These are fixed effect model and cross section model.

这些都是固定效应模型和横截面模型。

Meta-analysis was undertaken using a fixed effect model.

使用固定效应模组来做变项分析。

Methods The fixed effect model was used for data analysis.

方法采用固定效应模型进行数据分析。

When use must tighten the buckle suitably, guarantees the fixed effect.

使用时要适当收紧扣带、以保证固定效果。

LM test proves the random effect model is superior to the fixed effect model.

LM检验证明随机效应模型优于固定效应模型。