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Table 4 Outline of Psychosis dimension scale. Table shows key points and ranges on the P dimension together with the criteria defining the ranges. More details including explicit guidelines for ratings can be found on page 5 of the BADDS rating guidelines (Appendix A).

From: The Bipolar Affective Disorder Dimension Scale (BADDS) – a dimensional scale for rating lifetime psychopathology in Bipolar spectrum disorders

Range on P dimension Criterion defining range
0 No evidence of psychotic or near-psychotic schizotypal features
1 Uncertainty about presence of psychotic-spectrum symptoms (ie. Suspected but not definite)
2–9 Presence of near-psychotic schizotypal features but never any clear-cut psychotic symptoms
10–20 Brief, clear-cut psychotic symptoms that are not a prominent feature of the illness
21 – 100 Clear-cut psychotic symptoms that are a prominent feature of one or more episodes of illness