BACKGROUND Comprehensive family assessments in Child Protection Services should include instruments with suitable psychometric characteristics. The present study aims to provide initial evidence of the factorial structure and other psychometric properties of the Dyadic Parent-Child Interaction Coding System (DPICS). METHOD Participants were 80 mother-child dyads with children aged 4-8 who received family support from Child Protection Services in Spain. RESULTS Confirmatory factor analysis showed good fit for a four-factor solution (Praise, Questions, Clear commands and Negative talk) with 15 items. Inter-rater reliability indices were optimal. Evidence of concurrent validity found that DPICS factors were related to self-reported parenting and teacher-informed child behavior problems. CONCLUSIONS This study provides preliminary evidence of the DPICS's psychometric properties for assessing mother-child interaction within Child Protection Services. Further research with larger samples of mother-child and father-child dyads is still needed to confirm the four-factor solution.

中文翻译：

---

二元亲子交互编码系统 (DPICS)：因子结构和并发有效性。

背景 儿童保护服务中的综合家庭评估应包括具有适当心理测量特征的工具。本研究旨在为二元亲子交互编码系统 (DPICS) 的阶乘结构和其他心理测量特性提供初步证据。方法 参与者是 80 位母子二人，他们的孩子年龄在 4-8 岁之间，他们从西班牙儿童保护服务处获得家庭支持。结果 验证性因素分析显示非常适合包含 15 个项目的四因素解决方案（表扬、问题、明确命令和否定性谈话）。评价者间的可靠性指数是最佳的。并发有效性的证据发现，DPICS 因素与自我报告的养育方式和教师告知的儿童行为问题有关。结论 本研究为 DPICS 的心理测量特性提供了初步证据，用于评估儿童保护服务中的母婴互动。仍需要对更大的母子和父子二元组样本进行进一步研究，以确认四因素解决方案。