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- 注册时间
- 2014-4-28
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Hi, Kenny:
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) P% ?: r. f8 X4 z2 G7 R& @2 Awhen we use HLM,there are some paper just report the fixed effect,while most time I use the random effect,so my question is when shall we use fixed or random effect and their difference?& S& T/ T/ m0 O S
6 ]8 \7 {4 p& _1 P/ Wanother question is about the ground mean and the group mean, when we test the level 2 model, should we use group mean?can you give some guidance?
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9 G! G% F0 ~. I' lBest,* S5 l# e( ^) q+ Z2 I) F" k* ^
Kelly
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