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m
e
r
i
c
a
.
T
h
e
t
h
r
ee
a
s
p
e
ct
s
a
r
e
a
f
f
e
c
t
i
v
e
c
o
mmitme
n
t
,
c
o
n
ti
n
u
a
n
c
e
c
o
mmitme
n
t
,
an
d
n
o
r
ma
tiv
e
co
mmit
me
n
t
[6]
.
M
e
y
e
r a
nd
A
l
l
e
n
[11]
f
ur
t
h
e
rm
o
r
e
e
x
p
lai
n
e
d
af
f
ec
tiv
e co
mmit
me
n
t at
ti
tu
d
e
as
th
e
p
o
s
itiv
e
as
s
o
c
iatio
n
to
w
ar
d
s
i
n
d
iv
id
u
al ac
tiv
it
ie
s
in
r
e
la
tio
n
w
ith
t
h
e
o
p
p
o
r
tu
n
i
tie
s
; c
o
n
ti
n
u
a
n
c
e
c
o
mmitme
n
t as
t
h
e
j
u
d
g
e
me
n
t f
o
r
th
e
e
mp
lo
y
e
es
’
ad
v
an
t
ag
e
a
n
d
d
i
s
a
d
v
a
nt
a
g
e
i
n
re
l
a
t
i
o
n
t
o
t
he
i
r w
i
l
l
i
ng
ne
s
s
t
o
re
t
a
i
n
t
he
i
r w
o
rk
i
n
t
he
o
rg
a
n
i
z
a
t
i
o
n;
a
nd
no
rm
a
t
i
v
e
c
o
mmitme
n
t as
t
h
e
e
mp
lo
y
e
es
’
o
b
lig
at
io
n
to
s
e
r
v
e
c
lie
n
ts
p
r
o
f
e
s
s
io
n
al
ly
in
a
n
y
o
p
p
o
r
tu
n
it
ie
s
.
I
n
s
p
i
te
o
f
th
e
f
ac
t
th
at
o
r
g
a
n
iz
at
io
n
al
c
o
mmi
tme
n
t
is
m
u
lt
i
-
d
i
m
e
ns
i
o
n
a
l
,
t
he
re
ha
s
b
e
e
n f
e
w
re
s
e
a
rc
he
s
t
h
a
t
ex
am
i
n
e
t
h
o
s
e
t
h
r
e
e co
m
p
o
n
en
t
s
al
t
o
g
et
h
er
.
M
o
s
t
o
f
t
h
e
r
e
s
ea
r
c
h
e
s
ex
a
m
i
n
ed
t
h
e
i
n
f
l
u
en
ce
o
f
a
f
f
ec
t
i
v
e
c
o
m
m
i
t
m
e
n
t
a
n
d
co
n
t
i
n
u
an
c
e co
m
m
i
t
m
en
t
[
12]
.
T
he
e
m
p
l
o
y
e
e
s
’
c
o
nt
ri
b
u
t
i
o
n a
nd
i
nv
o
l
v
e
m
e
nt
i
n o
rg
a
ni
z
a
t
i
o
n w
o
u
l
d
b
e
g
re
a
t
e
r w
he
n t
he
y
f
e
e
l
t
he
y
a
r
e
s
uppo
r
t
ed
b
y
t
h
e o
r
g
an
i
za
t
i
o
n
[1
3]
.
T
he
o
rg
a
ni
z
a
t
i
o
n s
u
p
p
o
rt
s
c
a
n i
m
p
ro
v
e
t
he
i
r c
o
m
m
i
t
m
e
nt
i
n t
he
i
r
j
o
b
.
I
t
i
s
e
ve
n
g
e
t
t
i
n
g gr
e
a
t
e
r
w
h
e
n
t
h
e
y
a
r
e
pr
ovi
d
e
d
w
i
t
h
g
ood
w
or
k
i
n
g c
on
d
i
t
i
on
[14
]
.
A
c
c
or
d
i
n
g
t
o
D
a
vi
d
[15]
,
t
h
e
f
ac
to
r
s
af
f
ec
tin
g
t
h
e
o
r
g
a
n
iz
atio
n
a
l c
o
mmi
tm
e
nt
a
re
a
m
o
n
g
o
t
he
rs
p
e
r
s
o
n
a
l c
h
a
r
ac
te
r
is
t
ic
s
.
I
n
p
e
r
s
o
n
al c
h
a
r
ac
te
r
is
t
ic
s
w
o
r
k
mo
tiv
atio
n
a
n
d
j
o
b
s
atis
f
ac
tio
n
a
r
e
r
e
la
te
d
to
f
o
r
mi
n
g
t
h
e
c
o
mmi
tme
n
t
o
f
th
e
e
mp
lo
y
ee
s
.
L
a S
ig
n
p
r
o
p
o
s
ed
t
h
at
j
o
b
s
atis
f
ac
tio
n
p
l
ay
s
imp
o
r
t
a
n
t
r
o
le
i
n
t
h
e
c
o
mmitme
n
t
to
w
ar
d
s
t
h
e o
r
g
a
n
i
z
at
i
o
n
[16]
.
T
h
is
s
ta
te
me
n
t
w
as
s
u
p
p
o
r
te
d
b
y
th
e
r
e
s
u
l
ts
o
f
in
te
r
v
ie
w
an
d
o
b
s
e
rv
a
t
i
o
n o
n
t
he
m
a
t
t
e
r
.
1
.
1.
Te
ac
h
e
r
s
’
Wo
r
k
M
o
ti
v
ati
o
n
an
d
O
r
gan
i
z
ati
o
n
al
C
o
mm
i
tm
e
n
t
O
n
e o
f
t
h
e k
e
y
f
a
ct
o
r
s
th
at
i
n
f
l
u
e
n
ce
t
h
e
o
r
g
a
n
i
za
tio
n
al c
o
m
mit
me
n
t
is
t
h
e
mo
tiv
at
io
n
r
e
l
ate
d
to
t
h
e
c
o
mmitme
n
t f
o
r
m
at
io
n
[1
7]
.
A
c
co
r
d
i
n
g
t
o
G
e
o
r
g
e an
d
J
o
n
e
s
[18]
,
it is
s
a
id
t
h
at
w
or
k
m
ot
i
va
t
i
on
re
f
e
rs
t
o
t
he
p
s
y
c
ho
l
o
g
i
c
a
l
s
t
re
ng
t
h o
f
c
e
rt
a
i
n i
nd
i
v
i
d
u
a
l
,
w
hi
c
h d
e
t
e
r
m
i
n
e
hi
s
b
e
ha
v
i
o
r i
n
a
n o
rg
a
n
iz
at
io
n
,
le
v
e
l o
f
ef
f
o
r
ts
an
d
p
e
r
s
i
s
t
e
n
ce i
n
o
v
e
r
c
o
m
i
n
g
t
h
e p
r
o
b
l
e
m
s
,
a
s
w
el
l
a
s
s
el
f
-
d
e
te
r
mi
n
at
io
n
to
w
ar
d
s
t
h
e
d
i
me
n
s
io
n
s
o
f
th
e
i
r
j
o
b
s
.
