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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,8 z9 V" }- `3 g/ C$ }: N
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。" \4 n) a, m3 a7 c( Y
1、我的主要疑惑也是如何在HLM模型中,体现控制变量
U$ ~: E! j$ Y# F 2、D是个体层面的变量,分析时在level 2,用mean D代替可以吗?
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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:)
5 S5 n8 K8 a. _6 k+ Z0 {3 ?: x- R2 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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Helen 526,
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) X+ B( u: a9 E. v C你的模型是:
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[attach]282347[/attach]/ n' D4 u X4 V- L; n, A6 l9 }' O$ o
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
2 M2 Z: G4 o8 X! P: Q5 E* ZB 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! p3 H1 B9 l) N# x
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 10 T$ f! g, I& `# }% S
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& s+ j) g; @4 `% {; 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
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: y0 }- ~7 h2 X9 {
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 23 c' h2 X; M8 o# R; Z! a
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?)7 s; k( A! M# e' [3 H5 N, C
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) r G6 y% y" O
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 23 O( {3 x. \' B4 A5 Z3 N1 p# T
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?8 @! ]9 i1 d x6 Q5 H
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Model 1 " [1 Q4 j6 v. I8 W
| ' T2 H4 n" s# i0 Z6 K
Model 2
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6 D M# z$ a6 A4 k: YModel 3
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Model 4
+ b ?1 ]4 B- } |
Interceptfile:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image004.gif | : F# I4 Y# R' |# E
数值
; @+ W7 @) B7 s% r1 C* N( }0 h/ p# ~2 k | ! D8 ]% w6 r( E( y8 {5 Q
数值 / t7 D6 U4 Q0 i$ i* G6 {& @" O
| # U% }# v9 i. m8 T7 H/ P
数值 ! ?; x Y I. D1 J1 \
| 0 t5 W+ b% V; l& y8 U6 K) q( m
数值 ' {6 o- m- l5 [! N9 M- F5 P
|
control variables |
1 j% R7 @8 j) q& P, S# F9 U |
n# w- v! M" d | 8 P+ d% K& T* n0 e% z
|
9 d# {+ J# t! I' g$ v& { |
Organiztion1 (file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif01) |
3 @) w& `# V' p. h; T8 Y数值 ; G) r. l8 Z# m; D5 ~
|
7 q5 i7 u, ^+ H4 }6 E7 h: ~& \% N1 g数值 1 S* N2 n3 J5 T6 c) J
| c- G% C) K7 J& H3 @! z
数值
) ~# K \. j- J( C( g* u | 3 ^8 z6 q8 s/ p: j7 \ S
数值
2 p1 N" \8 e+ O1 B |
Organiztion2 (file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif02) |
) S5 Z/ J$ r H! a [) P( K数值 , u% o, Z0 |0 y
| ; _$ ^& K7 G- e# M! {3 L8 a
数值 ; c' T9 @% ]- H! V/ u+ P& r2 p T) i
| ; o: v! J, P+ b( \4 `! ]
数值
! z. b1 a9 l+ Q/ \* x0 j | " u& i; Z$ |. B6 v4 d; m
数值 7 r8 E, |- \3 Y$ x
|
Age (file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif10)
, N! \, S+ K; ~6 t | - `# a& t) F# l4 d
数值 ) v8 M+ L! X0 R) N
| 6 M, L$ l5 V; ]9 A
数值 + O# d/ b$ ]5 @) g) m
|
. c, {7 h1 M, c数值
! H2 j5 `0 |0 c4 k6 b8 u |
/ n# j* m1 m, i2 a数值 ) l" p$ b/ O$ q7 V% s! ~' e* E
|
Sex (file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif20) |
' f0 @" M6 f0 V$ x( Y( A- f数值 5 m R! `9 S' f. x
|
4 F f# `& {1 Y" j/ s数值 7 ]' d# k; o. m- ?- \* Q" G
|
( O2 U2 b5 `- y" E+ r( ^" C数值
: j5 J1 P1 m5 Z | 6 w! Z J. B4 ]( y( W; i
数值 * u7 `( j M/ F, A1 L& W* S
|
C(file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif30) | * ~+ I& a) X! K+ p$ D8 i" i+ T
数值 $ j6 U. F" \* d) b; c' w" J' Y1 D
| : @3 G- U3 y+ H
数值 , [* \: C: p# e7 B H
| 4 ~; y: E& Q* I$ x% Y0 T9 x# i
数值 $ ~6 K7 R; t! j3 C
|
' F- J2 i( g6 U% M9 D) {数值
# n' x8 C& c3 \) g' A |
D (file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif40) |
0 w- [ g! \# [! L6 u) i数值
, Q% M# {6 F, U9 A( \9 \ | ) q9 W5 R8 a3 K* _7 l" e+ d
数值
5 v2 R5 K4 U5 q, z0 L: X a$ u |
K- F& U, C9 K3 M& [2 ~数值 $ @' E5 K+ J% v$ Q
|
& t5 j( h6 V( J数值
$ n2 f: M8 z% `3 e |
A (file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif50) | 2 _4 f o# \8 @1 U6 v% O& J
| ! ?4 r3 M; Q; L( u4 L& L
数值
8 A) X$ o& P, D9 \( V& z$ N | $ o0 g, L1 E5 t+ I3 @* y2 V2 T
数值
r2 t$ I5 r0 R+ z7 v' F |
/ W1 [1 |- _" b D; e3 `" f数值 . g. b/ V9 o( c* r. k3 F; h
|
A*C(file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif60) |
! |/ \$ a* n) m! N( d0 x3 T |
) t$ r3 k1 j& n% i) g: ^ |
& Z- m! m# L* i# t! Y0 E/ R数值
8 `5 ]8 b$ Y7 x# V* F1 ~' B0 a | ' j9 w, a9 U% Q7 B% H4 n
数值 " |8 h: ^7 X0 H- w. j
|
A*D(file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif70) |
/ _' E, g/ c! z: O& E5 \ |
& k+ W' O3 O% V, D3 _- n" k2 B | * S2 K- V9 I% W# y4 w2 ?
