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
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  • 11
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  • 7
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  • 16
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  • 15
  • PDF
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  • 3
  • PDF
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  • 8
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  • 63
  • PDF
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  • 9
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  • 25
  • PDF
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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 factor structure for the Positive and Negative Syndrome Scale (PANSS) in recent-onset psychosis
  • 307
The structure of negative symptoms within schizophrenia: implications for assessment.
  • 508
  • PDF
Nonspecific and attenuated negative symptoms in patients at clinical high-risk for schizophrenia
  • 201
Association between psychotic experiences and depression in a clinical sample over 6 months
  • 140
Defeatist beliefs as a mediator of cognitive impairment, negative symptoms, and functioning in schizophrenia.
  • 282
  • PDF
Depression in the long-term course of schizophrenia
  • 93
Meta-analysis of the factor structures of four depression questionnaires: Beck, CES-D, Hamilton, and Zung.
  • 686
...
1
2
3
4
5
...