TY  - JOUR
PY  - 2010//
TI  - Examining factorial structure and measurement invariance of the Brief Symptom Inventory (BSI)-18 among drug users
JO  - Addictive behaviors
A1  - Wang, Jichuan
A1  - Kelly, Brian C.
A1  - Booth, Brenda M.
A1  - Falck, Russel S.
A1  - Leukefeld, Carl
A1  - Carlson, Robert G.
SP  - 23
EP  - 29
VL  - 35
IS  - 1
N2  - The purpose of this study is to examine the factorial structure of the Brief Symptom Inventory 18 (BSI-18) and test its measurement invariance among different drug using populations. A total sample of 710 drug users was recruited using respondent-drive sampling (RDS) from three states: Ohio (n=248), Arkansas (n=237), and Kentucky (n=225). The results of confirmatory factor analysis (CFA) show: 1) the BSI-18 has a three-factor structure (somatization, depression, and anxiety) with an underlying second-order factor (global severity index of distress); and 2) its factorial structure and metric (factor loadings) are invariant across populations under study. However, the scalars (intercepts) of the BSI-18 items are not invariant, and the means of the latent factors also varied across populations. Our findings provide evidence of a valid factorial structure of the BSI-18 that can be readily applied to studying drug using populations.<p /> <p>Language: en</p>
LA  - en
SN  - 0306-4603
UR  - http://dx.doi.org/10.1016/j.addbeh.2009.08.003
ID  - ref1
ER  -