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Psychol Assess. 2007 Sep;19(3):309-17.

Self-Injurious Thoughts and Behaviors Interview: development, reliability, and validity in an adolescent sample.

Author information

1
Department of Psychology, Harvard University, 33 Kirkland Street, Cambridge, MA 02138, USA. nock@wjh.harvard.edu

Abstract

The authors developed the Self-Injurious Thoughts and Behaviors Interview (SITBI) and evaluated its psychometric properties. The SITBI is a structured interview that assesses the presence, frequency, and characteristics of a wide range of self-injurious thoughts and behaviors, including suicidal ideation, suicide plans, suicide gestures, suicide attempts, and nonsuicidal self-injury (NSSI). This initial study, based on the administration of the SITBI to 94 adolescents and young adults, suggested that the SITBI has strong interrater reliability (average kappa = .99, r = 1.0) and test-retest reliability (average kappa = .70, intraclass correlation coefficient = .44) over a 6-month period. Moreover, concurrent validity was demonstrated via strong correspondence between the SITBI and other measures of suicidal ideation (average kappa = .54), suicide attempt (kappa = .65), and NSSI (average kappa = .87). The authors concluded that the SITBI uniformly and comprehensively assesses a wide range of self-injury-related constructs and provides a new instrument that can be administered with relative ease in both research and clinical settings.

PMID:
17845122
DOI:
10.1037/1040-3590.19.3.309
[Indexed for MEDLINE]

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