M
o
t
i
v
a
t
i
o
n
i
s
t
h
e p
r
o
c
es
s
t
h
a
t
en
co
u
r
a
g
e
s
,
g
u
i
d
es
,
m
ai
n
t
a
i
n
s
;
a
s
w
e
l
l
a
s
k
e
ep
i
n
g
t
h
e
r
e
s
o
u
r
ce
s
o
n
t
h
e
r
i
g
h
t tr
a
c
k
[
1
9]
.
T
h
e
f
o
c
u
s
o
n
t
h
e g
o
a
l
s
o
f
t
h
e o
r
g
an
i
za
t
i
o
n
r
ef
l
ect
s
t
h
e
b
eh
a
v
i
o
r
i
n
r
el
a
t
i
o
n
t
o
t
h
e j
o
b
.
F
o
r
e
x
a
m
p
l
e,
a
mo
tiv
ate
d
i
n
d
iv
id
u
al w
il
l d
o
h
is
b
e
s
t in
ac
c
o
mp
lis
h
i
n
g
h
is
ta
s
k
s
.
I
t is
e
x
p
e
c
te
d
b
y
th
e
o
r
g
a
n
i
za
tio
n
t
h
a
t a
ll
t
h
e
e
mp
lo
y
ee
s
ar
e
h
ig
h
ly
mo
tiv
ate
d
,
t
h
e
re
b
y
re
s
u
l
t
s
i
n
hi
g
h
-
c
o
mm
itte
d
e
mp
lo
y
ee
s
.
Th
e
p
r
o
b
le
ms
o
n
mo
tiv
at
io
n
i
n
cer
t
a
i
n
i
n
d
i
v
i
d
u
al
s
a
n
d
t
h
e
j
o
b
ci
r
c
u
m
s
t
an
ce
s
h
a
v
e
b
een
t
h
e b
a
s
i
c i
s
s
u
es
i
n
an
o
r
g
an
i
za
t
i
o
n
.
I
t
i
s
r
ea
s
o
n
a
b
l
e
s
in
c
e
mo
tiv
atio
n
is
a s
i
g
n
if
ic
a
n
t v
a
r
iab
le
i
n
j
o
b
p
e
r
f
o
r
m
a
n
c
e
an
d
i
n
t
h
e
r
es
u
l
t
s
o
f
t
h
e p
e
r
f
o
r
m
a
n
ce t
h
at
i
s
a
c
hi
e
v
e
d
by
a
n
y
i
n
di
v
i
du
a
l
[20]
.
W
o
r
k
mo
tiv
atio
n
c
an
als
o
b
eco
me
th
e
e
x
p
e
c
tatio
n
o
f
ev
e
r
y
e
mp
lo
y
ee
to
b
e
th
e
ir
d
r
i
v
in
g
f
o
r
ce
in
a
c
h
i
e
v
in
g
th
eir
g
o
a
l
s
[
1
]
.
M
o
tiv
atio
n
m
ay
b
ec
o
me
th
e
d
r
iv
i
n
g
f
o
r
c
e
o
f
an
y
in
d
iv
id
u
al
,
e
it
h
e
r
p
h
y
s
ic
ally
o
r
p
s
y
c
h
o
lo
g
ic
ally
,
t
o
a
ch
i
e
v
e
o
n
e o
r
m
o
r
e g
o
al
s
i
n
f
u
l
f
i
l
l
i
n
g
t
h
ei
r
n
e
ed
s
o
r
ex
p
ec
t
a
t
i
o
n
[21]
.
A
cc
o
r
d
i
n
g
t
o
D
eci
an
d
R
y
a
n
[22]
,
a
mo
tiv
ate
d
p
e
r
s
o
n
is
i
n
t
r
i
n
s
ic
al
ly
ab
le
to
e
n
jo
y
h
is
w
o
r
k
,
a
n
d
t
h
is
e
n
j
o
y
m
e
n
t c
a
n
b
e
s
e
e
n
i
n
h
is
b
e
h
av
io
r
.
I
n
tr
in
s
i
c
mo
tiv
at
io
n
is
t
h
e
f
o
r
m
o
f
ap
p
r
e
c
ia
tio
n
f
r
o
m
a
n
i
n
d
iv
id
u
a
l
w
h
e
n
h
e
p
e
r
f
o
r
ms
h
is
j
o
b
s
an
d
f
i
n
d
s
s
atis
f
ac
tio
n
i
n
d
o
i
n
g
i
t.
1
.
2.
Te
ac
h
e
r
s
’
Jo
b
S
ati
s
fa
c
ti
o
n
an
d
O
r
g
an
i
z
ati
o
n
al
C
o
m
m
i
tme
n
t
J
o
b
s
atis
f
ac
tio
n
is
a
ls
o
th
e
k
e
y
f
ac
to
r
i
n
f
lu
e
n
c
i
n
g
o
r
g
a
n
iz
at
io
n
al c
o
mmi
t
me
n
t.
A
tti
tu
d
e
a
t w
o
r
k
,
s
u
c
h
as
j
o
b
s
atis
f
ac
tio
n
,
s
e
r
v
e
s
as
th
e
c
o
mp
o
n
e
n
t t
h
at af
f
e
c
ts
th
e
c
o
mmit
me
n
t to
w
ar
d
s
t
h
e
j
o
b
[23]
a
n
d
i
s
s
ig
n
if
ic
a
n
t
ly
co
r
r
e
l
ate
d
w
ith
o
r
g
a
n
i
za
tio
n
al c
o
mmi
tme
n
t
[24
]
.
C
o
l
q
u
i
t
,
L
eP
i
n
e,
an
d
Wes
s
o
n
i
n
t
h
e
i
r
r
es
ea
r
c
h
e
n
t
itle
d
Int
e
gr
at
i
v
e
Mode
l
of
O
r
gani
z
a
t
i
ona
l
B
e
hav
i
or
p
r
o
p
o
s
e
d
th
at j
o
b
s
atis
f
ac
tio
n
d
i
r
e
c
tly
af
f
e
c
ts
o
r
g
a
n
iz
atio
n
a
l c
o
mmi
tme
n
t.
