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- 注册时间
- 2014-4-28
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- 2018-5-29
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Hi, Kenny:4 D& h1 H+ H5 U1 u/ V
# B2 N# B) i6 N6 P6 x6 Z& Kwhen 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?; m j& m5 z) P, t
9 W' d$ w$ Z; r3 S( R3 T+ A5 Zanother 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?0 ]6 T6 W |% g# m$ ~
! Z. `/ Q+ E' Y8 Z" I6 H
Best,
: w `: P' u% g1 |+ ~2 a4 IKelly9 s& `( U0 I8 F, }" f. ^
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