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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,) r9 F5 H8 L3 ]+ \: S. t8 d( x
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。
7 X$ V# E+ s9 W; u5 H 1、我的主要疑惑也是如何在HLM模型中,体现控制变量; Y, K- S3 x+ y; ~
2、D是个体层面的变量,分析时在level 2,用mean D代替可以吗?& b1 C2 Q$ \# S9 o P, _* U: b
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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:)4 S! r+ d8 l5 ]8 ]" j
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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: [2 o! W# L3 G/ P) p! xHelen 526,- y( g/ M* p" z% n; d; X5 P1 v
q# _( m+ T( c. c+ }你的模型是:2 m* l4 T/ n+ L- \" V1 ]; c# C
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[attach]282347[/attach]$ P5 w- n5 J4 B, D/ E
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, l9 ?+ w7 L4 k* Q' I
B 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) ^2 D: }& k4 H, ?9 U4 E2 w* j
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
- f2 f* n5 J" z1 _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 l4 o- P) [2 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+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 15 S& O m J. Z& r" x
B 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 2
3 j3 C" Z8 ^6 {7 Bβ0j=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?): J0 {9 A) \- Q: D) X3 p
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+ @+ A7 ^3 j) J0 y. X
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
$ p' q7 \* M0 s! t' O8 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+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?# z$ n, o: H) w2 H. w
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2 j+ a. A: _: q/ E9 O$ fModel 1
2 e. r! ^1 W9 ]1 Q | ( W: }* k. x% d& O2 K
Model 2 l+ }, K: ~% a
| ; e! I9 Q8 w/ m' H5 C, N) |
Model 3 5 w( b4 ^2 K0 D1 C4 L& I, v
| 0 C8 c4 k% b9 ~% j- P( [4 Z, y3 X4 [
Model 4
% G1 O' H' y; |( s |
Interceptfile:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image004.gif |
0 z# M5 q0 |, L数值 1 I7 P V1 c# J: x
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% e4 L g9 ]6 B( B- x! `, N2 D/ r) U) d数值 7 p8 h. Z) u) l3 m& _( G) O" h$ s
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o7 j! g9 ^/ B$ s数值
7 p l d3 ?" F, ~$ w |
0 \* @- `+ }, R0 t, @1 E; F数值
( e1 W# x# s- T! P! G$ Z |
control variables | 9 p9 K3 v% o D0 e- m( ~
| : y7 b- x+ W+ L1 k1 u. K6 m8 s5 D
|
^' }' S) B) f& D; [- t | * I: {" V7 _, i) R! |
|
Organiztion1 (file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif01) | % i0 U! S z7 y; m3 J" ~. L& |
数值
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2 `; t! Q9 G1 G- [数值
& A2 L) ]6 o7 y) g/ c |
% W" c* k. i$ q1 {7 v0 v% v数值 & s; F" ~: |, p6 U# u1 Q6 e
|
4 \9 @* B. x+ H; |' {7 g% H, Z数值
* a: C/ _* L$ C) Z4 y |
Organiztion2 (file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif02) | 7 b$ {* W" O4 R$ i% f
数值 # Q1 N$ X8 P% T8 ]) @* F
| ( S* L, X* o2 ]( u0 g
数值 8 }0 l% G/ w+ p# e
| # L) k1 t/ C+ A4 n
数值 1 f! z7 M; A/ e4 z
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7 H( C0 t* e% y0 v2 P3 Y) T4 D' w, F4 T数值 6 G! P9 V5 R8 v
|
Age (file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif10)
9 I( Z0 \( }' L* Y | - D e0 S* Q) N& H9 j
数值 : a2 |$ O( e1 d( e: T# e, `4 G1 E
|
4 \+ P1 K3 m% g9 h5 @数值 5 W. W0 B% ^3 {, v
| 0 Q0 i: q! e/ V& o' q" s
数值
, d% j; E$ x6 {2 k |
3 D6 G0 D( y; i1 s6 c3 H数值 7 L& q0 }2 b" Y8 I( I
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Sex (file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif20) |
, c" [; Z7 D0 [& z数值 ) l4 |1 @0 i8 ~9 X# t0 C
|
0 { n9 f) `! @$ b数值 , \6 `6 R- Z' X
| 0 r/ g7 f3 V- g/ i- J4 r
数值 # H# B0 b$ h$ e" M% ~
|
