标题: 请教HLM中fixed effect 和 random effect 的问题 [打印本页] 作者: .微に酸袅袅 时间: 2014-4-28 09:28 标题: 请教HLM中fixed effect 和 random effect 的问题 Hi， Kenny：# z/ c& j- w0 _1 h3 I) k
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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？ b9 C; }# F' G2 X9 z" }8 J + F6 r; @ p0 g* }" 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？$ _& X$ n1 H) R
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Best，) m0 r# | y3 v
Kelly . i: t8 a+ W, G9 O. l; T. w作者: Kenneth 时间: 2014-4-29 20:16
Kelly，這是個給國內同學用的問題網站，麻煩用中文提問。謝謝。