BACKGROUND & AIMS:
INTRODUCTION:Impulsivity is a symptom of several disorders such as personality disorder, bipolar disorder, suicidal behaviour, substance use disorders, schizophrenia...Forensic psychiatry is particularly concerned with impulsivity. It increases the risk of violence among clinical populations and figures in various instruments such as the HCR-20, the VRAG and the PCL-R to assess violence risk. It is one of many dimensions that can lead to aggressive behaviour among psychiatric patients. The Barratt Impulsiveness Scale (BIS), in its 11th version, is a 30-item self-report instrument that helps assessing impulsivity trait among normal and clinical populations. The BIS is the most commonly administered self-assessment of impulsiveness. As of March 2009, there have been 551 citations of the BIS-11 among many publications. The purpose of the present study is to examine the psychometric properties of the Arabic translation of the BIS-11th version in a sample of the general population and to identify an eventual correlation between impulsivity and socio-demographic characteristics.
PATIENTS AND METHODS:This is a prospective study conducted over a five-month period, from June to October 2010, and including 134 persons from the general population having provided their informed consent. The dialectal Arabic version was carried out by translation from English to dialectal Arabic followed by a back translation to English. Some questions were modified to be understood by a population with low education. After giving their verbal informed consent, the participants filled in the Arabic version of the BIS-11. For the illiterate, responses and quotations were performed by the interviewer. The persons were also asked to fill in socio-demographic data. Cronbach's coefficient was calculated, and then we assessed impulsivity prevalence and a correlation between demographic features and impulsivity scores. For the analyses, the statistical software SPSS 11 was used.
RESULTS:The sex ratio is 1.02. Most of the interviewed persons were 20 to 49 years old. Around 25.4% of the sample were analphabets, 32.1% had primary education, 29.1% had secondary education and 13.4% were undergraduates. The Cronbach's alpha was respectively 0.66 for attention, 0.72 for motor impulsivity, 0.61 for lack of planning and 0.78 for total impulsivity. Factor analysis identified three factors explaining the total variance of 32.6%. Impulsivity prevalence was 9%. We did not find significant correlation between demographic features and impulsivity scores.
DISCUSSION:Limits of the study: scale stability over time was not verified. This was due to the difficulty in re-inviting the same persons to fulfil the scale a second time. Because no instrument for assessing exists in Arabic, comparison was not possible between the translated Barratt's scale and the reference. Our sample represents the general population. This choice was justified in order to study an eventual correlation between impulsiveness and socio-demographic characteristics. We must mention difficulties when asking persons with low education to complete the scale, what may have caused a poorer performance of the scale due to difficulties in understanding some questions. Moreover, we had chosen a non-clinical sample. The validation of the scale could be performed in a clinical population. The measure of internal consistency (Cronbach's alpha) fell within an acceptable range (0.61-0.78), suggesting that the Arabic version of the BIS-11 is reliable. Exploratory factor analysis of the current version identified three factors, but these factors differed from those of other translated versions.
CONCLUSION:There is growing interest in the impulsivity concept. Forensic psychiatry is particularly concerned by impulsivity. In fact, it is related to psychiatric patients' violence. Impulsivity also reveals the problem of responsibility assessment in psychiatric expertise and the dangerousness of psychiatric patients. The Arabic version of the BIS-11 has a good apparent and internal consistency. This version could be useful in assessing psychiatric patient's dangerousness.
背景与目标:
简介:冲动性是几种疾病的症状,例如人格障碍,躁郁症,自杀行为,药物滥用,精神分裂症……法医精神病学特别关注冲动性。它增加了临床人群中的暴力风险,并增加了各种工具(例如HCR-20,VRAG和PCL-R)中的数字,以评估暴力风险。它是可导致精神病患者攻击行为的众多维度之一。第11版的Barratt冲动量表(BIS)是一项30项自我报告工具,可帮助评估正常人群和临床人群的冲动性状。 BIS是最常用的冲动自我评估。截至2009年3月,许多出版物中已有BIS-11的引用551次。本研究的目的是检查普通人群样本中BIS-11th版本的阿拉伯语翻译的心理计量学特性,并确定冲动性与社会人口统计学特征之间的最终关联。
病人和方法:这是一项为期五个月的前瞻性研究,时间为2010年6月至2010年10月,包括来自134个普通人群的知情同意书。方言阿拉伯语版本是通过将英语翻译为方言阿拉伯语,然后再翻译回英语来实现的。修改了一些问题,使低学历的人群可以理解。在获得口头知情同意后,与会人员填写了BIS-11的阿拉伯文版本。对于不识字的人,访调员进行了答复和报价。还要求这些人填写社会人口统计数据。计算Cronbach系数,然后评估冲动患病率以及人口统计学特征与冲动得分之间的相关性。为了进行分析,使用了统计软件SPSS 11。
结果:性别比为1.02。大多数受访者年龄在20至49岁之间。样本中约有25.4%为字母表,初等教育为32.1%,中等教育为29.1%,本科生为13.4%。克朗巴赫(Cronbach)的α值分别为:注意力的0.66,运动冲动的0.72,缺乏计划的0.61和总冲动的0.78。因子分析确定了三个因素,这些因素解释了总方差为32.6%。冲动患病率为9%。我们没有发现人口统计学特征与冲动得分之间存在显着相关性。
讨论:研究的局限性:没有验证随时间推移的水垢稳定性。这是由于很难再次邀请同一个人再次满足这一需求。由于没有阿拉伯文的评估工具,因此无法将翻译后的Barratt量表与参考文献进行比较。我们的样本代表了总人口。为了研究冲动性与社会人口统计学特征之间的最终相关性,此选择是合理的。当要求低学历者完成量表时,我们必须提到困难,是由于难以理解某些问题而导致量表性能下降的原因。此外,我们选择了非临床样本。量表的验证可以在临床人群中进行。内部一致性的度量(克伦巴赫α)落在可接受的范围内(0.61-0.78),这表明阿拉伯文版本的BIS-11是可靠的。当前版本的探索性因素分析确定了三个因素,但是这些因素与其他翻译版本的因素有所不同。
结论:人们对冲动概念的兴趣与日俱增。法医精神病学特别关注冲动性。实际上,这与精神病患者的暴力行为有关。冲动性还揭示了精神病专长中责任评估的问题以及精神病患者的危险性。 BIS-11的阿拉伯文版本具有良好的外观和内部一致性。该版本可能有助于评估精神病患者的危险性。