E
mp
lo
y
e
e
s
w
h
o
ar
e
h
ig
h
ly
s
atis
f
ie
d
te
n
d
to
h
av
e
mo
r
e
c
o
n
c
e
r
n
w
it
h
t
h
e
or
g
a
n
iz
atio
n
a
n
d
te
n
d
to
b
e
f
u
lly
co
mmitte
d
to
th
e
o
r
g
a
n
i
z
atio
n
.
T
h
e
r
e
f
o
r
e
,
t
h
e
o
r
g
a
n
i
za
tio
n
,
i
n
w
h
ic
h
t
h
e
e
mp
lo
y
ee
s
ar
e
h
i
g
h
ly
s
atis
f
ie
d
,
is
li
k
e
ly
to
imp
r
o
v
e
th
e
i
r
ac
h
ie
v
e
me
n
t a
n
d
p
r
o
d
u
c
tiv
ity
,
as
w
e
ll as
r
e
d
u
c
i
n
g
t
h
e
r
a
t
e
of
t
u
r
n
ove
r
.
A
c
c
or
d
i
n
g
t
o T
uh
um
e
n
a
[25
]
,
le
s
s
s
atis
f
ie
d
e
mp
lo
y
ee
s
ma
y
le
ad
to
d
e
la
y
s
an
d
a
b
s
e
nt
e
e
i
s
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RE
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3
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1.
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q
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T
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3.
1
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Evaluation Warning : The document was created with Spire.PDF for Python.
I
SSN
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2
252
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88
22
I
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5
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1
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3
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M
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Re
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tio
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il
l b
e
.
Tab
le
4
.
T
h
e
A
n
aly
s
is
r
e
s
u
lts
o
f
t
h
e
R
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lat
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V
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r
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C
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M
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P
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29
29
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29
29
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J
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n
29
29
29
Evaluation Warning : The document was created with Spire.PDF for Python.
I
JE
R
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I
SSN:
2252
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8822
T
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n
f
lu
e
n
c
e
o
f
te
ac
h
e
r
s
’
w
o
r
k
mo
tiv
atio
n
a
n
d
te
ac
h
e
r
s
’
j
o
b
mo
tiv
atio
n
to
w
ar
d
s
o
r
g
a
n
i
zat
io
n
al c
o
mmi
tme
n
t w
i
t
h
R
S
qua
r
e
v
a
l
ue
of
0
.
386.
I
t
m
e
a
n
s
t
ha
t
t
h
e
r
e
w
a
s
a
n
i
n
f
lu
e
n
c
e
te
ac
h
e
r
s
’
w
o
r
k
mo
tiv
a
tio
n
a
n
d
te
ac
h
e
r
s
’
j
o
b
s
atis
f
ac
tio
n
as
mu
c
h
as
3
8
.
6
% t
o
w
a
r
ds
o
rga
ni
z
a
t
i
o
n
a
l
c
o
mmitme
n
t
.
T
h
e
r
e
s
t
p
e
r
c
e
n
t
ag
e
,
as
mu
c
h
as
6
1
.
4%,
w
a
s
i
n
f
l
ue
n
c
e
d by
o
t
h
e
r
v
a
r
i
a
b
l
e
s
a
pa
rt
f
r
om
t
h
e
v
ar
i
ab
le
s
b
e
in
g
s
tu
d
ie
d
.
H
av
in
g
t
h
e
A
n
o
v
a Te
s
t
r
e
s
u
lt F
as
m
u
c
h
as
8
.
1
7
3
w
it
h
t
h
e
s
ig
n
if
ic
an
c
e
le
v
e
l o
f
0
.
002
(<
0
.
0
1
)
,
t
h
e r
e
g
r
es
s
i
o
n
m
o
d
el
c
a
n
b
e
u
s
ed
t
o
p
r
ed
i
c
t
t
h
e t
ea
c
h
e
r
s
’
o
r
g
a
n
i
z
a
t
i
o
n
a
l
c
o
m
m
i
t
m
e
n
t
i
n
E
x
t
r
a
or
di
n
a
r
y
S
c
h
ool
.
Fr
o
m
t
h
e
r
e
su
l
t
s o
f
t
h
e
a
n
a
ly
s
is
,
it c
a
n
b
e
co
n
c
lu
d
e
d
t
h
at
te
ac
h
e
r
s
’
w
o
r
k
mo
tiv
at
io
n
a
n
d
te
ac
h
e
r
s
’
j
o
b
s
atis
f
ac
tio
n
s
imu
lt
a
n
e
o
u
s
l
y
af
f
ec
t t
h
e
te
ac
h
e
r
s
’
o
r
g
a
n
iz
atio
n
a
l c
o
mmi
tme
n
t i
n
E
x
t
r
a
or
di
n
a
r
y
S
c
h
ool
.
Tab
le
5
.
R
e
s
u
lts
o
f
M
u
ltip
le
R
e
g
r
e
s
s
io
n
Te
s
t (
M
o
d
e
l S
u
mm
a
r
y
)
M
o
de
l
S
u
m
mar
y
M
ode
l
R
R S
q
u
a
re
A
d
j
u
st
e
d
R
S
qu
a
r
e
S
t
d
.
E
rro
r
o
f
t
h
e E
s
t
i
ma
t
e
C
h
a
n
g
e
S
t
a
t
is
tic
s
R S
q
u
a
re
C
h
a
nge
F
C
h
a
nge
d
f1
d
f2
S
i
g.
F
C
h
a
nge
1
.
621
a
.
386
.
339
4.
372
.
386
8.
173
2
26
.
002
Tab
le
6
.
R
e
s
u
lts
o
f
M
u
ltip
le
R
e
g
r
e
s
s
io
n
Te
s
t (
A
n
o
v
a)
A
NO
VA
b
M
ode
l
S
um
of
S
q
ua
r
e
s
Df
M
e
a
n S
qu
a
r
e
F
Si
g
.
1
R
e
g
r
e
s
s
i
o
n
312.
40
0
2
156.
20
0
8.
173
.
002
a
R
e
s
i
d
u
a
l
496.
91
0
26
19.
112
T
ot
a
l
809.
31
0
28
T
h
e
r
e
s
ul
t
s
a
b
o
ve
a
r
e
s
uppo
r
t
e
d by
pr
e
v
i
o
us
r
es
ea
r
ch
es
t
h
a
t
ar
e
w
o
r
k
mo
tiv
atio
n
a
n
d
j
o
b
s
atis
f
ac
tio
n
af
f
e
c
t o
r
g
a
n
i
za
tio
n
al
c
o
mmit
me
n
t
[31]
.
