If reviewers raise the methodological cut-point for including studies, there will be less variation in validity among the included reports.
评价者在纳入研究时越是提高方法学分界点，则纳入研究间的真实性变异程度就越小。
2
In particular, heterogeneity associated solely with methodological diversity would indicate the studies suffer from different degrees of bias.
尤其重要的是，与方法学相关的异质性，显示了研究间存在一定程度的偏倚。
3
Methodological quality of included studies: This should describe the general quality of the included studies and any important flaws in individual studies.