Scale Overview & Construct
20-item scale measuring everyday symptoms associated with prefrontal cortex dysfunction: initiation, attention, planning, and emotional/social regulation.
Purpose & Measurement Objectives
Instrument Specifications
Academic Citation & Instrument Provenance
When referencing this instrument in research, academic theses, or clinical institutional audits, please cite the original author publication:
Governance, Boundaries & Ethical Use
Imported from the OpenScales open item-bank project. This specific digital implementation has not been independently validated by PsiQ — scores are for self-reflection and educational purposes only, and are not a diagnosis.
License: CC BY 4.0. Citation: Sosa, Pedrero-Perez & Ruiz-Sanchez de Leon (2025), Journal of Neuropsychology, 19(2), 200-215. This is not a diagnostic tool.
Frequently Asked Questions
What is the Prefrontal Symptoms Inventory (PSI-20)?
20-item scale measuring everyday symptoms associated with prefrontal cortex dysfunction: initiation, attention, planning, and emotional/social regulation.
How long does the Prefrontal Symptoms Inventory (PSI-20) take?
It takes about 8 minutes to answer all 20 questions. You can go at your own pace.
Is this test free, and is it available in Hindi?
Yes, it is free with a PsiQ account. The questions and answer options are available in English, Hindi and Hinglish.
Can this test diagnose a condition?
No. Online self-report scales are for self-reflection, education and research, not diagnosis. If you are worried about your mental health, please speak to a qualified mental-health professional.