O
n
e
o
f
th
e
f
ac
to
r
s
o
f
e
mp
lo
y
ee
s
’
co
mmit
me
n
t
is
t
h
e
mo
tiv
atio
n
r
e
l
ate
d
to
t
h
e
c
o
mmit
me
n
t
[1
7]
.
Bur
t
o
n
e
t
a
l.
,
[32]
su
g
g
e
st
s
t
h
at
em
p
l
o
y
ee
s
w
ith
h
ig
h
mo
tiv
at
io
n
w
ill
h
a
v
e
a
s
t
ro
ng
c
o
mm
it
me
n
t
a
l
s
o t
ot
h
e
or
ga
n
i
z
a
t
i
on
.
A
mo
tiv
a
tio
n
p
r
o
b
le
m i
n
i
n
d
iv
id
u
a
l l
if
e
a
n
d
at
w
o
r
k
is
a b
as
ic
p
r
o
b
le
m.
T
h
is
is
n
o
r
mal s
i
n
c
e
mo
tiv
atio
n
is
a
n
i
mp
o
r
ta
n
t v
ar
iab
le
at w
o
r
k
a
n
d
o
u
tp
u
t o
f
w
o
r
k
ac
h
ie
v
e
d
b
y
an
i
nd
i
v
i
d
u
a
l
a
ny
w
he
re
he
w
o
rk
s
[22]
.
B
es
i
d
e
s
,
t
h
e l
e
a
de
r
of
a
n
o
r
ga
ni
z
a
t
i
o
n
i
s
r
e
qui
r
e
d t
o
gui
de
a
n
d i
s
ex
p
ec
t
ed
b
e a
g
o
o
d
r
o
l
e
m
o
d
el
f
o
r
t
h
e
em
p
l
o
y
ee
s
,
t
o
m
o
t
i
v
a
t
e t
h
e
m
.
T
h
e l
e
a
d
er
s
h
o
u
l
d
e
n
co
u
r
a
g
e
h
i
s
e
mp
lo
y
ee
s
’
mo
tiv
atio
n
a
n
d
t
h
u
s
ma
n
if
e
s
t t
h
e
i
r
c
o
mmit
me
n
t
t
o
th
e
o
r
g
a
n
i
zat
io
n
.
La
m
a
n
d
Za
n
g
[3
3]
,
w
h
o
s
h
o
w
f
ac
to
r
s
o
f
jo
b
s
atis
f
actio
n
a
r
e
s
ig
n
if
ic
a
n
tly
co
r
r
e
l
ate
d
w
ith
o
r
g
a
n
iz
atio
n
a
l c
o
mmi
tme
n
t.
C
o
lq
u
i
t,
L
e
P
in
e
,
a
n
d
W
e
s
s
o
n
,
i
n
t
h
e
i
r
r
e
s
e
ar
c
h
e
n
t
it
le
d
Int
e
gr
at
i
v
e
Mode
l
o
f
O
r
gani
z
at
i
onal
B
e
ha
v
i
or
e
x
p
la
i
n
e
d
t
h
at
j
o
b
s
atis
f
ac
tio
n
im
me
d
ia
te
ly
af
f
e
c
ts
th
e
o
r
g
a
n
i
z
atio
n
a
l c
o
mmi
tme
n
t
.
H
ig
h
ly
s
atis
f
ie
d
e
mp
lo
y
e
e
s
te
n
d
to
c
o
n
c
e
r
n
mo
r
e
w
it
h
t
h
e
o
r
g
a
n
i
za
tio
n
,
a
n
d
t
h
u
s
b
e
co
me
mo
r
e
c
o
mmitte
d
to
t
he
o
rg
a
ni
z
a
t
i
o
n
.
I
n o
t
he
r w
o
rd
s
,
s
a
t
i
s
f
i
e
d
w
o
rk
e
rs
i
n a
n o
r
g
a
ni
z
a
t
i
o
n w
i
l
l
l
e
a
d
t
o
i
nc
re
a
s
i
n
g
a
c
h
i
e
v
e
m
e
nt
,
i
m
pr
ove
d
p
r
od
u
c
t
i
vi
t
y
,
a
n
d l
e
s
s
t
ur
n
ove
r
.
T
h
e
r
e
s
u
l
t
s
o
f
t
h
e r
e
s
e
a
r
c
h
a
r
e
r
el
ev
an
t
t
o
G
u
n
l
u
’
s
,
M
eh
m
ed
’
s
,
a
n
d
P
e
r
c
i
n
’
s
o
p
i
n
i
o
n
[24]
w
h
ic
h
s
aid
t
h
a
t j
o
b
s
atis
f
ac
tio
n
s
ig
n
if
ic
a
n
tly
in
f
lu
e
n
c
e
th
e
o
r
g
a
n
iz
at
io
n
a
l c
o
mmi
tme
n
t
.
J
o
b
s
atis
f
ac
tio
n
r
e
f
le
c
ts
a
p
er
s
o
n
’
s
f
eel
i
n
g
t
o
w
a
r
d
s
t
h
e
j
o
b
.
A
s
atis
f
ie
d
e
mp
lo
y
e
e
w
i
ll b
e
mo
r
e
co
mmit
te
d
to
th
e
o
r
g
a
n
i
za
tio
n
[
34]
.
P
r
o
mis
i
n
g
s
al
a
r
ie
s
a
n
d
p
r
o
mo
tio
n
s
c
a
n
a
ls
o
af
f
ec
t t
h
e
e
mp
lo
y
ee
s
’
lo
y
alt
y
to
th
e
o
r
g
a
n
i
zat
io
n
[35]
.
M
ax
i
ma
lly
o
tiv
ate
d
an
d
s
a
tis
f
ie
d
te
ac
h
e
r
s
al
lo
w
th
e
o
r
g
a
n
i
z
atio
n
to
ac
h
ie
v
e
th
e
g
o
als
mo
r
e
e
as
ily
.
A
s
t
h
e
r
es
o
u
r
c
es
o
f
t
h
e
ed
u
ca
t
i
o
n
a
l
i
n
s
t
i
t
u
t
e
f
o
r
s
t
u
d
en
t
s
w
i
t
h
s
p
e
ci
a
l
n
eed
s
,
t
ea
ch
e
r
s
a
r
e
e
x
p
ect
ed
t
o
s
h
o
w
a
g
o
o
d
co
mmitme
n
t
i
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o
r
d
e
r
to
r
e
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t
h
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v
is
io
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m
is
s
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a
n
d
o
b
j
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tiv
e
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o
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u
c
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i
n
E
xt
r
a
or
d
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n
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y
S
c
h
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.
