Research / Short check-in
Questionnaires from clinical practice, not invented questions. A starting point for a talk with a professional, never a diagnosis.
The app uses the six-question ASRS v1.1 screener from the World Health Organization adult ADHD self-report scale. Four or more answers in the shaded range are consistent with adult ADHD and a reason to talk to a professional. It does not diagnose. Only the official translations are used (Spanish, Russian, Italian, French, German, Japanese, Chinese); there is none in Greek or Korean yet, so people using the app in those languages choose another language to take it in. © New York University and President and Fellows of Harvard College. All rights reserved. NYU licence page
Two questions first (PHQ-2). Only if they add up to 3 or more does the app ask the other seven (PHQ-9). The result is shown in the standard bands: mild from 5, moderate from 10, moderately severe from 15, severe from 20. The PHQ questionnaires were developed by Drs Spitzer, Williams, Kroenke and colleagues with an educational grant from Pfizer and are in the public domain. The PHQ-9 has an official translation in all 10 languages, and the two PHQ-2 questions are the first two questions of that translation.
The same two-step idea for anxiety: two questions, then seven only if needed. Bands: mild from 5, moderate from 10, severe from 15. Public domain. The official GAD-7 translations are used in every app language except Japanese, where the app lets you take the check in another language rather than use an unofficial translation.
One plain question about tics, with no score. If the answer is yes, the app points to daily tic logging.
If the answer to PHQ-9 question 9 (thoughts of being better off dead or of hurting yourself) is anything above “Not at all”, the app shows support at once, whatever the total score: the emergency number and, where one is listed, a crisis line for the country chosen in the app. We checked these numbers against findahelpline.com on 16 October 2026. Numbers can change, so please confirm them with your local health service.
Autistic traits are checked with the Comprehensive Autistic Trait Inventory (CATI v1.1) by English, Gignac, Visser, Whitehouse, Enns and Maybery: 42 statements answered from “Definitely disagree” to “Definitely agree”. It covers six areas: social interactions, communication, social camouflage, self-regulatory behaviours, cognitive flexibility and sensory sensitivity. Each answer scores 1 to 5 (five statements are scored the other way round), so the total is 42 to 210, and each area is 7 to 35. A total of 148 or more is the level that, in research (cut-off 147.5, English version), fits autistic adults better than non-autistic adults. It is not a diagnosis. The authors make the CATI free to use unchanged, with credit. Official versions are used in English, French, German, Italian, Russian, Spanish, Japanese and Chinese; there is none in Greek or Korean yet, so people using the app in those languages choose another language to take it in. Reference: English MCW, Gignac GE, Visser TAW, Whitehouse AJO, Enns JT, Maybery MT. The Comprehensive Autistic Trait Inventory (CATI). Molecular Autism 2021;12:37. Cut-off: English MCW et al., Autism 2025, doi:10.1177/13623613251347740.
If your answers reach the research level for ADHD, autistic traits, OCD, reading and spelling or coordination, or if you say you have tics, the app offers to switch on tracking for that condition. Nothing is switched on unless you tap it, and you can say no.
Reading and spelling uses the Adult Reading History Questionnaire (ARHQ) by Lefly and Pennington, which its author says is free to use. Dyspraxia, mood after birth and the full tic questionnaire show “Coming soon” in the app while we ask their authors for permission. The OCD check-in (OCI-R, Foa et al.) is in English for now, used with permission.
A questionnaire score cannot diagnose anything. It is a starting point for a talk with a doctor or psychologist.
Nowhere. Like everything in the app, they stay on your phone. Nothing is sent to us.
We only use the official translation of each questionnaire, because a different wording can change what a score means. Where there is none, the app lets you choose another language to take it in, instead of guessing.
Little Greenhouse is still finishing its way to Google Play.
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