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It depends on what you mean by psychosis. Anti-psychotic medications effectively reduce the positive symptoms of schizophrenia (hallucinations, paranoia) at the expense of worsening the negative symptoms (rigidity, bradykinesia, cognitive slowing). Long-term use of antipsychotics, especially the older ones, can induce a Parkinson's-like syndrome. These ...


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This is a follow-up after my first answer, this is based on the suggestion of @mfloren in the comments part of his answer. You can't really use an independence test or a kolmogorov smirnov test because your data are not i.i.d. (your subjects give more than one answer). Your scoring idea would fix this, because you reestablish 1data=1subject but this has two ...


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This idea of score is interesting, but it's painful to assess if the two problems you raised are important or not. For the re-use of the "meaure group" I think it would be careful to not do it. I took much thinking over it and I still don't know what to think. Unfortunately, I have no solution, but if I share my different thoughts process here maybe it would ...


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To measure the frequencies of different patterns (do some patterns occur more frequently that others based on group) I see this as a chi-squared test of independence. If you are unfamiliar with the test, a quick example is here. For your situation, all participants would get the same placements of dots, and you would count how often each possible pattern is ...



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