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The Self‐Injury Questionnaire: evaluation of the psychometric properties in a clinical population
Author(s) -
SANTA MINA E. E.,
GALLOP R.,
LINKS P.,
HESLEGRAVE R.,
PRINGLE D.,
WEKERLE C.,
GREWAL P.
Publication year - 2006
Publication title -
journal of psychiatric and mental health nursing
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.69
H-Index - 63
eISSN - 1365-2850
pISSN - 1351-0126
DOI - 10.1111/j.1365-2850.2006.00944.x
Subject(s) - cronbach's alpha , clinical psychology , construct validity , psychology , population , reliability (semiconductor) , internal consistency , harm , scale (ratio) , psychometrics , psychiatry , medicine , social psychology , environmental health , physics , quantum mechanics , power (physics)
This paper presents the findings, from a clinical study, on the reliability and validity of a new measure for intentions in self‐harm behaviour, the Self‐Injury Questionnaire (SIQ). Eighty‐three patients, who had presented to an emergency department with an episode of self‐harm/suicidal behaviour, were given the SIQ as part of a battery of measures to evaluate differentiation in self‐harm intentions based upon a history of childhood physical and/or sexual abuse. The internal consistency for the total scale was strong (α = 0.83). Construct validity demonstrated significant correlations with standardized measures. A principle component analysis of responses yielded a five‐factor solution with ‘affect regulation’ items loading on the first factor. Cronbach's alphas were adequate for each subscale (α = 0.72–0.77). These preliminary findings indicate that the SIQ is a valid and reliable measure for research in an acute self‐harming population.