Patients with schizophrenia (n=131) | ||||||
---|---|---|---|---|---|---|
CA | PEM | PEN | TE | DMS | ||
Correlation coefficient† | CA | – | – | – | – | – |
PEM | −0.70** | – | – | – | – | |
PEN | −0.79** | 0.73** | – | – | – | |
TE | −0.88** | 0.71** | 0.89** | – | – | |
DMS | −0.58** | 0.30* | 0.28* | 0.30* | – |
*p<0.01.
**p<0.001.
†Spearman's rank correlation coefficient.
CA, categories achieved; DMS, difficulties of maintaining set; PEM, perseverative errors in Milner; PEN, perseverative errors in Nelson; TE, total errors; WCST, Wisconsin Card Sorting Test.