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Jk\QrQWUDQKFKҩS&iFEҧQYӁNK{QJÿҫ\ÿӫFKLWLӃWWKLӃXWK{QJWLQVӁOjPPҩW

WKrPNKRҧQJWKӡLJLDQOjPU}VӕOLӋXKRһFJk\QKҫPOүQWURQJYLӋFÿһWYұWWѭWKLF{QJ

FǊQJQKѭOjÿmWKLF{QJ QKѭQJGRÿӑFVDLEҧQYӁPjSKҧLWӕQWKrPFiFFKLSKtVӱD

3KkQWtFKQKkQWӕ NKiPSKi()$FKRFiFQKkQWӕ ÿiQKJLiVӵ WKjQKF{QJ

%ҧQJ 4 15 ӃWTXҧNLӇPÿӏQK.02 %DUWOHWWảV

Tӯ%ҧQJ NӃWTXҧNLӇPÿӏQK.02DQG%DUWOHWWV7HVWFKRWDWKҩ\ ắ +ӋVӕ.02 ,862 > 0,YuYұ\VӱGөQJSKkQWtFKQKkQWӕFKRQJKLrQFӭX

Qj\OjKRjQWRjQSKKӧS ắ LӇPÿӏQK%DUWOHWWảVWHVWYӟLPӭFờQJKƭD6LJ ,00 < 0,FKRWKҩ\FiFELӃQ

Tӯ bҧng kӃt quҧ cho thҩy: ắ 7ҥL(LJHQYDOXH 3,138 > 1 ắ 7әQJSKѭѫQJVDLWUtFKÿѭӧFOj62,755!ÿLӅXQj\FKӭQJWӓ62,755%

3KkQWtFKQKkQWӕ khҷQJÿӏnh CFA

KӃt quҧ kiӇPÿӏnh P{KuQK WKDQJÿREҵQJSKѭѫQJSKiSSKkQWtFKQKkQWӕ khҷQJÿӏQK&)$WK{QJTXDSKҫn mӅm AMOS 22

6DXNKLWLӃQKjQKSKkQWtFKQKkQWӕNKiPSKi()$NӃWTXҧSKkQWtFKWKjQK4

QKkQWӕÿѭӧFU~WWUtFKFiFELӃQQj\FQJYӟLFiFELӃQTXDQViWÿѭDYjRP{KuQK CFA

QKѭVDX ắ 1KkQWӕ ³7jLQJX\rQ ± Resource (RS)´ÿѭӧFÿROѭӡng bӣLFiFELӃn B22, B27,

B25, B30, B26; ắ 1KkQWӕ ³F{QJWiFSKӕLKӧS± Coordination (CD)´ÿѭӧFÿROѭӡng bӣLFiFELӃn

B12, B7, B9, B10, B11, B8, B20 ắ 1KkQWӕ ³6ӵWUuKRmQ-Obstruction ( OT)´ÿѭӧFÿROѭӡng bӣLFiFELӃn B18,

+97UҫQ7Kӏ7KX7UDQJ ắ 1KkQWӕ ³7KLӃWNӃ± Design (DS) ´ÿѭӧFÿROѭӡng bӣLFiFELӃn B5, B3, B4, B2,

B1 ắ 1KkQWӕ ³7KjQKF{QJ± Success 68´ÿѭӧFÿROѭӡng bӣLFiFELӃn C5, C3,

+uQK 4 8 ӃWTXҧSKkQWtFKP{KuQK&)$EDQÿҫXYӟLWUӑQJVӕFKѭDFKXҭQ

+uQK 4 9 KӃt quҧ SKkQWtFKP{KuQK&)$EDQÿҫu vӟi trӑng sӕ chuҭn KyD

*LiWUӏJLӟLKҥQ ӃWTXҧSKkQWtFK

.ӃWTXҧEDQÿҫXFiFWK{QJVӕÿӅXNK{QJWKӓDQrQFҫQÿѭӧFKLӋXFKӍQKGRÿy

EәVXQJPӕLWѭѫQJTXDQJLӳDFiFVDLVӕ(Xem +uQK 4.9)

