-seeking military service members.

Test Methodology: Quantitative assessment of symptom frequency and severity over the past month. The scale takes approximately 5–10 minutes to complete.

Keywords

Psychological assessment, PTSD, Convergent validity, Internal consistency, Trauma exposure, Mental health screening, Clinical utility

Authors

Author ORCID Identifier: Not provided in source content.

Affiliation Email addresses: Not provided in source content.

Correspondence Address: Not provided in source content.

Permissions & Fee and Test Year

The PCL-5 is freely accessible and distributed by the U.S. Department of Veterans Affairs (VA) National Center for PTSD. The checklist and related information are available online. While the measure is accessible for general use, the official interpretation and scoring for diagnostic purposes should only be performed by a qualified clinician. The PCL-5, based on the DSM-5 criteria, was initially released in 2013.

Information regarding the scale is available at the official source: http://www.ptsd.va.gov/professional/assessment/adult-sr/ptsd-checklist.asp.

Reference’s

• Ashbaugh, A. R., Houle-Johnson, S., Herbert, C., El-Hage, W., & Brunet, A. (2016). Psychometric Validation of the English and French Versions of the Posttraumatic Stress Disorder Checklist for DSM-5 (PCL-5). PLOS ONE, 11(10), e0161645. doi:10.1371/journal.pone.0161645
• Blevins, C., Weathers, F., Davis, M., Witte, T., & Domino, J. (2015). The Posttraumatic Stress Disorder Checklist for DSM‐5 (PCL‐5): Development and Initial Psychometric Evaluation. Journal of Traumatic Stress, 28(6), 489-498. doi:10.1002/jts.22059
• PTSD Checklist for DSM-5 (PCL-5) – PTSD: National Center for PTSD. (2016). Retrieved 8 March 2017, from http://www.ptsd.va.gov/professional/assessment/adult-sr/ptsd-checklist.asp
• Weathers, F.W., Litz, B.T., Keane, T.M., Palmieri, P.A., Marx, B.P., & Schnurr, P.P. (2013). The PTSD Checklist for DSM-5 (PCL-5). Scale available from the National Center for PTSD at www.ptsd.va.gov.
• Wortmann, J. H., Jordan, A. H., Weathers, F. W., Resick, P. A., Dondanville, K. A., Hall-Clark, B., … Litz, B. T. (2016). Psychometric analysis of the PTSD Checklist-5 (PCL-5) among treatment-seeking military service members. Psychological Assessment, 28(11), 1392–1403. doi:10.1037/pas0000260

Items of the Posttraumatic Stress Disorder Checklist (PCL-5)

IMPORTANT: The following scale items must be preserved in their original language and must not be changed in any way.

• Feeling distant or cut off from other people
• Being “superalert”, watchful or on guard