Validation of a 4-item Negative Symptom
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Larry Alphs; Robert Morlock; Cheryl Coon; Pilar Cazorla; Armin Szegedi; John Pan
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Article
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2011
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John Wiley and Sons
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English
⚖ 141 KB
The 16-item Negative Symptom Assessment (NSA-16) scale is a validated tool for evaluating negative symptoms of schizophrenia. The psychometric properties and predictive power of a four-item version (NSA-4) were compared with the NSA-16. Baseline data from 561 patients with predominant negative sympt