Important to note the various limitations of this approach:

> It relies only on self-reported symptoms, and features requiring clinician observation are missing; symptoms are decontextualized (e.g., insomnia due to substance withdrawal isn’t differentiated from insomnia due to anxiety); all symptoms were assessed using a 12-month time scale, even though different symptom patterns exist at different time scales.

In particular, I’m not sure how this would identify somebody with the traditional schizophrenia + anosognosia combo, which requires another person to help diagnose.