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- 注册时间
- 2014-4-28
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- 2018-5-29
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Hi, Kenny:& ~: f, m! h2 k; O* W1 x7 |. p @
& S' s L5 J( q8 ^when 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?
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" d& Y* q0 Z; u. ganother 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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Best,- k# ?( X0 I1 m
Kelly4 v4 I7 I5 H% w, j
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