+uQK 4 10 KӃt quҧ SKkQWtFKP{KuQK&)$KLӋu chӍnh vӟi trӑng sӕ FKѭDFKXҭn

+uQK 4 11 KӃt quҧ SKkQWtFKP{KuQK&)$hiӋu chӍnh vӟi trӑng sӕ chuҭQKyD

&0,1GI CMIN/df = 1,241 < 2 : WKӓDPmQ

%ҧQJ 4 20 +ӋVӕKӗLTX\FKѭDFKXҭQKyDFӫDP{KuQK&)$KLӋXFKӍQK

%ҧQJ 4 21 +ӋVӕKӗLTX\FKXҭQKyDFӫDP{KuQK&)$KLӋXFKӍQK

CiFWUӑQJVӕÿmFKXҭQKyDYjFKѭDFKXҭQKyDÿӅXFyêQJKƭDWKӕQJNr3- value < 0,GRÿyP{KuQK ÿҥWJLiWUӏKӝLWө ߩ ௖ ൌ ൣσ ௣ ௜ୀଵ ߣ ௜ ൧ ଶ ൣσ ௣ ௜ୀଵ ߣ ௜ ൧ ଶ ൅ ൣσ ௣ ௜ୀଵ ሺͳ െ ߣ ௜ ଶ ሻ ൧ ߩ ௩௖ ൌ σ ௣ ௜ୀଵ ߣ ଶ ௜ σ ௣ ௜ୀଵ ߣ ௜ ଶ ൅ൣσ ௣ ௜ୀଵ ሺͳ െ ߣ ௜ ଶ ሻ ൧

7URQJÿy ߣ ௜ OjWUӑQJVӕFKXҭQKyDFӫDELӃQTXDQViWWKӭL ͳ െ ߣ ௜ ଶ OjSKѭѫQJVDLFӫDVDLVӕÿROѭӡQJELӃQTXDQViWWKӭL

%ҧQJ 4 22 +ӋVӕWLQFұ\WәQJKӧSYjWәQJSKѭѫQJVDLWUtFK

Qua kӃt quҧ SKkQWtFKFKRWDWKҩy: ắ HӋ sӕ tin cұy tәng hӧp ࣋ ࢉ > 0,5 ắ TәQJSKѭѫQJVDLWUtFKFӫDFiFQKkQWӕ ࣋ ࢜ࢉ ÿӅu xҩp xӍ 0,5

1KѭYұ\WKDQJÿRFyWKӇ chҩp nhұQOjÿҥW\rXFҫu

4.8.3 KiӇPÿӏQKJLiWUӏ SKkQELӋt giӳDFiFNKiLQLӋPQJKLrQcӭu

%ҧQJ 4 23 LӇPWUDJLiWUӏSKkQELӋWFӫDFiFWKDQJÿR 0ӕLTXDQKӋ Estimate S.E C.R P-Value

RS(Resource) < > CD(Coordination) 0,207 0,079 2,604 0,009 RS(Resource) < > OT(Obstruction) 0,114 0,05 2,266 0,023 RS(Resource) < > DS(Design) 0,136 0,046 2,952 0,003 RS(Resource) < > SU(Success) 0,132 0,046 2,845 0,004 CD(Coordination) < > OT(Obstruction) 0,279 0,082 3,407 *** CD(Coordination) < > DS(Design) 0,269 0,074 3,618 *** CD(Coordination) < > SU(Success) 0,266 0,075 3,537 *** OT(Obstruction) < > DS(Design) 0,183 0,047 3,865 *** OT(Obstruction) < > SU(Success) 0,234 0,052 4,489 *** DS(Design) < > SU(Success) 0,268 0,048 5,568 ***

7DFy3-value < 0,05; C.R > ݐ ഀ మ ǡ௡ିଶ = 1,97; EiFEӓJLҧWKX\ӃW+RGRYұ\KӋVӕ WѭѫQJTXDQFӫDFiFFһSQKkQWӕNKiFELӋWVRYӟLYӟLÿӝWLQFұ\+ѫQQӳDKӋ VӕWѭѫQJTXDQJLӳDFiFQKkQWӕÿӅX'RYұ\P{KuQK ÿҥWJLiWUӏSKkQELӋW

