Analyze the psychometric properties of a new measure for the assessment of the irrational beliefs proposed by Ellis in his model of Rational-Emotive-Behavioral Therapy (REBT): the Scale of Irrational Contents and Styles-Basics (SICS-B) . The SICS-B evaluates the “contents” of the three basic irrational beliefs (Ap: Approval, Pe: Perfectionism, and Co: Comfort) in relation to the four different “styles” (inferences or processes of thought) in which they can be expressed (DEM: Demandingness, AWF: Awfulizing, FI: Frustration Intolerance, and CON: Condemnation). 259 respondents (79.5% women) undergraduates (63%) and (post)graduates (37%) between 18–63 years (M = 26.5, SD = 10.7). A set of 72 statements were drafted (half in a rational way) using a 5-point Likert scale to cover the three areas of content and the four styles of irrational thinking (3 × 4 subscales), of which to choose the three items of each area with highest psychometric indices and elaborate with them the definitive scale of 36 items. The reliability and validity study was carried out through a comparative item analysis (average inter-item correlations, item-total correlations) and internal consistency (Ordinal α) of each subscale, and confirmatory factor analyses of several models. The SICS-B presents good indices of internal consistency and content validity. Confirmatory factor analyses validate the 3 × 4 model in which the three specific contents of the irrational beliefs are integrated with the four main styles of irrational thinking as proposed by the REBT. The SICS-B is a reliable and valid short scale for the assessment of irrational beliefs.

中文翻译：

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非理性思维新衡量标准的发展和心理测量特性：非理性内容和风格的量表 - 基础（SICS-B）

分析 Ellis 在其理性-情绪-行为疗法 (REBT) 模型中提出的用于评估非理性信念的新措施的心理测量特性：非理性内容和风格基础量表 (SICS-B)。SICS-B 评估与四种不同“风格”（推理或思维过程）相关的三种基本非理性信念（Ap：认可、Pe：完美主义和 Co：舒适）的“内容”。表达（DEM：要求，AWF：令人恐惧，FI：挫折不容忍，和 CON：谴责）。259 名受访者（79.5% 女性）本科生（63%）和（后）研究生（37%）在 18-63 岁之间（M = 26.5，SD = 10.7）。使用李克特 5 点量表起草一组 72 条陈述（理性占一半），涵盖内容的三个领域和非理性思维的四种风格（3 × 4 分量表），其中选择三个项目每个具有最高心理测量指标的领域，并与他们详细说明 36 个项目的最终量表。信度和效度研究是通过每个分量表的比较项目分析（平均项目间相关性、项目-总相关性）和内部一致性（序数α）以及几个模型的验证性因素分析来进行的。SICS-B 提供了良好的内部一致性和内容有效性指标。验证性因素分析验证了 3 × 4 模型，其中非理性信念的三个具体内容与 REBT 提出的四种主要非理性思维方式相结合。SICS-B 是评估非理性信念的可靠且有效的短期量表。