TY - JOUR
T1 - Psychometric properties of the BASIS-24 (c) (Behaviour and Symptom Identification Scale-revised) Mental Health Outcome Measure
AU - Cameron, Isobel Mary
AU - Cunningham, Lori
AU - Crawford, Judith
AU - Eagles, John
AU - Eisen, S. V.
AU - Lawton, Kenneth
AU - Naji, Simon A
AU - Hamilton, Ross
PY - 2007/3
Y1 - 2007/3
N2 - Objective. Outcome measurement in mental health services is an area of considerable clinical interest and policy priority. This study sought to assess the Behaviour and Symptom Identification Scale-24 (BASIS-24(C)), a brief, patient self-reported measure of psychopathology and functioning, in a UK sample, including establishing population norms for comparative purposes. Methods. Participants were 588 adults recruited from psychiatric inpatient, outpatient and primary care settings; and 630 adults randomly sampled from primary care lists who completed the BASIS-24(C), and the Brief Symptom Inventory (BSI) at two time points. Results. BASIS-24(C) demonstrated adequate reliability (coefficient a values for combined clinical sample across subscales ranged from 0.75 to 0.91), validity and responsiveness to change (effect size for change of the BASIS-24(C) was 0.56 compared with 0.48 for BSI Global Severity Index). Population norms were established for the general population and adult in-patients (at in-take). The scale proved straightforward to complete across clinical settings. Variable rates of questionnaire distribution across clinical settings highlighted the ongoing challenge of incorporating outcome measures in clinical settings. Conclusion. BASIS-24(C) is a brief, easily administered, self-complete measure of mental well-being and functioning that adequately meets the requirements of reliability, validity and responsiveness to change required of an outcome measure.
AB - Objective. Outcome measurement in mental health services is an area of considerable clinical interest and policy priority. This study sought to assess the Behaviour and Symptom Identification Scale-24 (BASIS-24(C)), a brief, patient self-reported measure of psychopathology and functioning, in a UK sample, including establishing population norms for comparative purposes. Methods. Participants were 588 adults recruited from psychiatric inpatient, outpatient and primary care settings; and 630 adults randomly sampled from primary care lists who completed the BASIS-24(C), and the Brief Symptom Inventory (BSI) at two time points. Results. BASIS-24(C) demonstrated adequate reliability (coefficient a values for combined clinical sample across subscales ranged from 0.75 to 0.91), validity and responsiveness to change (effect size for change of the BASIS-24(C) was 0.56 compared with 0.48 for BSI Global Severity Index). Population norms were established for the general population and adult in-patients (at in-take). The scale proved straightforward to complete across clinical settings. Variable rates of questionnaire distribution across clinical settings highlighted the ongoing challenge of incorporating outcome measures in clinical settings. Conclusion. BASIS-24(C) is a brief, easily administered, self-complete measure of mental well-being and functioning that adequately meets the requirements of reliability, validity and responsiveness to change required of an outcome measure.
KW - outcome measurement
KW - psychiatry
KW - mental health
KW - randomized controlled-trial
KW - care
KW - UK
UR - http://www.scopus.com/inward/record.url?scp=33847770063&partnerID=8YFLogxK
U2 - 10.1080/13651500600885531
DO - 10.1080/13651500600885531
M3 - Article
SN - 1365-1501
VL - 11
SP - 36
EP - 43
JO - International Journal of Psychiatry in Clinical Practice
JF - International Journal of Psychiatry in Clinical Practice
IS - 1
ER -