T
e
a
c
h
er
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o
f
E
x
t
r
a
o
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d
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h
e f
a
c
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t
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r
s
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c
h
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p
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ci
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l
n
eed
s
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u
c
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tu
d
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ts
w
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is
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e
af
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me
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lly
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A
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s.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
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88
22
I
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f
f
i
c
i
en
t
s
,
r
ea
c
h
i
n
g
0
.
266 a
n
d
0
.
145
(
p
o
s
i
t
i
v
e i
n
f
l
u
e
n
ce
)
r
es
p
ect
i
v
el
y
.
T
h
e i
n
f
l
u
e
n
ce
/
e
f
f
ec
t
i
v
e
co
n
t
r
i
b
u
t
i
o
n
(
S
E
-
s
u
m
b
a
n
ga
n e
f
e
kt
i
f
) of
bo
t
h
v
ar
i
ab
le
s
,
i.
e
.
w
o
r
k
mo
tiv
atio
n
(
S
E
1
) a
nd j
o
b
s
atis
f
ac
tio
n
(
S
E
2
)
to
o
r
g
a
n
iz
atio
n
a
l c
o
mmit
me
n
t o
f
th
e
te
ac
h
e
r
s
i
n
E
x
t
r
a
o
rd
i
na
ry
S
c
ho
o
l
s
re
a
c
h
2
8
.
367
a
n
d
10
.
26 f
o
r
S
E
1
a
n
d S
E
2
,
r
e
s
p
e
c
tiv
e
l
y
.
Te
ac
h
e
r
s
’
w
o
r
k
mo
tiv
atio
n
h
a
s
g
r
ea
t
e
r
i
n
f
l
u
e
n
ce
t
o
w
a
r
d
s
o
r
g
an
i
z
at
i
o
n
a
l
c
o
m
m
i
t
m
e
n
t
c
o
m
p
ar
e
d
t
o
t
h
e
i
n
f
l
u
e
n
ce
o
f
t
e
a
c
h
e
r
s
’ j
ob
s
atis
f
ac
tio
n
to
it.
H
o
w
ev
e
r
,
b
o
th
v
ar
iab
le
s
s
h
o
w
th
at t
h
e
p
r
o
b
le
ms
o
f
w
o
r
k
mo
tiv
atio
n
a
n
d
j
o
b
s
atis
f
ac
tio
n
i
n
a
n
or
g
a
n
i
z
a
t
i
on
be
c
om
e
t
h
e
p
oi
n
t
of e
m
p
h
a
s
i
s
i
n
t
h
e
e
ff
or
t
s
t
o ove
r
c
om
e
a
n
y
or
g
a
n
i
z
a
t
i
on
a
l
pr
obl
e
m
s
,
e
s
p
ec
ially
o
r
g
a
n
iz
atio
n
a
l c
o
mm
it
me
n
t
o
f
t
he
t
e
a
c
he
rs
i
n
E
xt
ra
o
r
di
na
r
y
S
c
h
o
o
l
1 B
a
nt
ul
Y
o
g
y
a
ka
r
t
a
.
W
o
r
k
mo
tiv
at
io
n
a
n
d
j
o
b
s
atis
f
ac
tio
n
a
r
e
n
o
t
t
h
e
o
n
l
y
v
ar
iab
le
s
t
h
at
i
n
f
lu
e
n
c
e
te
ac
h
e
r
s
’
o
r
g
a
n
iz
atio
n
a
l c
o
mmit
me
n
t.
F
r
o
m t
h
e
r
e
s
u
lts
o
f
th
is
r
e
s
e
a
r
c
h
,
o
t
h
e
r
v
a
r
i
ab
le
s
c
an
b
e
in
f
lu
e
n
t
ia
l f
ac
to
r
s t
o
o
r
ga
ni
z
a
t
i
o
n
a
l
c
o
m
m
i
t
m
e
n
t
,
s
uc
h a
s
pe
r
s
o
n
a
l
c
h
a
ra
c
t
e
ri
s
t
i
c
s
(a
ge
,
w
o
r
ki
n
g pe
r
i
o
d,
l
e
v
e
l
of
e
duc
a
t
i
o
n
,
ge
nde
r,
a
n
d
r
ac
e
)
,
j
o
b
c
h
a
r
ac
te
r
is
t
ic
s
(
c
lar
ity
o
f
d
u
tie
s
,
r
o
le
s
u
itab
i
lit
y
,
an
d
j
o
b
c
h
al
le
n
g
e
s
)
,
s
t
r
u
c
tu
r
al c
h
a
r
ac
te
r
is
tic
s
,
w
o
r
k
i
n
g
ex
p
er
i
en
ce
,
a
s
w
e
l
l
a
s
n
a
t
u
r
es
a
n
d
q
u
al
i
t
i
e
s
o
f
t
h
e e
x
p
e
r
i
e
n
c
es
i
n
t
h
e j
o
b
[17]
.
4.
CO
NCL
USSIO
N
A
c
co
r
d
i
n
g
to
t
h
e
r
e
s
u
lts
o
f
th
e
d
ata
a
n
a
ly
s
is
an
d
d
is
c
u
s
s
io
n
o
f
th
is
r
e
s
e
ar
c
h
,
it c
a
n
b
e
co
n
c
lu
d
e
d
th
at
s
imu
l
ta
n
e
o
u
s
ly
,
te
ac
h
e
r
s
’
w
o
r
k
mo
tiv
at
io
n
a
n
d
s
a
tis
f
ac
tio
n
a
r
e
s
ig
n
if
i
c
a
n
tly
p
o
s
itiv
e
co
r
r
e
l
ate
d
w
it
h
t
h
e
o
r
g
a
n
iz
atio
n
a
l c
o
mmi
tme
n
t
.
T
h
e
h
ig
h
e
r
t
h
e
te
ac
h
e
r
s
’
w
o
r
k
mo
tiv
atio
n
a
n
d
s
at
is
f
ac
tio
n
t
h
ey
ar
e
,
t
h
e
h
i
g
h
e
r
t
h
e
o
r
g
a
n
iz
at
io
n
a
l c
o
mmi
tme
n
t
it w
il
l b
e
.
R
ev
e
r
s
e
l
y
,
t
h
e
lo
w
e
r
t
h
e
te
ac
h
e
r
s
’
w
o
r
k
mo
tiv
atio
n
a
n
d
s
at
is
f
ac
tio
n
ar
e,
t
h
e
lo
w
e
r
t
h
e
o
r
g
a
n
iz
at
io
n
al c
o
mm
it
me
n
t i
t w
ill
b
e
.