: l* j% ^6 t3 _6 m4 l" Z数值 * b9 ^1 g& m3 b0 H$ N
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C(file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif30) |
4 M" v! \4 g7 Y8 r' ~- P数值 % _% k2 C( [% m* S: a& f
|
4 x9 {8 V9 q3 k5 _% t% x数值 / ^( @9 e1 v1 _4 G
| - N/ Y7 h: Y1 n4 }
数值
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A2 X' `4 v8 X9 y. B3 ~/ O数值 ! k& d4 |+ V2 ?6 L4 ]& }5 `6 J# q
|
D (file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif40) | 0 m, x1 S) M8 v
数值 $ d9 C B# s" o [& g q: y0 c
| * t- C- o5 {% G2 ]) N
数值
) J* f7 @5 c) a. y | / K Q Y$ r" M( l6 q2 z
数值
/ U% e. _9 D* ?/ E* } |
* P& j. w, Y: l数值
% {1 f) ^' g, B% [- o0 r |
A (file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif50) | ; l' Z8 i( J3 W" N0 q6 a
|
; u, ~$ l; X; K8 S% C9 L6 z数值 0 j) G* X" ~8 M. B
|
6 j9 K; K1 q- s! j2 @4 a; u数值 6 s a+ O `8 w: y1 W1 d9 @7 v9 a
| - O6 e8 a" f% @
数值
8 g; x) [1 u% E6 ^) E; p |
A*C(file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif60) | : o* ?8 F+ f6 W& |- ]
| . e& w1 [! Z2 F
| % }0 m, L4 P9 s* e4 u% [
数值
8 b- x/ O$ c6 k4 E3 R8 V! e |
7 e0 H& M' P C+ U7 a3 a数值
# Y7 q* j: a# O" ]; _' S6 m |
A*D(file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif70) |
/ d5 u' h1 {+ F: W2 P# M | " c/ s8 y/ b# \ E6 E3 N* C- h
|
! |1 ]1 |% p. d" M数值 8 k7 s1 v$ m( V0 `
| 9 T" z. L; m$ w' T
数值
7 z, G' I2 g1 T2 a# V |
C*D(file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif80) |
! q7 a' C' \$ e0 A i5 G! ^# r |
0 M9 _! k/ w2 H3 s8 ? |
3 j I( V5 S# J* ]9 P3 Y. d数值
. V" @! X( L+ J: n- N |
/ [0 a8 Z' n; C$ ~: U数值 & J" ?; w) X) h6 h& K7 ~& \
|
A*C*D(file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif90) |
% R( d1 W' s; f: Q/ G& k) T |
% A8 C) }) F8 r0 h- T | * G6 C% d1 ]/ N/ N. O6 u
| 5 Q7 I) k( K" C
数值
8 L! w9 A% X& J$ ~. |6 p5 @ |
7 }! r) x! p5 g! o | ) Y8 n N0 U" L; w2 {" G
|
9 d0 t4 D1 T7 ~$ u; W* g$ V | ) n: a/ Y" _) c
|
7 k+ ?8 B! y: f" [! M/ [ Q9 p" r |
X2 |
3 z, d9 L( R4 }9 X a" c" u5 K数值
! Q7 V) n7 V% ? |
& V# T; ?# `- y7 O2 @6 m9 S5 L数值 3 f) X2 Z7 k* c) f5 x1 c
|
' w3 |5 g3 y+ L% V2 l. |5 m数值 1 }1 Y U' B& b+ ~, B1 l3 l) R
| $ t) s# }( P7 x/ `' J0 T1 j8 i- S
数值
1 Z; p# H& F* W. l; w3 T# O4 ^ |
Deviance | . r. U6 o) T0 k$ ? c1 ]
数值
$ g% u) N1 z1 p. U8 u8 J2 t; S8 E1 ` |
( }, @( A1 }& [2 @8 c4 B, L数值 1 u% w+ Z& _/ E# |
|
; ?% i6 r" A% w数值
# M4 w; }- J1 I. _ |
1 n' ]6 i8 ~: P; r% n+ j- e数值
^. j! t9 f( r- Q |
Decrease in Deviance |
2 Z: i1 P3 _$ t! M1 j( Im
! i1 R% P* G$ C% U | 1 t/ ^8 @1 a8 j: _; H
n ' k4 J5 [+ k- `
| & E, U+ |" g4 @! F; R
l 0 \& q& d: e6 p9 @
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" ^0 N: _' h! R6 ek 3 y* x. ^8 K8 l+ z* `7 ^3 Q( @
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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 |
; b9 a' Q# S+ h. P4 q2 }Helen, Y- k/ {9 }# X) [' b
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。% n7 h7 G6 ?! k
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。$ A- H+ _9 l- S" s( x; l6 U& }
在这个情形下,我会这样模拟:3 F, t$ s8 x- T y w6 L9 H4 w
Level 1$ N1 b/ S, b5 ]
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 20 v0 p$ ~0 E' Q& \
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)4 C; K: G5 I/ Q, X0 t
β3j=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
Q' x* B: `0 `7 N+ V
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 5 P8 n6 n' d4 v$ D4 G
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
, T/ ~5 l7 Z; l0 ^5 o3 {, U8 x
参数gfile:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif51就是你要的three-way interaction了。
! W4 a- I; ^! U8 wKenny* f- _- Z- A6 i- P) }9 F. o5 _
0 P, [/ D V) }3 y/ B* `0 p5 `file:///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
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