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Schizophr Bull. 2011 Mar;37(2):300-5. doi: 10.1093/schbul/sbq059. Epub 2010 Jun 17.

The brief negative symptom scale: psychometric properties.

Author information

1
Department of Psychiatry, Texas A&M College of Medicine, Temple, TX, USA. bkirkpatrick@swmail.sw.org

Abstract

The participants in the NIMH-MATRICS Consensus Development Conference on Negative Symptoms recommended that an instrument be developed that measured blunted affect, alogia, asociality, anhedonia, and avolition. The Brief Negative Symptom Scale (BNSS) is a 13-item instrument designed for clinical trials and other studies that measures these 5 domains. The interrater, test-retest, and internal consistency of the instrument were strong, with respective intraclass correlation coefficients of 0.93 for the BNSS total score and values of 0.89-0.95 for individual subscales. Comparisons with positive symptoms and other negative symptom instruments supported the discriminant and concurrent validity of the instrument.

PMID:
20558531
PMCID:
PMC3044634
DOI:
10.1093/schbul/sbq059
[Indexed for MEDLINE]
Free PMC Article

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