T
h
e
r
e
is
a
h
ig
h
s
ig
n
if
ic
an
t p
o
s
it
iv
e
co
r
r
e
lat
io
n
b
e
t
w
ee
n
te
ac
h
e
r
s
’
w
o
r
k
mo
tiv
atio
n
a
n
d
o
r
g
a
n
iz
at
io
n
al
c
o
mmitme
n
t
.
T
h
e
h
ig
h
e
r
t
h
e
te
ac
h
e
r
s
’
w
o
r
k
mo
tiv
atio
n
it is
,
t
h
e
h
ig
h
e
r
t
h
e
o
r
g
a
n
i
zat
io
n
al c
o
mmi
tme
n
t
it
is
,
t
h
e
lo
w
e
r
t
h
e
te
ac
h
e
r
s
’
w
o
r
k
mo
tiv
at
io
n
,
t
h
e
lo
w
e
r
t
h
e
o
r
g
a
n
i
za
tio
n
a
l c
o
mmi
tme
n
t
t
h
e
y
w
ill b
e
.
T
h
e
r
e
i
s
h
ig
h
ly
s
ig
n
if
ic
a
n
t p
o
s
it
iv
e
co
r
r
e
lat
io
n
b
e
tw
e
e
n
te
ac
h
e
r
s
’
j
o
b
s
atis
f
ac
tio
n
w
it
h
t
h
e
o
r
g
a
n
i
za
tio
n
a
l
c
o
mmi
tme
n
t.
T
h
e
h
ig
h
e
r
t
h
e
te
ac
h
e
r
s
’
j
o
b
s
atis
f
ac
tio
n
i
t
is
,
t
h
e
h
ig
h
e
r
t
h
e
o
r
g
a
n
i
za
tio
n
a
l c
o
mmit
me
n
t i
t w
ill b
e
; t
h
e
lo
w
e
r
te
ac
h
e
r
s
’
j
o
b
s
atis
f
ac
tio
n
it
is
,
t
h
e
lo
w
e
r
t
h
e
o
r
g
a
n
iz
atio
n
a
l c
o
mmit
me
n
t it w
ill b
e
.
Te
ac
h
e
r
s
’
w
o
r
k
mo
tiv
atio
n
a
n
d
j
o
b
s
atis
f
ac
tio
n
in
f
lu
e
n
c
e
th
e
o
r
g
a
n
iz
atio
n
a
l c
o
mmi
tme
n
t
as
m
u
ch
a
s
3
8
.
6
%;
w
hi
l
e
61
.
4
%
o
f
t
h
e
r
es
t
o
f
t
h
e p
e
r
c
en
t
a
g
e w
a
s
ca
u
s
ed
b
y
o
t
h
er
fa
c
t
or
s
,
a
p
a
r
t
fr
om
t
h
e
va
r
i
a
bl
e
s
b
e
i
n
g s
t
udi
e
d
.
Te
ac
h
e
r
s
’
w
o
r
k
mo
tiv
atio
n
,
c
o
mp
a
r
e
d
to
te
ac
h
e
r
s
’
j
o
b
s
atis
f
ac
tio
n
,
d
o
mi
n
a
n
t
ly
in
f
lu
e
n
c
e
to
w
ar
d
s
o
r
g
a
n
i
za
tio
n
al
c
o
mm
it
me
n
t.
R
EF
ER
E
NCE
S
[1
]
H
a
s
i
b
u
a
n
,
M
S
P
.,
“
H
u
m
a
n
r
e
s
o
u
r
c
e
m
a
n
a
g
e
m
e
n
t
”
,
J
a
k
a
r
t
a
,
B
um
i
A
ks
a
r
a
,
20
12
.
[2
]
Yu
k
l
,
GA
.
,
“
L
e
a
de
r
s
hi
p
i
n
or
ga
n
i
z
a
t
i
on
5
th
Ed
“
,
P
r
e
n
t
i
c
e
H
a
l
l
,
S
a
d
d
l
e
R
i
v
e
r
,
N
e
w
J
e
r
s
e
y
,
2
0
0
1
.
[3
]
P
r
e
fe
r,
J
.
,
“
C
om
p
e
t
i
t
i
ve
a
d
va
nt
a
ge
t
r
ou
gh
t
p
e
op
l
e
”
,
J
a
k
a
r
t
a
,
B
i
na
r
u
pa
A
ks
a
r
a
,
1996
.
[4
]
C
o
l
q
u
i
tt,
J
A.
,
L
e
P
i
n
e
,
J
A
.
,
W
e
s
s
on,
M
J
.,
“
O
r
g
a
n
i
z
a
t
i
o
n be
ha
v
i
o
r
:
I
m
pr
o
v
i
ng
pe
r
f
o
r
m
a
nc
e
a
nd c
o
m
m
i
t
m
e
nt
i
n t
he
w
o
r
kpl
a
c
e
”
,
N
e
w Y
o
r
k
,
T
h
e
M
c
G
r
a
w
-
H
i
l
l
C
o
m
.
I
nc
.
,
200
9.
[5
]
B
e
c
k
e
r
,
T
E
.
,
M
e
y
e
r
,
J
P.
,
V
a
nde
nbe
r
g
he
,
“
E
m
p
l
oy
e
e
c
o
m
m
i
t
m
e
nt
a
nd
m
o
t
i
v
a
t
i
o
n:
A
c
o
nc
e
pt
ua
l
a
na
l
y
si
s a
n
d
i
n
t
e
gr
a
t
i
ve
m
od
e
l
”
,
J
ou
r
na
l
of
A
p
pl
i
e
d P
s
y
c
hol
ogy
,
vol
/
i
s
s
ue
:
89(
6
)
,
p
p.
9
91
-
1007
,
2004
.
[6
]
M
e
y
e
r
,
J
P.
,
H
e
r
s
c
o
v
i
t
c
h
,
L
.
,
“
C
o
m
m
i
t
m
e
n
t
t
o
o
r
g
a
n
i
z
a
t
i
o
n
c
h
a
n
g
e
:
e
x
t
e
ns
i
o
n
o
f
a
t
he
e
-
c
o
m
po
ne
nt
m
o
de
l
”
,
J
o
ur
n
al
of
A
pp
l
i
e
d
P
s
y
c
ho
l
og
y
,
vol
.
7
3,
p
p.
4
7
4
-
48
7,
20
02.
[7
]
M
ai
e
r
,
G
W.
,
B
r
un
s
t
e
i
n,
J
C
.
,
“
T
h
e
r
ol
e
of
p
e
r
s
on
a
l
w
or
k
goa
l
s
i
n
n
e
w
c
om
e
r
s
,
j
ob
s
a
t
i
s
f
a
c
t
i
on
a
n
d or
ga
n
i
z
a
t
i
on
a
l
c
o
mmi
t
me
n
t”
,
J
ou
r
na
l
of
A
p
pl
i
e
d P
s
y
c
h
ol
o
gy
,
vol
/
i
s
s
u
e
:
86
(
5
)
,
pp.
