Indicated prevention, risk and neuropsychological deficits
نویسندگان
چکیده
ion/Flexibility (Wisconsin Card SortingTest; Heaton et al, 1993) The percentage of perseverative errors was used as the central parameter. Statistical analyses Frequency counts and descriptive statistics were calculated for initial basic symptoms, observed and self-perceived psychopathology. Differences in initial psychopathology between those patients at risk who experienced a transition to psychosis during follow-up and those who did not were tested by Mann–Whitney U-tests. Fisher’s exact test statistics, sensitivity, specificity and related measures were calculated in the prospective part. Data on neuropsychology were analysed by non-parametric statistics because of small sample size and asymmetrical distributions of raw data. Mann–Whitney U-tests were used to analyse the difference between prodromal patients and the two control groups (normal controls and patients with schizophrenia). To estimate the impact of verbal IQ on neuropsychological test data, Spearman
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