Parasuicide: The value of suicidal intent and various motives as predictors of future suicidal behaviour

The factorial structure of the Suicide Intent Scale: a comparative study in clinical samples from 11 European regions

“…In three studies, the explained total variance was not reported (Wetzel, 1977;Mieczkowski et al, 1993;Diaz et al, 2003). Internal consistency estimates (Cronbach's α) of the extracted factors, if mentioned, ranged between α = 0.64 (Spirito et al, 1996) and α = 0.90 (Mieczkowski et al, 1993;Hjelmeland et al, 1998).…”

“…Although Beck et al (1974) proposed a clear hypothetical structure of the SIS, no study yet examined the latent structure of the SIS with theory testing methods. The eight existing factor analytic studies of the SIS solely applied exploratory techniques to investigate the latent structure of the SIS Wetzel, 1977;Mieczkowski et al, 1993;Kingsbury, 1993;Spirito et al, 1996;Hjelmeland et al, 1998;Niméus et al, 2002;Diaz et al, 2003). Table 1 summarizes the major characteristics and the results of the previous factor analytic studies of the SIS.…”

“…First, the SIS was investigated as a predictor for future fatal and non-fatal suicidal behavior (Beck et al, 1989;Hjelmeland et al, 1998;Tejedor et al, 1999;Brown et al, 2004;Kerkhof and Arensman, 2004;Suominen et al, 2004;Baca-Garcia et al, 2005;. Second, other studies examined the relationships between the SIS and several variables associated with non-fatal suicidal behavior (e.g.…”

“…In one study (Wetzel, 1977), a one item factor was extracted and retained in the rotated SIS solution. Sample sizes ranged from N = 48 (person item ratio = 3.2) (Wetzel, 1977) to N = 776 (person item ratio = 51.7) (Hjelmeland et al, 1998). Threshold item loadings were regarded as salient for values as low as a = 0.40 to a = 0.55, even though none of the studies reported criteria for acceptable or non-acceptable item cross-loadings on more than one factor (e.g.…”

Evaluation of a modified interview version and of a self-rating version of the Suicide Assessment Scale

“…This scale has lately been used in several studies, and high scores in the entire scale, or parts of it, might be predictive of suicide in different psychiatric populations [8][9][10][11]. In one study, Hjelmeland et al [12] were not able to find SIS-differences between suicides and non-suicides among suicide attempters. The self-rated Beck Hopelessness Scale (BHS) measuring pessimism towards the future does however not seem to predict suicide in suicide attempters, but rather to be related to ratings of depression [13].…”