The Dula Dangerous Driving Index: an investigation of reliability and validity across cultures.
The Dula Dangerous Driving Index: an investigation of reliability and validity across cultures.
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DOI：
10.1016/j.aap.2007.09.019
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发表时间：
2008-03
期刊：
影响因子：
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通讯作者：
J. Willemsen;C. Dula;Frédéric Declercq;P. Verhaeghe
中科院分区：
文献类型：
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作者：
J. Willemsen;C. Dula;Frédéric Declercq;P. Verhaeghe
本研究的目的是进一步建立杜拉危险驾驶指数（DDDI）的效度和信度。该工具的可靠性和有效性进行了研究，通过比较数据从美国大学样本，美国社区样本，比利时交通违法者的样本。探索性和验证性因素分析支持存在一个四因素结构的项目酒后驾驶形成一个单独的规模，除了风险驾驶，负面认知/情绪驾驶和侵略性驾驶的项目。多组验证性因素分析与模型约束支持DDDI的效度。相互关系显示，DDDI分量表是密切相关的，并在所有三个样本中发现的措施的单维性。这表明DDDI总分可用作危险驾驶的综合衡量标准。然而，分量表的有效性在比利时样本中得到了证明，因为特定的交通肇事者群体（因酒后驾驶、侵略性驾驶、超速驾驶而被定罪）在相应的分量表（酒后驾驶、侵略性驾驶和危险驾驶）上得分较高，这表明区分分量表在临床上是有意义的。
The aim of this study is to further establish the validity and reliability of the Dula Dangerous Driving Index (DDDI). The reliability and validity of the instrument was investigated by comparing data from a US university sample, a US community sample, and a sample of Belgian traffic offenders. Exploratory and confirmatory factor analysis supported the presence of a four-factor structure with items for Drunk Driving forming a separate scale apart from items for Risky Driving, Negative Cognitive/Emotional Driving and Aggressive Driving. A multi-group confirmatory factor analysis with model constraints supported the validity of the DDDI. Inter-correlations revealed that the DDDI subscales are closely interrelated and uni-dimensionality of the measure was found in all three samples. This suggests the DDDI Total score can be used as a composite measure for dangerous driving. However, the validity of the subscales was demonstrated in the Belgian sample, as specific traffic offender groups (convicted for drunk driving, aggressive driving, speeding) scored higher on corresponding scales (Drunk Driving, Aggressive Driving, and Risky Driving, respectively), indicating that it is clinically meaningful to differentiate the subscales.