The Brief Negative Symptom Scale (BNSS): Independent validation in a large sample of Italian patients with schizophrenia
Autor: | MUCCI, Armida, GALDERISI, Silvana, MERLOTTI, Eleonora, BUCCI, Paola, PIEGARI, Giuseppe, MAJ, Mario, Rossi, A., Rocca, P., Chieffi, M., Vignapiano, A., Campana, Teresa, De Simone, Stefania, Gallo, Olimpia, Giugliano, Rosa, LUCIANO, Mario, Montefusco, Valentina, Plescia, Giuseppe, Sampogna, Gaia, Andriola, Ileana, Porcelli, Stefano, Galluzzo, Alessandro, Signorini, Giulia, Bulgari, Viola, Pinna, Federica, Signorelli, Maria Salvina, di Giannantonio, Massimo, Bellomo, Antonello, Calcagno, Pietro, Roncone, Rita, Stratta, Paolo, Buoli, Massimiliano, Zeppegno, Patrizia, Giannunzio, Valeria, Marchesi, Carlo, Dell'Osso, Liliana, Squarcione, Chiara, Comparelli, Anna, Niolu, Cinzia, Monteleone, Palmiero, Goracci, Arianna, Montemagni, Cristiana |
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Přispěvatelé: | Mucci, Armida, Galderisi, Silvana, Merlotti, Eleonora, Rossi, A., Rocca, P., Bucci, Paola, Piegari, Giuseppe, Chieffi, M., Vignapiano, A., Maj, Mario, Campana, Teresa, De Simone, Stefania, Gallo, Olimpia, Giugliano, Rosa, Luciano, Mario, Montefusco, Valentina, Plescia, Giuseppe, Sampogna, Gaia, Andriola, Ileana, Porcelli, Stefano, Galluzzo, Alessandro, Signorini, Giulia, Bulgari, Viola, Pinna, Federica, Signorelli, Maria Salvina, di Giannantonio, Massimo, Bellomo, Antonello, Calcagno, Pietro, Roncone, Rita, Stratta, Paolo, Buoli, Massimiliano, Zeppegno, Patrizia, Giannunzio, Valeria, Marchesi, Carlo, Dell'Osso, Liliana, Squarcione, Chiara, Comparelli, Anna, Niolu, Cinzia, Monteleone, Palmiero, Goracci, Arianna, Montemagni, Cristiana |
Jazyk: | angličtina |
Rok vydání: | 2015 |
Předmět: |
Adult
Male medicine.medical_specialty Psychometrics Intraclass correlation Asociality Negative symptom Avolition Negative symptoms Poor emotion expression Primary negative symptoms Schizophrenia Psychiatry and Mental Health Medicine (all) 03 medical and health sciences 0302 clinical medicine Brief Psychiatric Rating Scale medicine Humans Affective Symptoms Psychiatry Settore MED/25 - Psichiatria Discriminant validity Anhedonia Reproducibility of Results Middle Aged Female Italy Schizophrenic Psychology 030227 psychiatry Convergent validity medicine.symptom Primary negative symptom Psychology 030217 neurology & neurosurgery Clinical psychology |
ISSN: | 0924-9338 |
Popis: | BackgroundThe Brief Negative Symptom Scale (BNSS) was developed to address the main limitations of the existing scales for the assessment of negative symptoms of schizophrenia. The initial validation of the scale by the group involved in its development demonstrated good convergent and discriminant validity, and a factor structure confirming the two domains of negative symptoms (reduced emotional/verbal expression and anhedonia/asociality/avolition). However, only relatively small samples of patients with schizophrenia were investigated. Further independent validation in large clinical samples might be instrumental to the broad diffusion of the scale in clinical research.MethodsThe present study aimed to examine the BNSS inter-rater reliability, convergent/discriminant validity and factor structure in a large Italian sample of outpatients with schizophrenia.ResultsOur results confirmed the excellent inter-rater reliability of the BNSS (the intraclass correlation coefficient ranged from 0.81 to 0.98 for individual items and was 0.98 for the total score). The convergent validity measures had r values from 0.62 to 0.77, while the divergent validity measures had r values from 0.20 to 0.28 in the main sample (n = 912) and in a subsample without clinically significant levels of depression and extrapyramidal symptoms (n = 496). The BNSS factor structure was supported in both groups.ConclusionsThe study confirms that the BNSS is a promising measure for quantifying negative symptoms of schizophrenia in large multicenter clinical studies. |
Databáze: | OpenAIRE |
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