Centre Expert pour les Troubles Bipolaires de Nancy, Pôle de Psychiatrie et Psychologie Clinique - Centre Psychothérapique de Nancy, 54520 Laxou, France; Université de Lorraine, France; Fondation Fondamental, Créteil, France.
Centre Expert pour les Troubles Bipolaires de Nancy, Pôle de Psychiatrie et Psychologie Clinique - Centre Psychothérapique de Nancy, 54520 Laxou, France; Université de Lorraine, France; Fondation Fondamental, Créteil, France.
J Affect Disord. 2019 Jun 15;253:203-209. doi: 10.1016/j.jad.2019.04.060. Epub 2019 Apr 9.
Impulsivity is commonly assessed using the Barratt Impulsiveness Scale (BIS-11). Some studies challenged the reliability of its three dimensional structure and proposed a bi-dimensional structure.
The psychometric reliability of the BIS-11 scale was studied in a sample of 580 euthymic bipolar patients. An alternative structure of the scale was conceived, using confirmatory factorial analysis (CFA) in the first half (N = 290) and cross-validated in the second half of our sample. Associations between the newly defined shortened scale and predefined clinical variables were computed.
The original three dimensional structure did not fit in our sample according to statistical criteria in CFA. A 12 items Impulsivity Scale (IS-12) was designed with strong indices of fitting in the first half of our sample and replicated in the second half of our sample. The IS-12 evidences two dimensions: "behavioral impulsivity" and "cognitive impulsivity". Associations between "behavioral impulsivity" and both presence of past suicide attempts and number of suicide attempts were observed. Substance misuse was strongly associated with both subscores of the new scale.
The rating of the items assessing the two dimensions of the IS-12 is reversed. The population is restricted to euthymic bipolar patients.
The Impulsivity Scale assesses two distinct dimensions named behavioral and cognitive impulsivity. It was reliable and valid in our sample and associated with the existence of suicidal behavior and with substance misuse (alcohol and cannabis). Further studies are needed to demonstrate its predictive validity.
冲动性通常使用巴雷特冲动量表（BIS-11）进行评估。一些研究对其三维结构的可靠性提出了质疑，并提出了二维结构。
在 580 名稳定期双相情感障碍患者的样本中研究了 BIS-11 量表的心理测量学可靠性。使用验证性因素分析（CFA）在我们样本的前半部分（N=290）构思了该量表的替代结构，并在后半部分进行了交叉验证。计算了新定义的缩短量表与预定义临床变量之间的关联。
根据 CFA 的统计标准，原始的三维结构在我们的样本中不适用。设计了一个包含 12 个项目的冲动量表（IS-12），在前半部分我们的样本中具有较强的拟合指标，并在样本的后半部分得到复制。IS-12 有两个维度：“行为冲动”和“认知冲动”。观察到“行为冲动”与过去自杀尝试的存在和自杀尝试的次数之间存在关联。物质滥用与新量表的两个分量表都有很强的关联。
评估 IS-12 两个维度的项目的评分是反转的。该人群仅限于稳定期的双相情感障碍患者。
冲动量表评估了两个不同的维度，分别称为行为和认知冲动。它在我们的样本中是可靠和有效的，并与自杀行为的存在以及物质滥用（酒精和大麻）有关。需要进一步的研究来证明其预测效度。
