To facilitate research on the cognitive model of obsessive-compulsive disorder (OCD), leaders in the field of OCD (Obsessive-Compulsive Cognitions Working Group [OCCWG]) developed and validated the Interpretation of Intrusions Inventory-31 (III-31). The current sought to adapt and validate this important measure for the Mexican population using a large sample of emerging adults (N = 457). Specifically, we evaluated the factor structure and convergent validity of the III-31 for the Mexican population. Based on a series of confirmatory factor analyses, previously established one-, two-, and three-factor models were found to be a poor fit with current data. However, an exploratory factor analysis yielded a two-factor solution, with one factor assessing the harmfulness and danger of intrusive thoughts (Harmfulness/Danger), and the other assessing exaggerated responsibility and efforts to control intrusions (Responsibility/Control). Satisfactory convergent validity was found with the severity of dysfunctional beliefs and OCD symptoms. Implications and limitations of study results are discussed.

中文翻译：

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墨西哥人口入侵清单解释的验证：跨文化差异。

为了促进对强迫症 (OCD) 认知模型的研究，强迫症领域的领导者（强迫性认知工作组 [OCCWG]）开发并验证了入侵清单 - 31（III-31）的解释。当前试图使用大量新兴成年人样本（N = 457）来适应和验证墨西哥人口的这一重要措施。具体来说，我们评估了 III-31 对墨西哥人口的因子结构和收敛效度。根据一系列验证性因素分析，发现先前建立的单因素、双因素和三因素模型与当前数据的拟合不佳。然而，探索性因素分析产生了一个双因素解决方案，一个因素评估侵入性思想的危害和危险（危害/危险），另一个评估夸大的责任和控制入侵的努力（责任/控制）。对于功能失调的信念和强迫症症状的严重程度，发现了令人满意的收敛效度。讨论了研究结果的影响和局限性。