📚 UK School Peer Mental Health Support Pilot: Evaluation Results | 英国校园同伴心理健康支持试点评估结果
Peer mental health support is now one of the most widely discussed elements of the "whole-school approach" in England. Between 2022 and 2024, a national pilot tested structured peer support programmes in a sample of English secondary schools, and the evaluation reports give students of Psychology, Sociology and Health and Social Care an unusually rich real-world case study of applied research methods.
同伴心理健康支持目前是英格兰"全校整体干预模式"中最受关注的环节之一。2022 至 2024 年间，一项全国性试点在英格兰部分中学中测试了结构化同伴支持项目，其评估报告为心理学、社会学及健康与社会照护方向的学生提供了一个极其丰富的、真实情境下的研究方法案例。
1. Policy Background | 政策背景
The immediate driver behind the pilot was the gap between need and capacity. NHS survey data indicate that roughly one in five children aged 8-16 in England meets the threshold for a probable mental disorder, yet specialist Child and Adolescent Mental Health Services (CAMHS) have long waiting lists and strict referral thresholds. Historically only about a third of children referred to CAMHS are accepted for treatment.
推动该试点的直接原因，是需求与服务能力之间的巨大落差。NHS 的调查数据显示，英格兰 8 至 16 岁儿童中约有五分之一达到"可能患有精神障碍"的阈值，但专业的儿童与青少年心理健康服务（CAMHS）候诊名单漫长、转介门槛严格。历史上，被转介至 CAMHS 的儿童中仅约三分之一最终被接收治疗。
Policy responses since the 2017 Green Paper Transforming Children and Young People's Mental Health Provision have centred on three ideas: a designated Senior Mental Health Lead in every school, Mental Health Support Teams (MHSTs) working with schools, and a "whole-school approach" in which mental health is embedded in ethos, curriculum and everyday relationships rather than treated as a separate service.
自 2017 年绿皮书《改革儿童与青少年心理健康服务》以来，政策回应集中在三点：每所学校设立一名指定的高级心理健康负责人；由心理健康支持团队（MHST）与学校合作；以及"全校整体干预模式"——将心理健康嵌入校园文化、课程与日常人际关系之中，而非将其视为一项孤立的外部服务。
Peer support sits inside the third strand. It is attractive to policymakers because it is low-cost, uses existing pupil relationships, and appears to normalise help-seeking. It is also contested, because pupils are not clinicians, and poorly supervised programmes risk transferring adult responsibility onto young people.
同伴支持属于第三条路径。它对政策制定者具有吸引力，因为成本低、依托既有的学生关系网络，并且看起来能让求助行为"正常化"。它同样存在争议，因为学生并非临床专业人员，监管不足的项目有可能把本应由成年人承担的责任转嫁到青少年身上。
2. What the Pilot Programme Was | 试点项目究竟是什么
In the pilot, peer support meant trained pupils aged roughly 13-16 (Years 8-10) delivering three structured activities: one-to-one peer listening sessions in a supervised drop-in setting, small-group wellbeing sessions, and whole-class peer education lessons on mental health literacy. It explicitly did not mean diagnosis, counselling or crisis intervention.
在该试点中，同伴支持指的是经过培训的、年龄大致在 13 至 16 岁（8 至 10 年级）的学生开展三类结构化活动：在受督导的"开放交流室"中进行一对一同伴倾听；小组式心理健康活动；以及面向全班的心理健康素养同伴教育课。它明确不包括诊断、心理咨询或危机干预。
The design comprised a core training package of about 12-16 hours delivered over one term, fortnightly group supervision with a trained member of staff, a named staff coordinator, and a written referral pathway. Around 100 schools took part nationally, with a smaller intensive evaluation cohort studied in depth.
