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Psychosocial Evaluation & Threat Risk Assessment

The PETRA threat assessment matrix helps you classify the content of a threat as low, medium, or high risk based on the information gleaned from the threat itself.
Psychosocial Evaluation & Threat Risk Assessment™ (PETRA™)
Jay Schneller, PhD
Purpose:Assess psychosocial symptomatology and risk of violence threat among adolescents
Age range:11 to 18 years
Admin time:10-15 minutes
Scoring time:5 minutes
Qualification level:S or B
View print pricing.
Supplemental Product Resources
To download information, forms, templates, procedural suggestions, and links to help school psychologists facilitate the threat assessment process, visit

Following a threat of violence, the PETRA enables you to analyze the context of psychosocial, ecological, and coping/resiliency factors to assist in the identification, assessment, intervention and treatment planning, and behavioral management of adolescents who pose a risk of targeted violence toward others.

Fully understand the content and context of the threat of violence

  • Designed for use with adolescents who exhibit threatening behavior, primarily in school. Critical items identify known threat risk factors.
  • The PETRA provides four domain scores (Psychosocial, Resiliency Problems, Ecological, Total), eight cluster scores (Depressed Mood, Alienation, Egocentricism, Aggression, Family/Home, School, Stress, Coping Problems), two response style indicators (Inconsistency, Social Desirability), and eight critical items.
  • Interpretation is straightforward and incorporates a thorough five-step systematic methodology for gathering, guiding, and interpreting multisource data. Results should be considered in light of background information, information from other informants, and information gathered from follow-up interviews.
  • To learn more about the PETRA, visit the PAR Training Portal to watch a video on school violence and threat assessment.

Item numberProduct descriptionList priceAdd to Cart
WW-5788-KTPETRA Introductory Kit
includes PETRA Professional Manual, 25 Rating Forms, and 25 Score Summary/Profile Forms
Manuals, Books, and Equipment
Item numberProduct descriptionList priceAdd to Cart
WW-5789-TMPETRA Professional Manual$69.00
Forms and Booklets
Item numberProduct descriptionList priceAdd to Cart
WW-5790-RFPETRA Rating Forms (pkg/25)$71.00
WW-5791-PFPETRA Score Summary/Profile Forms (pad/25)$35.00
Related Products
Classification of Violence Risk™ (COVR™)
Psychopathic Personality Inventory™–Revised (PPI™-R)

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