title: Mapping non suicidal self-injury in adolescence: Development and confirmatory factor analysis of the Impulse, Self-harm and Suicide Ideation Questionnaire for Adolescents (ISSIQ-A).
abstract: Non-suicidal self-injury (NSSI) is the deliberate, self-inflicted destruction of body tissue without suicidal intent and an important clinical phenomenon. Rates of NSSI appear to be disproportionately high in adolescents and young adults, and is a risk factor for suicidal ideation and behavior. The present study reports the psychometric properties of the Impulse, Self-harm and Suicide Ideation Questionnaire for Adolescents (ISSIQ-A), a measure designed to comprehensively assess the impulsivity, NSSI behaviors and suicide ideation. An additional module of this questionnaire assesses the functions of NSSI. Results of Confirmatory Factor Analysis (CFA) of the scale on 1722 youths showed items' suitability and confirmed a model of four different dimensions (Impulse, Self-harm, Risk-behavior and Suicide ideation) with good fit and validity. Further analysis showed that youth׳s engagement in self-harm may exert two different functions: to create or alleviate emotional states, and to influence social relationships. Our findings contribute to research and assessment on non-suicidal self-injury, suggesting that the ISSIQ-A is a valid and reliable measure to assess impulse, self-harm and suicidal thoughts, in adolescence.
authors.affiliation: Division of Psychology, Educational Sciences Department, University of Azores, Azores, Portugal Rua Mãe Deus, Ponta Delgada 9500-321 PONTA DELGADA, Apartado 1422, PT-9501-801 Ponta Delgada, Açores, Portugal; CINEICC - Faculty of Psychology and Educational Sciences, University of Coimbra, Portugal. Electronic address: ccarvalho@uac.pt.
authors.forename: Célia Barreto
authors.initials: CB
authors.lastname: Carvalho
authors.affiliation: Division of Psychology, Educational Sciences Department, University of Azores, Azores, Portugal Rua Mãe Deus, Ponta Delgada 9500-321 PONTA DELGADA, Apartado 1422, PT-9501-801 Ponta Delgada, Açores, Portugal.
authors.forename: Carolina
authors.initials: C
authors.lastname: Nunes
authors.affiliation: CINEICC - Faculty of Psychology and Educational Sciences, University of Coimbra, Portugal.
authors.forename: Paula
authors.initials: P
authors.lastname: Castilho
authors.affiliation: Division of Psychology, Educational Sciences Department, University of Azores, Azores, Portugal Rua Mãe Deus, Ponta Delgada 9500-321 PONTA DELGADA, Apartado 1422, PT-9501-801 Ponta Delgada, Açores, Portugal; CINEICC - Faculty of Psychology and Educational Sciences, University of Coimbra, Portugal.
authors.forename: Carolina
authors.initials: C
authors.lastname: da Motta
authors.affiliation: Division of Psychology, Educational Sciences Department, University of Azores, Azores, Portugal Rua Mãe Deus, Ponta Delgada 9500-321 PONTA DELGADA, Apartado 1422, PT-9501-801 Ponta Delgada, Açores, Portugal.
authors.forename: Suzana
authors.initials: S
authors.lastname: Caldeira
authors.affiliation: CINEICC - Faculty of Psychology and Educational Sciences, University of Coimbra, Portugal.
authors.forename: José
authors.initials: J
authors.lastname: Pinto-Gouveia
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior; D000328:Adult; D000067290:Behavior Rating Scale / Q000706:statistics & numerical data*; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D007175:Impulsive Behavior; D008297:Male; D011594:Psychometrics; D015203:Reproducibility of Results; D012309:Risk-Taking; D016728:Self-Injurious Behavior / Q000523:psychology*; D059020:Suicidal Ideation; D011795:Surveys and Questionnaires; D055815:Young Adult
keywords: Adolescence; CFA; Impulsivity; NSSI; Psychometric properties; Suicide ideation