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标题: 请教kenny, 关于HLM中控制变量-看了JBP加油的帖子的想法 [打印本页]
作者: helen526 时间: 2011-6-1 18:54
标题: 请教kenny, 关于HLM中控制变量-看了JBP加油的帖子的想法
kenny,) x4 ^6 z q* L7 j. L4 k7 z) O' s$ X) d
看了JBP加油的关于HLM做跨层次调节的帖子,恰好最近也在学习这方面,我尝试写了一个检验三重交互作用的流程(其中,包括个体和组织层面的控制变量),不知是否合适,请您确认一下。如果不正确,请在附件的WORD文档中修改。 等您修改后,这个帖子估计就可以解决不少同学使用HLM做调节的问题。) r' {) t2 V! K$ S7 M! T, }
1、我的主要疑惑也是如何在HLM模型中,体现控制变量
0 M6 S P: U' v6 r 2、D是个体层面的变量,分析时在level 2,用mean D代替可以吗?; \ L. ]: r B, j% I" ?- |6 @
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作者: helen526 时间: 2011-6-3 15:06
呼叫kenny, 请您确认我写的是否正确哦:)
6 t7 ~+ l/ O2 V; i9 e8 h也请大家多多提出有异议的地方
作者: Kenneth 时间: 2011-6-12 23:48
回复 1楼 helen526 的帖子
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Helen 526," `6 i) v; y$ J* M- j; ]0 Z9 U
7 u& M, ~4 }+ d' k# ?% R. F* U# R你的模型是:
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[attach]282347[/attach]) ~* ^- q4 i! b: @# D6 Q; J
模型假设1:个体层面,A对B有显著的正向影响
假设2:C对A和B之间的关系,具有跨层次的调节作用
假设3:D、C对A和B之间的关系,具有三重调节作用
另,团队层面的控制变量包括,organiztion1, organiztion2; 个体层面的控制变量包括age,sex。A和B和D为个体层面变量,C为团队层面变量。
Model 1:只包含控制变量
Level 1
' H A9 j7 m7 g+ M8 _; f8 yB ij=β0j+β1j(age)+ β2j(sex)+ β3j(C) + β4j(D) +file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gifij
Level 2+ b, f1 _" [1 T; V0 t0 P8 v f' z
β0j=file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image004.gif+file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif01(organiztion1)+file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif02(organiztion2)+file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image006.gif
β1j=file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif10+U1j
β2j=file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif20+U2j
β3j=file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif30+U3j
β4j=file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif40+U4j
(将调解变量C和D首先引入方程,是为了保证“在分析预测变量A的效果之前,首先控制C和D的作用”。请问,这样做可以吗?)
Model 2: 加入预测变量A
Level 1. ]% o7 }5 U8 t) D: q
B ij=β0j+β1j(age)+ β2j(sex)+ β3j(C) + β4j(D) + β5j(A) +file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gifij
Level 2
4 E0 w1 B0 {2 g j6 d& q1 Fβ0j=file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image004.gif+file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif01(organiztion1)+file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif02(organiztion2)+file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image006.gif
β1j=file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif10+U1j
β2j=file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif20+U2j
β3j=file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif30+U3j
β4j=file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif40+U4j
β5j=file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif50+U5j(file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif50表示A对B的效应,验证假设1,对吗?)
Model 3: 加入所有的二维交互项A*C、A*D、C*D(验证假设2)
Level 1
& o& d9 Y/ p. X! r: eB ij=β0j+β1j(age)+ β2j(sex)+ β3j(C) + β4j(D) + β5j(A) + β6j(A*C) +β7j(A*D) + β8j(C*D) +file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gifij
Level 29 U$ k9 ^" n# }
β0j=file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image004.gif+file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif01(organiztion1)+file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif02(organiztion2)+file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image006.gif
β1j=file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif10+U1j
β2j=file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif20+U2j
β3j=file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif30+file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif31(C) +U3j
β4j=file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif40+file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif41(mean D)+U4j(由于,D本来属于个体层面的变量,所以涉及到level2的分析,一律用mean D的值代替, 这样合适吗?或者您认为在D是低层面变量时,应当怎样处理?)2 g' v5 a( u8 w' W/ b. e! E
β5j=file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif50+file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif51(A) +U5j
β6j=file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif60+file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif61(A*C) +U6j
β7j=file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif70+file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif71(A* mean D) +U7j
β8j=file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif80+file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif81(C* mean D) +U8j
(看到JBP加油提供的文献中,file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif30(C)表示C对A和B关系的调节作用,但是我认为是file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif31表示C对A和B关系的调节作用?)
