The brief negative symptom scale: psychometric properties.
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.
Kirkpatrick
Brian
B
Department of Psychiatry, Texas A&M College of Medicine, Temple, TX, USA. bkirkpatrick@swmail.sw.org
Strauss
Gregory P
GP
Nguyen
Linh
L
Fischer
Bernard A
BA
Daniel
David G
DG
Cienfuegos
Angel
A
Marder
Stephen R
SR
D000328:Adult; D000342:Affective Symptoms / Q000175:diagnosis* / Q000523:psychology; D010054:Brief Psychiatric Rating Scale / Q000706:statistics & numerical data*; D003245:Consensus Statements as Topic; D016002:Discriminant Analysis; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009315:National Institute of Mental Health (U.S.); D015588:Observer Variation; D011594:Psychometrics / Q000706:statistics & numerical data; D015203:Reproducibility of Results; D012559:Schizophrenia / Q000175:diagnosis*; D012565:Schizophrenic Psychology; D014481:United States