The application of the behaviour change technique taxonomy (BCTT) to parent-led language therapy intervention for children with a primary language del

大多数有言语、语言和交流需求的儿童在5岁之前就被确定了。言语和语言治疗师的早期干预对于限制对未来发展和前景的负面影响至关重要。父母参与这项干预措施至关重要，但由于其复杂性，并非所有父母都能轻松参与这一过程。行为改变技术（BCT）和视频增强观察（VEO）是培训专业人员实施干预措施时已知有效的工具。本研究的目的是发现哪些BCT被SLTs用于实施家长主导的干预措施，为幼儿SLCN;如果家长主导的干预措施的结果，为幼儿SLCN改善使用BCTT与VEO相结合;如果一组或个人的交付模式最有效的教学父母的新技能。研究分为两个阶段。第1阶段：一项观察性研究，为SLCN幼儿分配BCT，由父母主导干预。第二阶段：BCTT联合VEO对SLCN患儿实施家长主导的干预，进行团体和个体对照实验评价。将在以下条件中的每一种条件下使用三个亲子配对（n+36）来研究组和个体干预递送：对照（不使用BCTT）;实验性使用BCTT;实验性使用BCTT与VEO。干预前后的措施将评估父母对干预的看法以及在语言发展方面对儿童的好处。

The majority of children with speech, language and communication needs (SLCN) are identified before they are five years old. Early intervention by Speech and Language Therapists (SLTs) is crucial to limit the negative impact on future development and prospects. Parental involvement in this intervention is vital, but not all parents can easily engage in the process due to its complexity. Behaviour Change Techniques (BCT) and Video Enhanced Observation (VEO) are tools that are known to be effective when training professionals to implement interventions. The aim of this research is to discover which BCT are used by SLTs to implement parent-led interventions for young children with SLCN; if the outcome of parent-led interventions for young children with SLCN be improved by the use of BCTT combined with VEO; and if a group or individual mode of delivery most effective in teaching parents new skills. The research is in two phases. Phase 1: an observational study to assign BCTs to SLT parent-led interventions for young children with SLCN. Phase 2: a controlled experimental evaluation of BCTT combined with VEO in group and individual implemented parent-led intervention for young children with SLCN. Both group and individual intervention delivery will be studied with three parent-child dyads (n+36) in each of the following conditions: Control (no use of BCTT); Experimental use of BCTT; Experimental use of BCTT with VEO. Pre- and post- intervention measures will evaluate the parents' views of the intervention and the benefits to the child in terms of language development.