&iFJLҧ thuyӃt : ắ *LҧWKLӃW+³7jLQJX\rQ ± Resource (RS)´ҧQKKѭӣQJGѭѫQJÿӃQ³C{QJ WiFSKӕLKӧS ± Coordination (CD)´ ắ *LҧWKLӃW2 (H2³7jLQJX\rQ ± Resource (RS)´ҧQKKѭӣQJGѭѫQJÿӃQ³6ӵWUuKRmQ- Obstruction (OT)´

+97UҫQ7Kӏ7KX7UDQJ ắ *LҧWKLӃW3 (H3³7jLQJX\rQ ± Resource (RS)´ҧQKKѭӣQJGѭѫQJÿӃQ³7KjQK F{QJ± Success (SU)´ ắ *LҧWKLӃW4 (H4): ³C{QJWiFSKӕLKӧS ± Coordination (CD)´ҧQKKѭӣQJGѭѫQJ ÿӃQ³6ӵWUuKRmQ- Obstruction (OT)´ ắ *LҧWKLӃW5 (H5): ³C{QJWiFSKӕLKӧS ± Coordination (CD)´ҧQKKѭӣQJGѭѫQJ ÿӃQ³TKjQKF{QJ± Success (SU)´ ắ *LҧWKLӃW6 (H6³7KLӃWNӃ ± Design (DS)´ҧQKKѭӣQJGѭѫQJÿӃQ³C{QJWiF SKӕLKӧS ± Coordination (CD)´ ắ *LҧWKLӃW7 (H7³7KLӃWNӃ ± Design (DS)´ ҧQKKѭӣQJGѭѫQJÿӃQ³7KjQK F{QJ± Success (SU)´ ắ *LҧWKLӃW8 (H8): ³7KLӃWNӃ ± Design (DS)´ҧQKKѭӣQJGѭѫQJÿӃQ³6ӵWUuKRmQ ± Obstruction (OT) (+) ắ *LҧWKLӃW9 (H9³7KLӃWNӃ ± Design (DS)´ҧQKKѭӣQJGѭѫQJÿӃQ³7jLQJX\rQ ± Resource (RS) (+) ắ *LҧWKLӃW10 (H10³6ӵWUuKRmQ± Obstruction (OT) ´ҧQKKѭӣQJGѭѫQJÿӃQ ³7KjQKF{QJ± Success (SU)´

+uQK 4 13 0{KuQK6(0FKѭDFKXҭQKyD

%ҧQJ 4 25 +ӋVӕ KӗLTX\FKѭDFKXҭQKyDFӫDP{KuQK6(0

CD < - RS 0,171 0,148 1,158 0,247 &KҩSQKұQÿѭӧF

OT < - CD 0,125 0,072 1,736 0,083 &KҩSQKұQÿѭӧF

4XDNӃWTXҧEҧQJJLҧWKX\ӃW+Fy3-YDOXH OӟQKѫQ QKLӅXVRYӟLYjJLҧWKX\ӃW+Fy3-YDOXH OӟQKѫQQKLӅXVRYӟL JLҧWKX\ӃW+FyP-YDOXH OӟQKѫQQKLӅXVRYӟL9uWKӃNK{QJFKҩSQKұQJLҧWKX\ӃWQj\'R ÿyWLӃQKjQKKLӋXFKӍQKP{KuQK 6(0PӟLPjNK{QJFyPӕLWѭѫQJTXDQWKHRJLҧWKX\ӃW++Yj+

+uQK 4 15 0{KuQK6(0KLӋXFKӍQKFKѭDFKXҭQKyD

+uQK 4 16 0{KuQK6(0KLӋXFKӍQKÿmFKXҭQKyD

%ҧQJ 4 27 +ӋVӕKӗLTX\FKѭDFKXҭQKyDFӫDP{KuQK6(0KLӋXFKӍQK 0ӕLTXDQKӋ Estimate S.E C.R P-value 1KұQ[pW

P{KuQK 6(0VDXNKLKLӋXFKӍQKFXӕLFQJFyChi-square/df = 1,606 50m; NLӃQWU~FNKiF!P

7KDPNK̫R3KͭOͭF$-7KHRTX\͇Wÿ͓QKV͙ 4Ĉ-BXD)

