Hi Catlinbond,
you could try and look in the book "Measuring Disease" from Ann Bowling, Open University Press. This contains information on various scales, including psychiatric ones.
I fear that most assessments regarding areas like psychosis, mania etc probably will need a clinician to fill them in (as a typical symptom of a patient with psychosis / mania is the lack of insight). I think if they would be filled in by the patient to ones without symptoms would be able to fill them in, yet the "psychotic patients" would not!