Open Screen

How this works

Open Screen asks short questionnaires one question at a time. It starts with brief screening questions for each area and only goes deeper where your answers suggest it's worth it. It stops asking once more answers can't change a result. You can stop any time and see what it can say so far, with ranges where it's still unsure.

Validated and experimental

Validated results use published questionnaires, worded and scored exactly as published, with their published cut-offs. Experimental results come from questions we wrote ourselves, scored with an item response model. Their numbers are provisional guesses until we can calibrate them, so they are always labelled.

Privacy

Everything runs in your browser. There is no server-side storage, no account, and no analytics. Answers are kept in this browser's local storage so you can come back; you can delete them from the results page.

Questionnaires used

  • ASRS v1.1 Screener (Part A) ADHD traits · validated

    Kessler RC, Adler L, et al. The World Health Organization Adult ADHD Self-Report Scale (ASRS). Psychol Med 2005;35:245-256. Wording, options and shading checked against the ASRS v1.1 Symptom Checklist PDF (research/sources/ASRS-v1.1-symptom-checklist.pdf), 2026-10-18.

  • ASRS v1.1 Symptom Checklist (Part B) ADHD traits · validated

    ASRS v1.1 Symptom Checklist, Part B. "No total score or diagnostic likelihood is utilized for the twelve questions." Checked against research/sources/ASRS-v1.1-symptom-checklist.pdf, 2026-10-18.

  • Everyday attention (our own items) ADHD traits · experimental

    Original items written 2026-10-18. IRT parameters are provisional guesses, not calibrated on any data. Not reviewed by a clinician yet.

  • PHQ-9 Depression · validated

    Kroenke K, Spitzer RL, Williams JB. The PHQ-9. J Gen Intern Med 2001;16:606-613. PHQ-2 screen: Kroenke 2003, cutoff 3. Wording checked against the phqscreeners.com PDF (research/sources/PHQ-9_English.pdf), 2026-10-18. "No permission required to reproduce, translate, display or distribute."

  • PHQ-9 difficulty question Depression · validated

    PHQ-9 final question, same source as above.

Question bank version a4f21e2c.