Foullu S, Danet F, Dumas P, Brunelin J, Travart M, Elchardus J-M, Saoud M, d'Amato T
Service hospitalo-universitaire, hôpital Edouard-Herriot, université Lyon-1, Lyon, France.
Encephale. 2008 Dec;34(6):563-9. doi: 10.1016/j.encep.2007.08.010. Epub 2008 Feb 20.
Impulsive traits are key characteristics in a lot of psychiatric disorders and are part of the "normal" behaviour spectrum. Although impulsivity is a controversial concept, some questionnaires have focused on its "dysfunctional" aspect. The Barratt Impulsive Scale (BIS-10) is the scale the most used to explore impulsiveness, but it does not explore antisocial or nonconform behaviour. The Chapman Impulsive and Nonconformity Scale (INCS) is a questionnaire of 51 items that measures the impulsivity and nonconformism. The INCS reflects "failure to internalize societal norms, lack of empathy for the pain of others, and an unrestrained yielding to impulse and self-gratification" and was originally designed to assess psychosis proneness. It has been validated in the USA, but has not yet been validated in France. Interestingly, although it was not predictive of psychosis, high scorers on INCS exceeded controls on depression, and on rates of substance abuse. Furthermore, participants scoring high on hypomanic personality scale and INCS were found to have an especially heightened risk for bipolar disorders.
To translate and determine reliability and validity of the French version of the Chapman Impulsive and Nonconformity Scale in young adults by comparison with the BIS.
Chapman Impulsive and Nonconformity Scale has been back-translated into French, and filled out by 237 students (males: 104; females: 133; mean age: 20.4 [range 19-25]). BIS-10 was used for convergent validity. Each participant completed the two scales. Reliability and validity of the French form of INCS were assessed with the internal consistency (coefficient alpha of Cronbach and the split half reliability) and the convergent validity.
In the French version of the INCS, the 51 items have high internal reliability (Cronbach's alpha=0.81 and split half reliability=0.80). Concerning the BIS, internal reliability is good (Cronbach's alpha=0.72 and split half reliability=0.66). Moreover, Pearson's r of the INCS/BIS is statistically significant (0.65) and underlines the concomitant validity of the INCS with the BIS.
The psychometric properties of the French version of the INCS are very similar to those of the English version. Hence, the INCS could provide a way to explore the two related dimensions: impulsivity and nonconformism.
冲动特质是许多精神疾病的关键特征，也是“正常”行为谱的一部分。尽管冲动性是一个有争议的概念，但一些问卷关注其“功能失调”的方面。巴拉特冲动量表（BIS - 10）是最常用于探究冲动性的量表，但它并未探究反社会或不墨守成规的行为。查普曼冲动与不墨守成规量表（INCS）是一个包含51个条目的问卷，用于测量冲动性和不墨守成规。INCS反映了“未能内化社会规范、对他人痛苦缺乏同理心以及无节制地屈从于冲动和自我满足”，最初旨在评估精神病倾向。它在美国已经得到验证，但在法国尚未得到验证。有趣的是，尽管它不能预测精神病，但INCS得分高的人在抑郁和药物滥用率方面超过了对照组。此外，在轻躁狂人格量表和INCS上得分高的参与者被发现患双相情感障碍的风险特别高。
通过与BIS比较，翻译并确定查普曼冲动与不墨守成规量表法语版在年轻成年人中的信度和效度。
查普曼冲动与不墨守成规量表已被回译为法语，并由237名学生填写（男性：104名；女性：133名；平均年龄：20.4岁[范围19 - 25岁]）。使用BIS - 10进行收敛效度分析。每位参与者完成这两个量表。通过内部一致性（克朗巴赫系数α和分半信度）和收敛效度来评估INCS法语版的信度和效度。
在INCS法语版中，51个条目具有较高的内部信度（克朗巴赫α = 0.81，分半信度 = 0.80）。关于BIS，内部信度良好（克朗巴赫α = 0.72，分半信度 = 0.66）。此外，INCS/BIS的皮尔逊相关系数r具有统计学意义（0.65），强调了INCS与BIS的伴随效度。
INCS法语版的心理测量特性与英语版非常相似。因此，INCS可以提供一种方法来探究两个相关维度：冲动性和不墨守成规。