项目设计要求包括：在一学期内完成约 12 至 16 小时的核心培训；每两周与受过训练的员工进行一次小组督导；指定一名员工担任协调人；以及建立书面转介流程。全国约有 100 所学校参与，其中一个规模较小的密集评估队列接受了深入研究。
| Component 组件 | Detail 具体内容 |
| Training 培训 | 12-16 hours, active listening, mental health literacy, boundaries, safeguarding |
| Supervision 督导 | Fortnightly group supervision with trained staff; ad hoc support available |
| Delivery 服务方式 | Drop-in listening service, group sessions, peer education lessons |
| Safeguarding 安全保障 | No-secrets rule, written referral pathway, escalation to Designated Safeguarding Lead |
3. Evaluation Design and Methods | 评估设计与研究方法
The evaluation used a mixed-methods, cluster-randomised waitlist design. Schools, not individual pupils, were randomly allocated to receive the programme immediately or after a delay, which reduces the practical and ethical problem of denying support to individual children while still creating a comparison group.
评估采用了混合方法的整群随机候补名单设计。随机分配的单位是学校而非个别学生，一组立即实施项目，另一组延迟实施。这样既能建立对照组，又能缓解"拒绝向个别儿童提供支持"所带来的实践与伦理困境。
Quantitative data were collected at baseline, 6 months and 12 months using validated self-report scales: the Warwick-Edinburgh Mental Wellbeing Scale (WEMWBS) for wellbeing, the Strengths and Difficulties Questionnaire (SDQ) for emotional and behavioural difficulties, a mental health literacy scale, and a school connectedness measure. Administrative data on attendance, exclusions and referrals to MHSTs or CAMHS were also collected.
定量数据在基线、6 个月和 12 个月三个时间点收集，使用经过效度验证的自评量表：用于测量幸福感的沃里克-爱丁堡心理健康量表（WEMWBS）、用于测量情绪与行为困难的优势与困难问卷（SDQ）、心理健康素养量表以及校园归属感量表。同时收集出勤率、停学处分以及转介至 MHST 或 CAMHS 的行政数据。
The process evaluation was equally important. Researchers used fidelity checklists, lesson observations, and semi-structured interviews with peer supporters, recipients, teaching staff, parents and MHST clinicians, then analysed transcripts thematically.
过程评估同样重要。研究者使用保真度核查表、课堂观察，并对同伴支持者、受助学生、教职员工、家长及 MHST 临床人员进行半结构化访谈，再对访谈转录文本进行主题分析。
| Domain 领域 | Measure 测量工具 | Method 方法 |
| Wellbeing | WEMWBS | Self-report questionnaire |
| Difficulties | SDQ (self and teacher) | Questionnaire |
| Literacy & stigma | Mental health literacy scale | Questionnaire |
| Implementation | Fidelity checklist | Observation, logs |
| Experience | Interview schedule | Semi-structured interviews |
4. Outcomes for Peer Supporters | 同伴支持者的结果
The most consistent and largest effects were found in the peer supporters themselves. Trained pupils showed clear gains in mental health literacy, confidence in talking about feelings, active listening skills, and empathy, with reported improvements in the moderate range rather than the small range.
最一致且幅度最大的效果出现在同伴支持者自身身上。受训学生在心理健康素养、谈论情绪的信心、积极倾听技能与共情能力方面均显示出明显提升，报告的效果量处于中等区间而非小效应区间。
Stigma-related attitudes also shifted: peer supporters were substantially less likely to endorse statements such as "people with mental health problems are dangerous" or "you should keep it to yourself". These attitude changes persisted at the 12-month follow-up, which is important because attitude change is often short-lived.
与污名化相关的态度也发生了转变：同伴支持者对"有心理问题的人很危险"或"这种事应该自己憋着"这类陈述的认同度显著下降。这些态度改变在 12 个月随访时依然存在，这一点很重要，因为态度改变往往难以持久。
Wellbeing gains for peer supporters were smaller and more variable. A minority reported feeling burdened, anxious about "getting it wrong", or guilty when a peer's difficulties worsened. Those who received regular supervision reported fewer such costs, suggesting supervision is a protective factor rather than an optional extra.
同伴支持者自身的幸福感提升幅度较小且较不稳定。少数人报告感到负担沉重、担心"做错事"，或在同伴状况恶化时产生内疚感。那些获得定期督导的学生报告的此类代价更少，说明督导是保护性因素，而非可有可无的附加项。
5. Outcomes for Recipients and School Climate | 受助者与校园氛围的结果
For pupils who used the service, results were more modest. Help-seeking intentions and actual help-seeking behaviour improved, and recipients reported feeling more listened to and less alone. School connectedness scores rose slightly in intervention schools.
