TY - JOUR
T1 - The factorial structure of the Suicide Intent Scale: a comparative study in clinical samples from 11 European regions
AU - Antretter, E.
AU - Dunkel, D.
AU - Haring, C.
AU - Corcoran, P.
AU - De Leo, D.
AU - Fekete, S.
AU - Hawton, K.
AU - Kerkhof, A.J.F.M.
AU - Lonnqvist, J.
AU - Renberg, E.S.
AU - Schmidtke, A.
AU - van Heeringen, K.
AU - Wasserman, D.
PY - 2008
Y1 - 2008
N2 - Although the Suicide Intent Scale (SIS) is a widely used instrument in research on suicidal behavior, comparative research on the latent structure of the SIS has been neglected. To determine whether a general factor model of the SIS is supported, alternative factor models of the SIS were evaluated comparatively in 11 clinical samples. The SIS was applied as part of a structured clinical interview to patients after an episode of non-fatal suicidal behavior. The samples were drawn from 11 study centers within the frame of the WHO/EURO multicenter study on suicidal behavior. Three different two-factor and two three-factor models of the SIS were examined in each sample using principal component analysis with orthogonal Procrustes rotation. The factorial structure of the 'subjective part' of the SIS (items 9-14) was strongly supported, whereas an acceptable model fit for the 'objective part' was not found. Possible future revisions of 'objective' SIS items may be worth consideration. As a limitation, the results of the study might not generalize to other samples that use different definitions of non-fatal suicidal behavior. Copyright © 2008 John Wiley & Sons, Ltd.
AB - Although the Suicide Intent Scale (SIS) is a widely used instrument in research on suicidal behavior, comparative research on the latent structure of the SIS has been neglected. To determine whether a general factor model of the SIS is supported, alternative factor models of the SIS were evaluated comparatively in 11 clinical samples. The SIS was applied as part of a structured clinical interview to patients after an episode of non-fatal suicidal behavior. The samples were drawn from 11 study centers within the frame of the WHO/EURO multicenter study on suicidal behavior. Three different two-factor and two three-factor models of the SIS were examined in each sample using principal component analysis with orthogonal Procrustes rotation. The factorial structure of the 'subjective part' of the SIS (items 9-14) was strongly supported, whereas an acceptable model fit for the 'objective part' was not found. Possible future revisions of 'objective' SIS items may be worth consideration. As a limitation, the results of the study might not generalize to other samples that use different definitions of non-fatal suicidal behavior. Copyright © 2008 John Wiley & Sons, Ltd.
UR - https://www.scopus.com/pages/publications/49049104457
UR - https://www.scopus.com/inward/citedby.url?scp=49049104457&partnerID=8YFLogxK
U2 - 10.1002/mpr.231
DO - 10.1002/mpr.231
M3 - Article
SN - 1049-8931
VL - 17
SP - 63
EP - 79
JO - International Journal of Methods in Psychiatric Research
JF - International Journal of Methods in Psychiatric Research
IS - 2
ER -