7KHRWULӃWOêVҧQ[XҩWPӟLOmQJSKtQrQÿѭӧFKLӇXOjEҩWNǤVӵNK{QJKLӋXTXҧQjRWURQJYLӋFVӱGөQJFiFPi\PyFWKLӃWEӏQJXӗQOӵFWLӅQEҥFWKӡLJLDQVӱGөQJYӕQOӟQKѫQQKӳQJQKXFҫXFҫQWKLӃWWURQJYLӋFKRjQWKjQKPӝWVҧQSKҭP/mQJSKt

+97UҫQ7Kӏ7KX7UDQJ EDRJӗPPҩWPiW YӅYұWFKҩWYjOjP FiFF{QJYLӋFNK{QJFҫQWKLӃWFiLPjWҥRWKrm FKLSKtSKiWVLQKQKѭQJNK{QJJLDWăQJWKrPJLiWUӏFӫDVҧQSKҭPTheo Koskela

1992 ) [6] 9uYұ\OmQJSKtSKҧLÿѭӧFÿӏQKQJKƭDQKѭOjEҩWNǤWәQWKҩWÿѭӧFVLQKUDEӣL FiFF{QJYLӋFWҥRUDFKLSKtQKѭQJNK{QJWăQJWKrPEҩWNǤJLiWUӏQjRFKRVҧQSKҭP WӯVӵÿiQKJLiFӫDFKӫÿҫXWѭ

Theo $ODUFyQ [7] KiLQLӋPOmQJSKtÿѭӧFPӣUӝQJQKѭVDX ĈӏQKQJKƭD ³%̭WFͱÿL͉XJuNKiFYͣLV͙O˱ͫQJW͙LWKL͋XFͯDWKL͇WE͓Y̵WOL XSKͭWQJYj WKͥLJLDQODRÿ͡QJÿ͋KRjQWRjQF̯QWKL͇WFKRV̫Q[X̭W´ ĈӏQKQJKƭD ³%̭WFͱÿL͉XJuNKiFYͣLV͙WL͉QW͙LWKL͋XWX\ Wÿ͙LFͯDFiFQJX͛QWjLQJX\rQ Y̵WOL XWKL͇WE͓YjQKkQO͹FF̯QWKL͇Wÿ͋WăQJWKrPJLiWU͓V̫QSḴP´

Trong P{KuQK VҧQ[XҩWWLQKJӑQNKiLQLӋPOmQJSKtWUӵFWLӃSOLrQTXDQÿӃQ YLӋFVӱGөQJQJXӗQWjLQJX\rQPjNK{QJ JLDWăQJJLiWUӏVҧQSKҭPFXӕLFQJĈLӅX Qj\NKiF YӟLTXDQÿLӇPYӅ OmQJSKtWK{QJWKѭӡQJFӫD TXi WUuQKVҧQ [XҩW, FiL Pj NK{QJFyQӛOӵFÿiQJNӇÿӇSKkQELӋWFiFKRҥWÿӝQJÿHPOҥLJLiWUӏYjNK{QJÿHPOҥL JLiWUӏ4XDQÿLӇPWUX\ӅQWKӕQJQKuQQKұQWҩWFҧFiFKRҥWÿӝQJNӃWKӧSQKѭPӝWEӭF WUDQKWRjQGLӋQYjWURQJÿyOmQJSKtÿѭӧFQKuQQKұQOjPӝWFKLSKtSKiWVLQKWәQJWKӇ FKRVҧQ[XҩW7ULӃWOêVҧQ[XҩWPӟL[HP[pWYjFKLWLӃWFiFPһWFӫDOmQJSKtTXDYLӋF [iFÿӏQKQKӳQJ KRҥWÿӝQJNK{QJÿHPOҥLVӵJLDWăQJJLiWUӏYjJLӟLWKLӋXELӋQSKiS PӟLFKRKҥQFKӃOmQJSKtQKѭWăQJWKrPFKLSKtFѫKӝLGһFELӋWGROmQJSKtWKӡLJLDQ YjPҩWPiWJLiWUӏWӗQWҥLWURQJP{KuQK WUX\ӅQWKӕQJ

