EXPO-12: Development and validation of the Exposure to Violent Extremism Scale.

IF 2.4 2区 心理学 Q1 CRIMINOLOGY & PENOLOGY
C. Clemmow, Bettina Rottweiler, P. Gill
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引用次数: 1

Abstract

OBJECTIVE. This study details the development and validation of the 12-item Exposure to Violent Extremism Scale (EXPO-12). We aimed to undertake a transparent and robust process of scale development to present a tool to facilitate research on the relationship between exposure and violent extremism. METHOD: First, we generated an initial item pool and evaluated items via expert feedback ( n = 6) and a task designed to assess item comprehension ( n = 13; Study 1). Second, we explored the underlying factor structure with exploratory factor analysis (EFA) and evaluated item characteristics with item response theory (IRT) in a representative sample of the UK population ( n = 1, 509; Study 2). Finally, we sought to replicate the factor structure proposed by Study 2 via confirmatory factor analysis (CFA) and examined convergent validity with a related construct, violent extremist intentions ( n = 1, 475; Study 3). RESULTS: Study 1 resulted in a preliminary pool of 40 items. Study 2 used EFA to establish a four-factor structure consisting of 21 items. IRT further reduced the item pool by evaluating differential item functioning , discrimination, and location parameters, resulting in EXPO-12. Study 3 replicated the factor structure proposed in Study 2 via CFA. EXPO-12 demonstrated good convergent validity with violent extremist intentions. CONCLUSION: EXPO-12 is presented as a preliminarily validated measure of the concept, alongside it’s limitations. The scale’s main implication is as a tool to facilitate research to unpack the complexity and nuances of the relationship between exposure and violent extremism.
EXPO-12:暴力极端主义暴露量表的开发与验证。
目标。本研究详细介绍了12项暴力极端主义暴露量表(EXPO-12)的开发和验证。我们的目标是开展一个透明而有力的规模开发过程,以提供一个工具,以促进对暴露与暴力极端主义之间关系的研究。方法:首先,我们生成了一个初始的项目池,并通过专家反馈(n = 6)和一个旨在评估项目理解能力的任务(n = 13;研究1)。其次,我们利用探索性因素分析(EFA)探索了潜在因素结构,并利用项目反应理论(IRT)评估了英国人口代表性样本(n = 1,509;研究2)。最后,我们试图通过验证性因素分析(CFA)来复制研究2提出的因素结构,并使用相关结构——暴力极端主义意图(n = 1,475;研究3)结果:研究1产生了40个项目的初步库。研究2采用EFA方法建立了一个包含21个项目的四因素结构。IRT通过评估不同的项目功能、歧视和位置参数进一步减少了项目池,从而产生了EXPO-12。研究3通过CFA验证了研究2提出的因子结构。世博会与暴力极端主义意图表现出良好的收敛有效性。结论:EXPO-12是对这一概念的初步验证,同时也有其局限性。该量表的主要含义是作为一种工具来促进研究,以揭示暴露与暴力极端主义之间关系的复杂性和细微差别。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
4.90
自引率
0.00%
发文量
68
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