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Psychometric assessment of scales measuring the individual propensity to intervene against intimate partner violence

Conference contribution
Authors Helen Alfredsson
Karl Ask
Chris von Borgstede
Published in International conference of EAPL (European Association of Psychology and Law)
Publication year 2014
Published at Department of Psychology
Language en
Keywords intimate partner violence, psychometric assessment, propensity to intervene
Subject categories Applied Psychology

Abstract

Public interventions against intimate partner violence (IPV) may be essential for the prevention of the problem. Yet, little research has focused on psychological barriers that prevent people from intervening. The objective of this study was to design and assess measurement instruments that accurately measure the levels of the individual propensity to intervene against IPV. Two cross-sectional studies were conducted using survey method. The two surveys were completed by 169 and 142 individuals, respectively, from the adult Swedish general population. To determine the latent factors of the scales, exploratory factor analysis (EFA) was performed on the first data set, and confirmatory factor analysis (CFA) on the second data set. The EFA identified six scales: cause attribution (6 items), problem awareness (6 items), negative affective response (6 items), personal norms (4 items), social descriptive norms (7 items), and social prescriptive norms (7 items). In the CFA, there were no items with cross-loading onto multiple factors, supporting the distinctiveness of the measured constructs. Goodness-of-fit indices indicated that the factor solutions fit the data at acceptable levels (CFI = 0.97–0.99, RMSEA = 0.053–0.098). The reliability of the six scales ranged from acceptable to excellent (Cronbach’s alpha: 0.60–0.92). The results indicate that the scales target individual psychological barriers against intervening against IPV. The scales are brief and suitable for use in community efforts that aim to improve public interventions against intimate partner violence.

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