BACKGROUND The lack of a reporting guideline for scaling of evidence-based practices (EBPs) studies has prompted the registration of the Standards for reporting studies assessing the impact of scaling strategies of EBPs (SUCCEED) with EQUATOR Network. The development of SUCCEED will be guided by the following main steps recommended for developing health research reporting guidelines. METHODS Executive Committee. We established a committee composed of members of the core research team and of an advisory group. Systematic review. The protocol was registered with the Open Science Framework on 29 November 2019 (https://osf.io/vcwfx/). We will include reporting guidelines or other reports that may include items relevant to studies assessing the impact of scaling strategies. We will search the following electronic databases: EMBASE, PsycINFO, Cochrane Library, CINAHL, Web of Science, from inception. In addition, we will systematically search websites of EQUATOR and other relevant organizations. Experts in the field of reporting guidelines will also be contacted. Study selection and data extraction will be conducted independently by two reviewers. A narrative analysis will be conducted to compile a list of items for the Delphi exercise. CONSENSUS PROCESS We will invite panelists with expertise in: development of relevant reporting guidelines, methodologists, content experts, patient/member of the public, implementers, journal editors, and funders. We anticipated that three rounds of web-based Delphi consensus will be needed for an acceptable degree of agreement. We will use a 9-point scale (1 = extremely irrelevant to 9 = extremely relevant). Participants' response will be categorized as irrelevant (1-3), equivocal (4-6) and relevant (7-9). For each item, the consensus is reached if at least 80% of the participants' votes fall within the same category. The list of items from the final round will be discussed at face-to-face consensus meeting. Guideline validation. Participants will be authors of scaling studies. We will collect quantitative (questionnaire) and qualitative (semi-structured interview) data. Descriptive analyses will be conducted on quantitative data and constant comparative techniques on qualitative data. DISCUSSION Essential items for reporting scaling studies will contribute to better reporting of scaling studies and facilitate the transparency and scaling of evidence-based health interventions.

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健康干预规模研究报告的基本项目（成功）：系统评价和德尔菲过程的协议。

背景 由于缺乏基于证据的实践（EBP）研究扩展的报告指南，促使在 EQUATOR 网络上注册评估 EBP 扩展策略（SUCCEED）影响的报告研究标准。SUCCEED 的发展将遵循以下为制定健康研究报告指南而建议的主要步骤。方法执行委员会。我们成立了一个由核心研究团队成员和顾问小组成员组成的委员会。系统审查。该协议于 2019 年 11 月 29 日在开放科学框架中注册 (https://osf.io/vcwfx/)。我们将包括报告指南或其他报告，其中可能包括与评估扩展策略影响的研究相关的项目。我们将从一开始就检索以下电子数据库：EMBASE、PsycINFO、Cochrane Library、CINAHL、Web of Science。此外，我们还会系统地搜索EQUATOR等相关组织的网站。还将联系报告指南领域的专家。研究选择和数据提取将由两名评审员独立进行。将进行叙述性分析，以编制德尔菲练习的项目清单。共识过程我们将邀请具有以下专业知识的小组成员：相关报告指南的制定、方法学家、内容专家、患者/公众、实施者、期刊编辑和资助者。我们预计需要三轮基于网络的德尔菲共识才能达成可接受的协议程度。我们将使用 9 分制（1 = 极其不相关，9 = 极其相关）。参与者的回答将被分为不相关（1-3）、模棱两可（4-6）和相关（7-9）。对于每个项目，如果至少 80% 的参与者投票属于同一类别，则达成共识。最后一轮的项目清单将在面对面的共识会议上进行讨论。指南验证。参与者将是规模研究的作者。我们将收集定量（问卷）和定性（半结构化访谈）数据。将对定量数据进行描述性分析，并对定性数据进行持续比较技术。讨论 报告扩展研究的基本项目将有助于更好地报告扩展研究，并促进循证健康干预措施的透明度和扩展。