Self-critical rumination is a negative and repetitive self-thinking process related to different disorders and negative psychological outcomes such as emotion dysregulation. The objectives of this study are twofold: (a) to examine the factor structure of the Spanish version of the Self-Critical Rumination Scale (SCRS), providing further evidence on its construct validity, and (b), to explore the mediator role of self-critical rumination between emotion dysregulation and psychopathology. A sample of 431 Spanish participants were recruited and completed online questionnaires. Confirmatory factor analysis, mediation analysis, and Pearson's correlations were conducted. A single factor structure was confirmed, and the SCRS showed good psychometric properties (Cronbach's alpha was 0.911). Significant correlations were found between the SCRS and related constructs (self-criticism, self-compassion, difficulties in emotion regulation, and psychopathology). Mediation analysis indicated that self-critical rumination plays a mediator role between emotion dysregulation and psychopathology. These results provide further evidence of the construct validity of the SCRS and extend our understanding of the mechanisms that underlie the relationship between emotion dysregulation and psychopathology. These findings have key clinical implications suggesting that ruminative self-criticism could be potentially considered a transdiagnostic factor and a relevant target in the therapeutic process.

自我批评的反刍是一种消极和重复的自我思考过程，与不同的疾病和消极的心理结果（如情绪失调）有关。本研究的目的是双重的：(a) 检查西班牙版本的自我批评反刍量表 (SCRS) 的因子结构，为其结构效度提供进一步的证据，以及 (b) 探索情绪失调和精神病理学之间的自我批判反思。招募了 431 名西班牙参与者的样本并完成了在线问卷调查。进行了验证性因素分析、中介分析和 Pearson 相关性分析。单因素结构得到证实，SCRS 显示出良好的心理测量特性（Cronbach's alpha 为 0.911）。在 SCRS 和相关结构（自我批评、自我同情、情绪调节困难和精神病理学）之间发现了显着的相关性。中介分析表明，自我批评反刍在情绪失调和精神病理学之间起中介作用。这些结果进一步证明了 SCRS 的结构有效性，并扩展了我们对情绪失调和精神病理学之间关系的潜在机制的理解。这些发现具有重要的临床意义，表明反刍式自我批评可能被视为跨诊断因素和治疗过程中的相关目标。中介分析表明，自我批评反刍在情绪失调和精神病理学之间起中介作用。这些结果为 SCRS 的结构有效性提供了进一步的证据，并扩展了我们对情绪失调和精神病理学之间关系的潜在机制的理解。这些发现具有重要的临床意义，表明反刍式自我批评可能被视为跨诊断因素和治疗过程中的相关目标。中介分析表明，自我批评反刍在情绪失调和精神病理学之间起中介作用。这些结果进一步证明了 SCRS 的结构有效性，并扩展了我们对情绪失调和精神病理学之间关系的潜在机制的理解。这些发现具有重要的临床意义，表明反刍式自我批评可能被视为跨诊断因素和治疗过程中的相关目标。