Model 4: 三重交互作用(验证假设3)
Level 1' y) _5 g/ t& |8 y; I
B ij=β0j+β1j(age)+ β2j(sex)+ β3j(C) + β4j(D) + β5j(A) + β6j(A*C) +β7j(A*D) + β8j(C*D) + β9j(A*C*D)+file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gifij
Level 2
8 j# X5 C2 V8 B4 p& D+ e# X. Y% }β0j=file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image004.gif+file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif01(organiztion1)+file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif02(organiztion2)+file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image006.gif
β1j=file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif10+U1j
β2j=file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif20+U2j
β3j=file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif30+file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif31(C) +U3j
β4j=file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif40+file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif41(mean D)+U4j
β5j=file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif50+file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif51(A) +U5j
β6j=file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif60+file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif61(A*C) +U6j
β7j=file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif70+file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif71(A* mean D) +U7j
β8j=file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif80+file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif81(C* mean D) +U8j
β9j=file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif90+file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif91(A*C* mean D) +U9j
(其中,file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif91(A*C*D)表示D对C\A\B关系的三重调节作用,对吗?)
如果写论文,下面表格报告的格式可以吗?
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Model 1 4 f7 v# b/ B. @1 i2 ]
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& p- e$ p {8 z' ~" q, QModel 2
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! U5 t D% g, L8 U) w+ IModel 3
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t6 H# j$ Q; eModel 4 % ^4 I# X, E6 g3 e! P9 O5 u
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Interceptfile:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image004.gif |
2 t' T* a. n0 u$ D- R. U数值
z- s: N* _" i+ n |
) i' f. M! D5 C, x数值
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3 k' l# Z& J. R, }数值
9 k+ x0 q! _: H, d; g' {8 } |
: F9 s" C1 F' S# u数值
/ M, J; w4 r4 Z" e( q- c6 P7 R9 x |
control variables | 6 k0 _) e, M, ?! L6 s# Q! N9 D. @3 B
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" N9 `/ C6 I' G4 I# a6 C |
6 \+ C. c% B- R6 c |
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Organiztion1 (file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif01) | 7 A9 p( c( ~/ X/ w7 J. L
数值
# @: s1 M+ d' [ `/ Y# |9 r1 w; [( ` |
. e) B* v2 j1 U. x# ^$ K数值
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数值 5 a, b M3 R' O8 Q8 @
| - \3 @$ h6 M8 z" W5 i
数值
7 g8 x* b: Y$ \6 L/ ~ |
Organiztion2 (file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif02) |
. H, f6 X% f" F1 T6 x4 s! R$ {! x6 c数值
a8 g$ e1 Y. t4 T' U4 E2 Z |
3 f$ k3 [" X! E7 O7 h) r( G数值
. E# ^. Z. |' _* S |
( W5 O$ t+ X; U4 n7 H数值
! I; z b( G4 H. R( H! q |
- [) A% z: T1 G9 Q* ]* P6 g数值
6 g' N: g8 z5 O( h2 S |
Age (file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif10)/ G+ F$ y9 ~: r, ^* m
| $ a6 F- S5 Y" {2 l5 p
数值
- n% j _5 v) ^- ]9 S7 \ | : z7 ~3 G& G P
数值
2 ]8 |8 O/ D! P e; ? |
5 L F) K$ O3 i# c) N1 C数值
$ X& E0 [% K: S: P0 e5 x | / G" ?/ G/ t( a8 k/ l4 H, k
数值
) ?9 V! l9 g3 N |
Sex (file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif20) |
4 a: @3 J1 T; b. M1 U" K7 @+ u数值 6 Q2 S" |5 w6 G" \) }8 Y/ C% U$ Y+ `
| 0 U. T9 h9 J$ r: k: J
数值
7 [3 l. c- l+ p6 O | 5 @ U8 e; I" h0 P& j& F
数值 9 E' i: D! T/ G: ~) D
|
1 ~# N9 O0 M# o6 Q! J数值
/ B6 e1 N% P; ]& @! S |
C(file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif30) | 0 P9 X, e9 k9 n, C
数值 * v! y2 E' Q5 P: Q
| ) w. n3 a3 a( `% F( c0 q% I
数值 i. L/ c/ D- j) E% @' t0 W
|
+ |- b9 P- [8 v( e4 y+ y* B2 N, {' ?数值 . R" {9 p. F* Z+ @, S" ~1 R
|
, |4 A7 U) ~+ g4 r数值
. S! t* e3 _$ x+ x i |
D (file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif40) | & a5 [0 f* l* n3 Q6 W; H- ]
数值 g/ h" K9 ]2 E' S+ z b) x. W
| 9 h7 t$ O4 A: r r1 m8 n; f- D- t