对于使用该服务的学生而言，结果相对有限。求助意愿与实际求助行为有所改善，受助学生报告感到更被倾听、更不孤单。干预组的校园归属感得分略有上升。
However, changes on standardised wellbeing and difficulty measures were small and, in several analyses, did not reach conventional levels of statistical significance once clustering was accounted for. Total difficulties scores on the SDQ showed no reliable change.
然而，在标准化的幸福感与困难量表上，变化幅度较小，且在若干分析中，一旦将整群效应纳入考量，便未达到常规的统计显著性水平。SDQ 的总困难分数未显示可靠变化。
Uptake was also lower than expected. Typically only about 10-15% of pupils in intervention schools used the drop-in service at least once, and frequent users were a much smaller group. The most commonly reported barrier was fear of being seen, followed by doubt that a peer could help.
服务的实际使用率也低于预期。通常干预学校中仅有约 10% 至 15% 的学生至少使用过一次开放交流服务，而经常使用者更是极少数。最常报告的障碍是"怕被别人看见"，其次是"怀疑同伴帮不上忙"。
| Outcome 结果 | Direction 方向 | Approximate size 大致幅度 |
| Peer supporter literacy 同伴支持者素养 | Improvement 提升 | Moderate 中等 |
| Stigma attitudes 污名态度 | Improvement 改善 | Moderate 中等 |
| Recipient wellbeing 受助者幸福感 | Small improvement 小幅提升 | Small (d ≈ 0.10-0.15) |
| SDQ total difficulties SDQ 总困难 | No reliable change 无可靠变化 | Negligible 可忽略 |
| School connectedness 校园归属感 | Small improvement 小幅提升 | Small 小 |
Note: figures here are rounded illustrations of the pattern reported in pilot evaluations. Always check the primary report for exact values before citing them in an essay.
说明：以上数字是对试点评估中所报告趋势的约数化示例。在论文中引用前，请务必查阅原始报告以获取准确数值。
6. Reading the Statistics Critically | 批判性地解读统计结果
The central statistical question is what "small effect" actually means. Standardised mean difference, usually Cohen's d, expresses the gap between groups in units of standard deviation.
核心的统计问题是"小效应"究竟意味着什么。标准化均值差，通常即科恩 d 值，以标准差为单位表达组间差距。
d = (M₁ − M₂) ÷ SD
A d of 0.20 means the average pupil in the intervention group is better off than about 58% of the control group. That is detectable in a large sample but may be invisible in a single classroom, which is exactly why "statistically significant" and "practically important" are not synonyms.
d 值为 0.20 意味着干预组的平均水平优于对照组约 58% 的学生。在大样本中这种差异可以被检出，但在单个班级中可能完全看不出来——这正是"统计显著"与"实际重要"不能划等号的原因。
Cluster randomisation creates a further issue. Pupils within the same school resemble each other, so the effective sample size is smaller than the raw number of pupils. This is captured by the intraclass correlation coefficient.
整群随机化带来另一层问题。同一所学校内的学生彼此相似，因此有效样本量小于学生原始人数。这一现象由组内相关系数（ICC）来刻画。
ICC = σ²between-schools ÷ (σ²between-schools + σ²within-schools)
Attrition matters too. Across the pilot, 18-24% of pupils did not complete follow-up questionnaires. If those who drop out are disproportionately the pupils who were struggling most, intention-to-treat analysis will underestimate benefit, while per-protocol analysis risks overestimating it.
样本流失同样关键。整个试点中，18% 至 24% 的学生未完成随访问卷。如果流失者中不成比例地集中于原本困难最大的学生，那么意向性分析（ITT）会低估效果，而符合方案分析（PP）则可能高估效果。
Finally, self-report measures are vulnerable to social desirability bias and demand characteristics: pupils in intervention schools know what the study is about, and may report feeling better because they want the programme to succeed.
最后，自评量表容易受到社会赞许性偏差与需求特征的影响：干预组的学生清楚研究目的，可能会因为希望项目成功而报告自己感觉更好。
7. Implementation, Fidelity and Dosage | 实施、保真度与剂量
Effect sizes in real-world trials depend heavily on whether the programme was actually delivered as designed. Fidelity varied considerably across sites. Some schools delivered the full training package and held every scheduled supervision session; others shortened training to fit the timetable or postponed supervision during examination periods.
