Meta-analysis using fixed effects models calculated summary statistics, provided there was no statistically significant heterogeneity, and expressed results as risk ratio.
利用固定模组分析出来的总结统计资料作整合分析，假设没有任何统计学上显著的异质性，并利用相对风险的方式呈现结果。
Fixed and random effects models were used to pool the data.
使用固定与随机效果模型整合资料。
By using panel data and fixed effects regression models, we have developed in this paper a new method which can be used to correct the omitted variable bias in some regression models.
一般的教材或研究文献没有谈及对其如何补救，该文提出一种采用面板数据和固定效应回归来对这种偏差进行补救的方法。
Besides, the learning models of the second foreign language are not fixed or perfect methods, but with their positive effects, they can be applied to foreign language learning...
第二外语学习模式也并不是一条完美而又固定的方法，但是却对外语学习起着积极的参考作用，能够帮助提高外语学习的效果。
Besides, the learning models of the second foreign language are not fixed or perfect methods, but with their positive effects, they can be applied to foreign language learning...
第二外语学习模式也并不是一条完美而又固定的方法，但是却对外语学习起着积极的参考作用，能够帮助提高外语学习的效果。
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