数值 ) @9 d- T" ]* H! W
|
9 l% n& R4 r& N& d J+ ~6 D数值 , M9 c& ?% c/ \2 Z7 H: S
|
6 Y. U' v: y, a/ j: \4 Y数值
, E' R& h& ], S! U# O+ B |
A (file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif50) |
- ]8 m b( L+ M; d |
7 F/ l9 S3 c0 S& u数值
" ]* R/ ]2 T" j* h1 N; A; e: ?: Q |
, j; t7 L6 q) }8 f+ o2 x数值
/ ?4 X$ s9 z' B8 G+ t& e! p |
2 ^; A' |* g7 l; l( j6 D数值 # a c+ s: Y5 v% S
|
A*C(file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif60) | ' x6 R( ^% X; X( |, x
|
$ W& E& I) c+ m: z |
4 b2 w- `2 X% n6 W3 d9 B9 l数值 3 q- r+ r# U% [9 w: L$ G1 L/ o
| 6 u2 `/ |; w5 {! { s
数值
. Y8 [. B/ t$ n) p# J9 @ |
A*D(file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif70) |
6 `% f) b& F1 ^% K1 L& R' s/ j |
- P/ y Y: x" `8 _5 ]6 r. _ | 3 O: [/ J1 ` _" T( V/ w
数值 ' V% T9 d$ W T' l6 W( q
|
; X6 p5 g& @" U数值 , c0 Z( S5 ` x% |& o
|
C*D(file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif80) |
r/ r/ a. v0 P! j |
) a; z( ]2 H7 e8 L! j1 f( n! T |
+ e' J- Z' H: n数值 " m' w) F4 N( F/ p2 E
|
P; j" B' ^% E: N, D数值
% q2 Y5 s# A; W. |8 E- N |
A*C*D(file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif90) |
1 Q' i: ?) v/ H1 ? |
3 a4 ?) R3 e- C' z |
! v" U4 l- o# e/ g' ] |
$ i( Q) f0 x# J2 H- |3 o: l数值
( M- j) W1 K( S: H |
0 N. S& ?: y% A! L6 x2 R |
* _" K: q9 K6 o. ] | 4 @6 G0 u& Z A
| + r7 X$ r' v& W7 r
| 8 g3 }$ t b; H" {' t1 K2 F1 m
|
X2 |
1 E( v6 L# r* e* f$ e$ i数值
5 H# X% R0 T/ f( l( l& s. l |
0 }8 l1 w/ i" F9 u7 C3 L! ]数值 7 _. i K1 N% @! v# K. h
| + D! c+ ]* f* I
数值
6 _. `! n+ B7 O1 h! @* \ |
* a$ ]" _" g' j) J" }8 |) ?数值 * h+ n5 ]4 d- N
|
Deviance | & X; m9 V! w" W" N5 ^+ s* S
数值 % _, i1 `8 {+ K3 t. _
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4 g. `1 }/ r! y. ]/ S; }数值
|1 y- E- q8 z# O( D3 W | 3 [( S/ p0 P! P8 Y6 `2 T8 M: P& ?
数值 2 N& Q5 [* _: }
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5 k: v+ \ {5 a8 M数值 4 k3 i# F: g* P: [( U' f
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Decrease in Deviance |
9 |2 G7 G8 W, [% n- r; x" xm 1 p- ?' E' @2 J* ?
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8 d9 \. p/ P' B; Q9 I on ) ^( p# {0 K2 Y+ U9 G
| * O8 T* D+ s+ l+ b; i
l ' N( P' }: F8 J4 E- D
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" p! D/ S4 Y- d2 V; G$ r) I/ nk
9 B3 e7 u( _, r6 F5 g2 M f |
m代表 Decrease in Deviance in comparison to the null model n 代表Decrease in Deviance in comparison to the model 1 l代表 Decrease in Deviance in comparison to the model 2 k代表Decrease in Deviance in comparison to the model 3 |
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Helen,
) G+ N! y- j( T7 i/ `6 M我怀疑你的模型根本就不可能,所以你的问题我不知道如何回答。. E) ~3 d! V, |! y( x Q; {
凡是一个高层阶的变量影响(或是调节)一个低层阶的变量,就表示这个高层阶的变量在低层阶中是不变的。所以在你的模型中,在每一个层阶中,C对A→B的影响是不变的。那么D何来再调节这个不变的影响呢?如果要有一个三阶的调节,而第一个是高层的话,另外一个一定也是高层的。你的问题只有当反过来说时,才会成立。就是D(低层)的变量调节A→B的影响,而这个调节再被C(高层变量)来调节。
+ Y, \5 a4 _, w: e' \在这个情形下,我会这样模拟:
4 O$ y- R$ m I; F6 zLevel 1
, Z$ ]. S Q8 t. m! {6 d2 b7 ?B ij=β0j+β1j(age)+ β2j(sex)+ β3j(Aij) + β4j(D) + β5j(D*A)+file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gifrij
Level 2, |2 N0 T0 z. @$ R1 E
β0j=file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image004.gif=gfile:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif10 +U1j (organization 是grouping variable,不用模拟的)
; E- j4 i% g* E6 pβ3j=file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image004.gif=gfile:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif30 +gfile:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif31*C +u3j / H: |; C) {6 N7 @9 a8 t
β4j=file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image004.gif=gfile:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif40 +gfile:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif41*C +u4j
* |9 H( |6 @4 Z: K/ J* I
β5j=file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image004.gif=gfile:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif30 +gfile:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif51*C +u5j
+ U7 H7 G. j' E4 Y& ?4 |, y$ Z. ~
参数gfile:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif51就是你要的three-way interaction了。
/ y" ]$ ?# j2 C" P# J4 d. U3 VKenny. ]2 U9 }% Y& L6 m' |) v V
5 w1 l( T/ l8 r1 i+ H% vfile:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image006.gif
本帖最后由 Kenneth 于 2011-6-12 23:50 编辑 6 T/ m' G+ E6 L& D) T
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