1
024
-
1042
,
200
1.
[8
]
S
c
ha
ppe
,
S
P
.
,
“
T
he
i
n
f
l
u
e
n
c
e
of
j
ob
s
a
t
i
s
f
a
c
t
i
on
,
or
ga
ni
z
a
t
i
on
a
l
c
o
m
m
i
t
m
e
n
t
a
nd f
a
i
r
n
e
s
s
pe
r
c
e
pt
i
o
ns
o
n
or
ga
n
i
z
a
t
i
on
a
l
c
i
t
i
z
e
ns
h
i
p
b
e
ha
vi
or
”
,
T
he
J
ou
r
na
l
of
P
s
y
c
h
ol
ogy
,
vol
.
1
3
2,
p
p.
2
77
-
290,
1
998
.
[9
]
W
r
i
g
h
t
,
T
A
.
,
B
o
n
e
t
t
,
D
G
.
,
“
T
h
e
m
o
d
e
r
a
t
i
n
g
e
f
f
e
c
t
o
f
e
m
p
l
o
y
e
e
t
e
n
u
r
e
o
n
t
h
e
r
e
l
a
t
i
o
n
b
e
t
w
e
e
n
o
r
g
a
n
i
z
a
t
i
o
n
a
l
c
o
mmi
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m
a
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,
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M
e
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a
A
n
a
l
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s
i
s
”
,
J
o
ur
n
al
of
A
ppl
i
e
d
P
s
y
c
ho
l
og
y
,
vol
/
i
s
s
u
e
:
87
(
6
)
,
pp
.
1
183
-
1190
,
2002
.
[
10]
N
og
ue
r
a
s
,
D
J
.
,
“
O
c
c
u
p
a
t
i
o
n
a
l
c
o
m
m
i
t
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n
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of
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i
on
s
”
,
N
u
r
s
i
ng
E
c
onom
i
c
s
J
our
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vol
/
i
s
s
u
e
:
24
(
2
)
,
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.
86
-
9
3,
200
6.
[
11]
R
e
d
m
a
n
,
T
.
,
S
n
a
p
e
,
E
.
,
“
A
n
e
v
a
l
u
a
t
i
o
n
o
f
a
t
h
r
e
e
-
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om
po
ne
nt
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o
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l
o
f
oc
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upa
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i
o
na
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o
m
m
i
t
m
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t
:
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i
m
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ns
i
o
na
l
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t
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nd c
o
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qu
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nc
e
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m
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d
k
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ng
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n r
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ur
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e
m
a
na
g
e
m
e
nt
s
pe
c
i
a
l
i
s
t
s
”
,
J
our
na
l
o
f
A
pp
l
i
e
d P
s
y
c
ho
l
og
y
,
vol
/
i
s
s
ue
:
88(
1
)
,
p
p.
15
2
-
159
,
2003
.
[
12]
C
he
n,
Z
X.
,
F
r
a
n
c
e
s
c
o
,
A
M
.
,
“
T
h
e
r
e
l
a
t
i
o
n
s
h
i
p
b
e
t
w
e
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o
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t
s
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m
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d
e
m
p
l
o
y
e
e
pe
r
f
o
r
m
a
nc
e
i
n
C
hi
na
”
,
J
our
nal
o
f
V
oc
a
t
i
ona
l
B
e
hav
i
or
,
vol
.
42
,
p
p.
1
1
1
-
121
,
2003
.
Evaluation Warning : The document was created with Spire.PDF for Python.
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13]
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s
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e
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r
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.
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a
nd
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gh
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uc
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s
khy
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L
I
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P
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r
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pe
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up
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m
p
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e
t
e
nt
i
o
n”
,
J
ou
r
na
l
o
f
A
pp
l
i
e
d P
s
y
c
hol
ogy
,
vol
/
i
ssu
e
:
87
(
3
)
,
p
p.
56
5
-
573
,
2001
.
[
14]
R
ho
a
de
s
,
L
.
,
E
i
s
e
n
be
r
ge
r
,
R
.
,
“
P
e
r
c
e
i
ve
d
or
ga
n
i
z
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on
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pp
or
t
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r
e
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e
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a
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u
r
e
”
,
J
ou
r
n
al
of
A
p
pl
i
e
d
P
s
y
c
hol
ogy
,
v
o
l
/
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s
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ue
:
87(
4
)
,
pp.
698
-
71
4,
20
02.
[
15]
S
op
i
a
h
, ”
O
r
g
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n
i
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e
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gy
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ka
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ndi
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08.
[
16]
O
m
a
r
,
S
a
m
e
o
n
,
“
W
o
r
k
v
a
l
u
e
s
,
j
o
b
s
a
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i
s
f
a
c
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i
o
n a
nd o
r
g
a
ni
z
a
t
i
o
na
l
c
om
m
i
t
m
e
nt
“
,
A
ni
m
a I
n
done
s
i
an P
s
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c
h
ol
ogi
c
a
l
J
our
nal
,
vol
/
i
s
s
u
e
:
1
8(
23
)
,
p
p.
2
48
-
254
,
2
003
.
[
17]
S
t
e
er
,
R
M.
,
P
o
r
t
e
r
s
,
L
W
., “
M
ot
i
va
t
i
on
a
l
a
nd
w
or
k b
e
h
a
vi
or
”
,
Ne
w
Yo
r
k
,
M
c
Gr
a
w
-
H
i
l
l
,
1990
.
[
18]
R
i
duw
a
n
, “
M
e
t
ho
ds
a
nd
t
e
c
hn
i
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s
de
v
e
l
o
p a
r
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e
a
r
c
h
p
r
o
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s
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l
”
,
B
a
ndung
,
A
l
f
a
be
t
a
,
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009
.
[
19]
G
r
e
e
nb
e
r
g,
J
.
,
B
a
r
on
,
R
A.
,
“
B
e
ha
v
i
o
r
i
n o
r
g
a
ni
z
a
t
i
o
n:
U
nde
r
s
t
a
ndi
ng
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nd m
a
na
g
i
ng
t
h
e
h
um
a
n
s
i
de
o
f
w
o
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k
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h
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r
e
n
t
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c
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a
l
l
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a
d
d
l
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v
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r
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w
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[
20]
R
o
bbi
ns
,
S
P
,
“
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r
ga
n
i
z
a
t
i
on
a
l
be
h
a
vi
or
,
c
on
c
e
p
t
s
,
c
on
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r
ove
r
s
i
e
s
a
p
p
l
i
c
a
t
i
on
s
”
,
8t
h E
d,
P
r
e
n
t
i
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-
H
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l
l
I
n
t
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n
a
t
i
o
n
a
l
I
n
c
.
