Development and evidence of validity of a multidimensional scale of suicide risk and protective factors in a Chilean context

Suicide is a major public health concern, making risk assessment essential for its prevention. Although there are multiple related factors, there are few psychometric tools for the joint measurement of both protective and risk factors, making a multidimensional understanding of suicidal behaviour difficult. On this basis, the present study aims to develop a quickly applicable, multidimensional assessment approach to evaluate both risk and protective factors. A cross-sectional, instrumental design was used, together with a nonprobabilistic, availability sampling, with two samples of young adults over 18 years of age (n=405 and n=117). The final measure is composed by 25 items and 5 dimensions (i.e. suicidal ideation, emotion-focused coping strategies, self-esteem, perceived social support and expectations towards the future). Results show good model fit, using ESEM, adequate levels of reliability (omega>.8) (alpha > 0.7). In addition, there was evidence of validity based on the relationship with other variables and metric invariance between men and women. Results suggest that the scores are reliable and present evidence of validity for their interpretation in equivalent populations.