Methods 是审稿人决定是否信任你结果的地方。一段扎实的 Methods 不只是在描述”你做了什么”，它要让读者相信你所做的是合适的、可复现的，并且没有明显偏倚。Methods 写得不清楚、不完整或结构混乱时，审稿人还没读到结果，就已经开始对结果本身打问号。
下面这五类错误，在医学与生命科学研究的稿件中反复出现。每一类都会在审稿人心里制造一种特定的疑虑，而每一类也都有明确的改法。
一、把结果混进了 Methods
Methods 描述的是”计划了什么、执行了什么”。Results 报告的是”得出了什么”。当预实验数据、结局指标或基于数据的决策理由出现在 Methods 中时，两节的边界就塌了，审稿人对整篇稿件的结构逻辑也会失去信任。
这个问题最常出现在作者用结果来为某个方法学选择辩护的时候：“Because the Shapiro-Wilk test showed non-normal distribution (p = 0.02), we used the Mann-Whitney U test.”正态性检验的结果应当放在 Results 或者补充统计说明里，而 Methods 部分应当写的是”决策规则”，不是”结果”。
常见错误写法：
We performed the Shapiro-Wilk test to assess normality. Since the data were not normally distributed (p = 0.02), we used the Mann-Whitney U test for group comparisons. The median tumor volume in the treatment group was 2.3 cm³.
修改后：
Continuous variables were tested for normality using the Shapiro-Wilk test. Non-normally distributed variables were compared between groups using the Mann-Whitney U test; normally distributed variables were compared using the independent-samples t-test.
修改后的版本只给出决策规则，没有透露数据。实际的正态性检验结果和组间比较结果，都应放到 Results 里去。
二、统计方法报告得不够细
审稿人和统计学审阅者需要具体信息，才能判断分析是否合适。以下三个细节最常被遗漏：所用软件及其版本、具体采用的统计检验方法、以及统计显著性的阈值。
模糊的报告不仅让审稿人恼火，更会影响复现性，并让人怀疑作者是否真正理解自己所做的分析。
常见错误写法：
Statistical analysis was performed using appropriate software. The significance level was set at p < 0.05.
修改后：
Statistical analyses were performed using R (version 4.3.1; R Foundation for Statistical Computing, Vienna, Austria). Continuous variables were compared between groups using the independent-samples t-test (for normally distributed data) or the Mann-Whitney U test (for non-normally distributed data). Categorical variables were compared using the chi-squared test or Fisher’s exact test when expected cell counts were below 5. All tests were two-tailed, and statistical significance was defined as p < 0.05. Multiple comparisons were adjusted using the Bonferroni correction.
修改后的版本明确给出了：
- 软件及版本（R 4.3.1）
- 采用的具体检验，以及每种检验的使用条件
- 检验方向（双侧）
- 显著性阈值
- 多重比较的校正方法
三、遗漏影响复现的关键细节
Methods 的信息量，应当足以让同领域的其他研究者复现你的实验。但在实际稿件中，作者经常漏掉浓度、孵育时间、仪器型号、每组样本量，以及纳入排除标准。这些遗漏并不是小节，它们恰恰是决定一个结果能不能被复现的关键。
常见错误写法：
Cells were treated with the drug and incubated for a period of time. Cell viability was then measured.
修改后：
HeLa cells (1 × 10⁵ cells per well, 6-well plates) were treated with doxorubicin at concentrations of 0.1, 0.5, 1.0, and 5.0 μM. After 48 hours of incubation at 37°C in a humidified atmosphere containing 5% CO₂, cell viability was assessed using the MTT assay (Sigma-Aldrich, Cat. No. M2128) according to the manufacturer’s protocol. Absorbance was measured at 570 nm using a microplate reader (BioTek Synergy H1).
修改后的版本写明了细胞系、接种密度、板型、药物浓度、孵育时长与条件、试剂盒（含货号），以及测量仪器。每一个细节都是复现时必须用到的信息。
四、对同一个对象使用不一致的术语
当同一个变量、操作流程或者患者分组在 Methods 中被换着不同名字来指代时，审稿人会分不清你说的是同一个东西还是多个东西。这个问题在多作者合写的稿件中尤其常见，不同部分由不同研究者起草时最容易出错。
常见错误写法：
Patients in the experimental group received the new treatment protocol. Blood samples were collected from the intervention cohort at baseline and at 12 weeks. The treatment arm was compared with the control group for all primary endpoints.
修改后：
Patients in the intervention group received the new treatment protocol. Blood samples were collected from the intervention group at baseline and at 12 weeks. The intervention group was compared with the control group for all primary endpoints.
改法很直接：选定一个术语，在全文中保持一致。如果某个对象在不同分析情境下确实需要换名（例如在生存分析中用另一个称呼指代同一批患者），那就明确定义这层关系：“The intervention group (hereafter referred to as the treated cohort in the survival analysis).”
五、Methods 的呈现顺序不合逻辑
Methods 的顺序，应当要么贴合实验流程，要么贴合结果呈现的顺序。当 Methods 以任意顺序罗列时，审稿人无法重建实验的时间线，就会开始怀疑作者自己是不是从一开始就没有清晰的流程。
最常见的顺序问题，是先写分析方法再写样本采集，或者在定义分组方法之前就写亚组分析。
常见错误写法：
We performed Cox regression analysis to identify prognostic factors. Tumor samples were collected from patients who underwent surgery between 2018 and 2022. Immunohistochemistry was performed on formalin-fixed paraffin-embedded sections. Patients were divided into high- and low-expression groups based on the median H-score.
修改后：
Tumor samples were collected from patients who underwent surgical resection between January 2018 and December 2022 at [Institution]. Formalin-fixed paraffin-embedded sections were prepared and stained by immunohistochemistry for [target protein]. Patients were divided into high- and low-expression groups based on the median H-score. Cox proportional hazards regression was used to identify independent prognostic factors for overall survival.
修改后的版本按实验时间线展开：样本采集、组织制片、染色、分组、分析。每一步都自然接到下一步，审稿人读的时候不需要在脑子里再把段落顺序颠来倒去。
提交前自查清单
- Methods 里是不是混入了结果、结局指标或数据值？如果有，请移到 Results。
- 是否写明了统计软件（含版本）、每一种检验方法、选择每种检验的条件以及显著性阈值？
- 同领域的其他研究者，是否能仅凭这一节的信息复现你的实验？检查有没有遗漏浓度、时间点、仪器和样本量。
- 每一个变量、分组和操作流程，在整篇稿件中是不是都用了同一个名字？
- 各项方法的呈现顺序，是否与实验流程或结果的呈现顺序保持一致？
一段精准、条理清晰的 Methods，会告诉审稿人你所做的研究具备与已发表成果同等的严谨程度。如果你希望有专业人员从期刊标准的角度审查你的 Methods，ScholarMemory 为医学与生命科学研究者提供学术润色服务。如需联系，请发送邮件至 contact@scholarmemory.com。