数值 9 x) O1 i4 Y0 ^$ `% r9 X4 \" k3 k
|
7 m$ B+ Z: g; s8 X6 Z/ o" J ]" B数值
% g( I8 H5 {2 ^7 @ |
C*D(file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif80) | ! ]3 m2 T) l* G9 E2 ?* Y
|
; E$ X8 S7 Z# v | 0 j8 {; [; r6 C# L4 d
数值
! I7 n& g4 L. _2 f4 f8 s | ! J# {( Z9 Q+ f$ Z5 T
数值
) V/ X v& N$ ^5 `( I! c |
A*C*D(file:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif90) |
4 p$ a8 n0 t2 t |
2 X) e! ?4 }- h9 g7 w) _/ j. p- a |
8 ]6 K- Q! J/ D" q$ ]* Z, l& t |
' b1 X" Q, l2 B. @8 R; c/ m数值 1 J% j$ Q( i7 u I, i1 ^
|
! s- y9 K; y% E9 v& Z6 y |
4 q! ?% _4 y3 a1 O | 5 F5 Q0 H; t/ @6 W2 T/ V+ `1 r' `1 u
| 3 Q& G- t/ \' s3 J
|
+ u5 _8 F6 [( G& [1 F |
X2 |
) C% ~% A( q: H数值 ! V {+ V( w2 E7 u1 ?7 j7 [8 ^
|
) w6 W3 E6 r9 d# v; o3 T/ G2 T数值 * H) B1 J0 x' a# g
|
; k" S8 W8 s Z; G数值 6 q! P6 M5 E! T" e4 i6 {
| / P5 G$ I3 O2 M4 M* n* s
数值
: j Q: M& J+ r7 c7 j( p- s |
Deviance | + i' f/ n1 [. T. g* X2 w5 N0 h
数值
6 r$ b- F. X3 V6 E. w | . L( S5 ~; L7 F& I" ?) D9 W
数值 ' ~& n8 {0 o l- O# g
|
# D6 m5 x) F, U) R, k: v数值 9 R9 x: C- E% v' k: J
| . a* v" e$ w R) n5 I% ?+ w1 b
数值
9 V/ v$ G5 B# Y) g$ {+ g |
Decrease in Deviance | & P/ M9 T2 R7 p" `' M0 r
m
. q7 O* Q+ J* L& X. _* g# v- y |
, h9 }+ M9 k" Y% D; On ' k0 Z4 I+ q+ A' A3 \2 f; F
| 8 k8 _+ E$ s. O5 w
l
1 o9 p( j' u8 s/ H _) D4 } |
6 z1 l. q# ?" g- T# g! W! Hk 6 z$ h0 C: X7 z8 | ?5 n. K
|
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 |
. c, j n0 ~$ L: ~: NHelen,
4 R3 [( N" F8 d6 X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。6 O4 d1 v5 G. N Q- y
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。
( x$ }! R, k0 _& P- A8 U+ `在这个情形下,我会这样模拟:
: C' {% D3 l& S9 j4 ^. J/ SLevel 1, R0 p4 s$ s0 R5 y3 v, v5 A
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 24 [: r3 \# ^2 O0 U- W5 N
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)
! s- Q8 s, ^! O! oβ3j=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
, }, F; d/ k5 T/ y3 t. _! E
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
4 a' V6 B: {: `* b. V
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 * | z; n) I1 C! o8 Y6 x1 w
参数gfile:///C:/DOCUME%7E1/mnlaw/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image002.gif51就是你要的three-way interaction了。
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Kenny4 c* t& \1 U& s! M3 V
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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 + q# m5 R& y! I1 t
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