Factor Analysis of the Scale of Prodromal Symptoms: Differentiating between Negative and Depression Symptoms

@article{Klaassen2011FactorAO,
  title={Factor Analysis of the Scale of Prodromal Symptoms: Differentiating between Negative and Depression Symptoms},
  author={R. Klaassen and E. Velthorst and D. Nieman and L. de Haan and H. Becker and P. Dingemans and J. R. van de Fliert and M. van der Gaag and D. Linszen},
  journal={Psychopathology},
  year={2011},
  volume={44},
  pages={379 - 385}
}
Background: This study examines the ability of the Scale of Prodromal Symptoms (SOPS) to differentiate between negative and depression symptoms in a young help-seeking ultrahigh risk (UHR) group. Methods: SOPS data of 77 help-seeking patients at UHR for psychosis were analyzed with an exploratory factor analysis. The extracted Depression factor was validated with the Beck Depression Inventory (BDI). The extracted SOPS Negative symptoms factor was validated with the Negative symptoms subscale of… Expand
19 Citations
Do psychosis prodrome onset negative symptoms predict first presentation negative symptoms?
  • 16
Symptom dimensions and functional impairment in early psychosis: More to the story than just negative symptoms
  • 63
  • PDF
...
1
2
...

References

SHOWING 1-10 OF 44 REFERENCES
Specificity of the Calgary Depression Scale for schizophrenics
  • 214
The positive and negative syndrome scale (PANSS) for schizophrenia.
  • 15,823
  • PDF
Factorial structure of the Scale of Prodromal Symptoms
  • 89
The structure of negative symptoms within schizophrenia: implications for assessment.
  • 508
  • PDF
Depression in the long-term course of schizophrenia
  • 93
...
1
2
3
4
5
...