Theo Safeer Ali Abbas Ali and Arun C (2012 )[5] /mQJSKtWKӡLJLDQWURQJ [k\GӵQJQJKƭDOj ³/mQJSKtWKͥLJLDQWURQJ[k\G͹QJFyQJKƭDOjOmQJSKtKR̩W ÿ͡QJWKHRÿ͓QKK˱ͣQJWKͥLJLDQJk\UDEͧLF{QJYL F NK{QJKL XTX̫KR̿FGRFK̩\NK{QJW̫L9L FE͝VXQJFyK WK͙QJFiFOmQJSKtWKͥLJLDQWURQJFiFJLDLÿR̩QNKiFQKDXFͯDG͹iQFX͙LFQJVͅJk\UDV͹FK̵PWU͍ÿiQJN͋FKRG͹iQ´

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QKͷQJQJ˱ͥLODRÿ͡QJFyWD\QJK͉FDRFRLOjY{tFKKR̿FOmQJSKt´

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- /jJLDLÿRҥQ FiFKҥQJPөFWKӵFKLӋQÿӗQJWKӡLQKѭ WKLF{QJ NӃWFҩXKRjQ WKLӋQ FѫÿLӋQ

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- /jJLDLÿRҥQWKLF{QJ NKyNKăQQKҩWFӫDPӝWGӵiQ

- 1KkQF{QJYұWWѭPi\PyFWKLӃWEӏ SKҧLÿѭӧFNӃWKӧSPӝWFiFKÿӗQJEӝYj QKӏSQKjQJ

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2 &KXNǤFӫDPӝWGӵiQ 1JXӗQ³%jLJLҧQJ3*676/ѭѫQJĈӭF/RQJ´11 + 3 &iFÿѫQYӏOLrQTXDQWKDPJLDYjRGӵiQ

*Ĉ 3KiW WULӇn kӃ hoҥch, thiӃt kӃ

Thӡi gian S ӵ JL D WăQ J Uӫ i ro

Thӡi kǤ rӫi ro Jk\ WiF ÿӝng cao nhҩt

KӃ hoҥch Thӵc hiӋQKRjQWKjQK

+uQK 2 3 &iFÿѫQYӏOLrQTXDQWKDPJLDYjRGӵiQ

%ҧQJ 2 2 7әQJKӧSPӝWVӕQJKLrQFӭXOLrQTXDQ

STT 7iFJLҧ 7rQQJKLrQFӭX 3KѭѫQJSKiSQJKLrQFӭX 0өFWLrXYjNӃWTXҧQJKLrQFӭX

Kenley(2005) ³4XDQWLI\LQJ/HYHOV of Wasted Time in Construction with Meta-$QDO\VLV´

3KѭѫQJSKiSSKkQWtFKWәQJKӧS ÿѭӧF iS GөQJ EDR JӗP WuP NLӃP Pm KyD Yj WKӕQJ Nr ÿӇ WәQJKӧSFiFSKiWKLӋQFӫDFiF QJKLrQ FӭX ÿm SKkQ WtFK PӭF WKӡLJLDQOmQJSKtWUѭӟFÿy

%jLEiRQj\SKkQWtFKWәQJKӧSÿiQKJLiFiF WjLOLӋXFyEiRFiRÿӏQKOѭӧQJPӭFÿӝOmQJSKt WKӡLJLDQWәQJKӧSFiFNӃWTXҧQJKLrQFӭXKLӋQ

Fy FXQJ FҩS PӝW FiL QKuQ WәQJ KӧS YӅ ÿӏQK OѭӧQJÿһFWtQKFӫDOmQJSKt

1ӝLGXQJFKӍUDWuQKWUҥQJNKiFQKDXFӫDNLӃQ WKӭFYӅÿӏQKOѭӧQJFӫDWKӡLJLDQOmQJSKt ӃWTXҧFӫDFiFQJKLrQFӭXULrQJOҿÿmJLҧL TX\ӃW PӝW ORҥW FiF FkX KӓL QJKLrQ FӭX (Rosenthal 1991; Abelson 1995)

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