真实世界试验中的效果量高度取决于项目是否按设计真正落实。各校的保真度差异很大。有些学校完成了完整培训并举行了每一次预定的督导；另一些学校为迁就课程表而压缩培训，或在考试期间推迟督导。
The clearest pattern in the process data was a dosage-response relationship: schools with higher fidelity and regular supervision showed larger effects on peer supporter outcomes. Supervision emerged as the single strongest predictor of positive results in the qualitative analysis.
过程数据中最清晰的模式是剂量—反应关系：保真度更高、督导更规律的学校，在同伴支持者结果上的效应更大。在质性分析中，督导成为正向结果最强的单一预测因素。
Common implementation barriers included timetable pressure, staff turnover and the loss of the named coordinator, difficulty recruiting a socio-economically and ethnically representative group of peer supporters, and reluctance among some staff who saw the programme as an extra burden rather than part of the school's core provision.
常见的实施障碍包括：课程表压力；员工流动导致指定协调人流失；难以招募到在社会经济与族裔上具有代表性的同伴支持者群体；以及部分教职工的抵触——他们视该项目为额外负担，而不是学校核心工作的一部分。
8. Safeguarding and Ethical Issues | 安全保障与伦理问题
The ethical architecture of the pilot rested on a small number of firm rules. Peer supporters were trained never to promise secrecy, never to diagnose, and never to manage a crisis alone. Any disclosure involving self-harm, abuse, exploitation or risk to life had to be passed to the Designated Safeguarding Lead immediately.
试点的伦理架构建立在少数几条硬性规则之上。同伴支持者接受培训：绝不许诺保密、绝不作出诊断、绝不独自处理危机。任何涉及自伤、虐待、剥削或生命风险的披露，都必须立即转交指定的安全保障负责人。
The most serious ethical concern is that peer support can unintentionally place a psychological burden on adolescents. Being trusted with a friend's distress may be validating but also distressing, especially if the peer's situation does not improve. This is why supervision, clear boundaries and the right to step back are treated as non-negotiable.
最严重的伦理担忧在于，同伴支持可能无意中给青少年带来心理负担。被朋友信任、被倾诉固然可能带来价值感，但同样可能带来痛苦，尤其当同伴的处境未见好转时。正因如此，督导、清晰的界限以及"可以退出"的权利被视为不可协商的前提。
A second concern is equity. Peer supporters are often confident, well-connected pupils. If the programme is the main visible mental health provision, pupils who are isolated or who have the greatest need may be the least likely to access it, potentially widening the very gap the policy aims to close.
第二项担忧是公平性。同伴支持者往往是自信且社交资源丰富的学生。如果该项目成为学校最主要、最显眼的心理健康服务，那么最孤立、需求最大的学生反而最不可能接触到它，从而可能进一步扩大政策本欲弥合的那道鸿沟。
Evaluation ethics also require scrutiny: asking vulnerable young people to complete repeated questionnaires about distress carries some risk, so studies typically build in opt-out consent, distress protocols and signposting at the end of every data collection session.
评估本身的伦理同样需要审视：要求处境脆弱的青少年反复填写关于心理痛苦的问卷本身也有风险，因此研究通常设置"可选择退出"的同意机制、痛苦应对预案，并在每次数据收集结束后提供求助指引。
9. Cost-Effectiveness and Scalability | 成本效益与可推广性
Costs in the pilot fell into three categories: initial training, ongoing staff time for supervision and coordination, and materials or venue costs. Because the programme relies on existing staff and existing pupils, the marginal cost per pupil is low compared with specialist provision.
试点成本可分为三类：初始培训、用于督导与协调的持续性员工时间，以及材料或场地费用。由于项目依托现有员工与现有学生，其人均边际成本远低于专业服务。
| Cost element 成本项 | Approximate scale 大致规模 |
| Initial training 初始培训 | Hundreds of pounds per school, plus cover costs |
| Staff time 员工时间 | Roughly 2-4 hours per week for the coordinator |
| Cost per pupil per year 人均年成本 | Published by TutorHao | Exam Prep Revision Series | aleveler.com
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