,
N
e
w
J
e
r
s
e
y
,
2002
.
[
21]
La
m
,
S
Y
W
.
, T
a
n
g
, C
H
W
.
,
”
M
ot
i
va
t
i
on
of
s
u
r
ve
y
i
n
c
on
s
t
r
u
c
t
i
on
p
r
oj
e
c
t
s
”
,
J
our
n
al
of
G
e
os
pa
t
i
al
E
ng
i
ne
e
r
i
ng
Sur
v
e
y
o
r
s
,
vol
.
5,
p
p.
6
1
-
66
,
2003
.
[
22]
D
e
ci
,
E
L.
,
R
y
a
n
,
R
M
.,
“
Se
l
f
-
d
e
t
e
r
m
i
n
a
t
i
o
n
t
h
e
o
r
y
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n
d
t
h
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f
a
c
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l
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t
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o
n
o
f
i
n
t
r
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n
s
i
c
m
o
t
i
v
a
t
i
o
n
,
s
o
c
i
a
l
d
e
v
e
l
o
p
m
e
n
t
,
a
nd w
e
l
l
-
be
i
n
g”
,
J
o
ur
n
al
P
s
y
c
ho
l
o
gy
A
s
s
oc
i
at
i
o
n
,
vol
/
i
ssu
e
:
55
(
1
)
,
pp.
6
8
-
78,
2
00
0.
[
23]
B
l
a
u
,
G
.
,
“
E
a
r
l
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-
c
a
r
e
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f
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g
t
h
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m
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c
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h
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o
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o
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i
s
t
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,
A
c
ade
m
y
of
M
an
age
m
e
nt
J
o
ur
n
al
,
v
o
l
/
i
s
s
ue
:
42(
6
)
,
pp
.
687
-
69
6,
19
99.
[
24]
G
unl
u
,
E
.
,
M
e
hm
e
d,
A
.
,
P
e
r
c
i
n
,
N
S
.
,
“
J
ob
s
a
t
i
s
f
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c
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i
on
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n
i
z
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t
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l
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om
m
i
t
m
e
n
t
o
f
h
o
t
e
l
m
a
n
a
g
e
r
s
i
n
T
ur
ke
y
”
,
I
n
t
e
r
na
t
i
ona
l
J
ou
r
na
l
of
C
on
t
e
m
por
a
r
y
H
os
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t
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l
i
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y
M
ana
g
e
m
e
n
t
,
vol
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i
s
s
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e
:
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2(
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)
,
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p.
6
93
-
717,
2
010
.
[
25]
T
uhum
e
n
a
,
H
A
B
.
,
“
T
h
e
r
e
l
a
t
i
o
ns
hi
p
be
t
w
e
e
nw
o
r
ki
ng
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ondi
t
i
o
ns
a
nd
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o
b s
a
t
i
s
f
a
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t
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o
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o
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o
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o
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m
p
l
o
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e
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s
”
,
J
ur
n
al
P
s
i
k
ol
o
gi
,
vol
/
i
s
s
ue
:
1
4
(
2
)
,
p
p.
53
-
58,
20
04.
[
26]
Co
o
p
e
r
,
CL
.
,
“
T
h
e
c
h
a
n
gi
n
g ps
yc
h
ol
o
gi
c
a
l
c
on
t
r
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c
t
a
t
w
or
k”
,
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c
c
u
pat
i
ona
l
a
nd E
n
v
i
r
onm
e
nt
al
M
e
di
c
i
ne
,
v
o
l
/
i
s
s
u
e
:
59
(
6
)
,
pp
.
35
5
,
20
0
2.
[
27]
K
r
e
i
t
n
e
r
,
R
.
,
K
i
n
i
c
k
i
,
A
.
,
“
O
r
g
a
n
i
z
a
t
i
o
n
a
l
be
h
a
vi
ou
r
”
,
6
t
h.
e
d
,
M
c
G
r
a
w
H
i
l
l
,
20
04.
[
28]
N
e
l
s
on
,
D
L.
, Q
u
i
c
k
, J
C
., “
O
r
g
a
ni
z
a
t
i
o
na
l
be
ha
v
i
o
r
:
F
o
unda
t
i
o
ns
,
r
e
a
l
i
t
i
e
s
a
nd c
ha
l
l
e
ng
e
s
”
,
O
hi
o,
S
ou
t
h
-
W
e
s
t
e
r
n
,
2006
.
[
29]
S
ch
u
l
t
z,
D
.
,
S
ch
u
l
t
z,
S
E
.
,
“
P
s
y
c
ho
l
o
gy
a
nd w
o
r
k
t
od
a
y
”
,
N
e
w
J
e
r
s
e
y
,
P
e
a
r
s
o
n
E
duc
a
t
i
o
n I
nc
.
,
2
006
.
[
30]
L
ut
ha
ns
,
F
.
,
“
O
r
ga
ni
z
a
t
i
on
a
l
be
ha
v
i
o
ur
”
,
B
os
t
on
,
M
c
G
r
a
w
-
H
i
l
l
,
20
08.
[
31]
M
w
a
nt
u,
E
N
.
,
A
gb
o,
P
O
.
,
N
gw
a
m
a
,
J
C
.
,
“
W
or
k
m
ot
i
va
t
i
on
a
n
d
j
ob
s
a
t
i
s
f
a
c
t
i
on
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s
p
r
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c
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or
s
of
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m
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l
oy
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e
o
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g
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z
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t
i
o
n
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l
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o
m
m
i
t
m
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u
b
l
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c
e
or
ga
n
i
z
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t
i
on
s
”
,
C
ont
i
ne
nt
al
J
.
So
c
i
a
l
Sc
i
e
nc
e
s
,
vol
/
i
ssu
e
:
8
(
1
)
,
p
p.
11
-
21,
20
15
[
32]
B
ur
t
o
n,
J
P
.
,
L
e
e
,
T
W
.
,
H
ol
t
om
,
B
C
.
,
“
T
h
e
i
n
f
l
u
e
n
c
e
o
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m
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v
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t
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l
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o
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d
,
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n
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z
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t
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l
c
om
m
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o
n d
i
f
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y
pe
s
o
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s
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um
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.
181
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200
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[
33]
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.
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Q
.
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:
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.
[
34]
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[
35]
B
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s,
J.
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our
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ar
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,
vol
/
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s
s
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:
22(
5
)
,
p
p.
3
11
-
321
,
2007
.
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