Validation of the ToMas-child Scale for the Assessment of the Theory of Mind in a Group of Spanish Speaking Children Aged 3 to 7 Years from Spain

This study aimed to determine the psychometric properties of the Theory of Mind assessment scale in children (ToMas-child). Two hundred and fifty-two Spanish children from 3 to 7 years were assessed in school settings. Rasch analysis showed the ToMas-child is a unidimensional scale valid for the assessment of the main components of the ToM in children. Data of hierarchical distribution of six items (seven tasks) are discussed as milestones in the latent construct of ToM development in childhood, and construct validity of the scale is examined. A reliability index of PSI = 0.7 indicated the usefulness of the scale as a screening tool.

本研究旨在探明儿童版心理理论（Theory of Mind）评估量表（ToMas-child）的心理测量学特性。研究共招募252名年龄介于3至7岁的西班牙儿童，于校园环境中完成评估。拉什分析（Rasch analysis）结果表明，ToMas-child为单维量表，可有效评估儿童心理理论的核心构成要素。本研究探讨了该量表6个条目（含7项任务）的层级分布数据，将其视作儿童期心理理论发展潜在结构的里程碑，并对该量表的结构效度进行了检验。该量表的信度指标PSI=0.7，表明其可作为筛查工具具备实际应用价值。