6
<ก G @< >?
@ = = 9ก9N
<E@<= = JI
>?
@<F = @K >
G S9ก ก GJ
9 @<
H ก N
= K= ก N
G @<
K N
ก N
G @< =N
= x ?
= JI
>?
@<F = @K >
G N
กK 16.20 |B?
< GK
= JI
J
< N
H ก N
= K= =N
= x ?
= JI
>?
@<F = @K >
G N
กK 13.44 |B?
< GK= JI
; ก < >?
@
; K Kก GI
< :9 K N
=N
= x ?
= JI
>?
@<F = @K >
G <ก G @<E@<ก N
G @< J
<
ก N
ก N
= K= @ N
<
= < :9 ?
GK
p
< .001 (t = -4.80, df = 48)
FG =N
;
KK N
< ?
GK=
>?
@ ?
95% E@<=N
= E@<ก G @K ;h
-3.93 :B
< -1.58 N
= GI
S9ก ก GJ
9 @< K N
ก N
G @< =N
= x ?
S9ก ก GJ
9 @< N
กK 14.63 |B?
< S9ก ก GJ
9 @<@ JN
H GK; ก <
N
H ก N
= K= =N
= x ?
S9ก ก GJ
9 @< N
กK 10.32 |B?
< S9ก ก GJ
9 @<@ JN
H GK
9?
>?
@ ; K Kก GI
< :9 K N
=N
= x ?
S9ก ก GJ
9 @< <ก G @<E@<ก N
G @< J
<ก N
ก N
= K= @ N
<
= < :9 ?
GK
p
< .001 (t = -5.88, df = 47) FG =N
;
KK N
< ?
GK= >?
@ ?
95% E@<=N
= E@<ก G @K ;h
-5.78 :B
< -2.83 G<9 < ?
2
G)
2
=N
x ?
N
K?
< K 9 GKE@<= = JI
>?
@<F = @K >
G S9ก ก GJ
9 @<H DJI
;m
GO
ก
ก N
= K= ก N
G @< G <ก G @<
=
ก N
= K= ก N
G @<
t
Χ
SD GK
n
Χ
SD
GK
n
p
-value
= JI
>?
@<F = @K >
G 13.44 2.65 ; ก < 25 16.20 1.12 J
< 25 -4.80**
< .001
S9ก ก GJ
9 @< 10.32 2.53 9?
25 14.63 2.60 ; ก < 24 -5.88**
< .001
**
p
< .001
>?
@ = D ; K Kก K >
G <ก G @< N
<DJI
;m
GO
ก
ก N
= K= ก N
G @<
K N
ก N
= K=
i
< G 25
ก K >
G G <
6
I
@ 24 R N
G <
19
I
@ 76
N
ก N
G @<
i
< G 25
ก K >
G G <
19
I
@ 76 R N
G <
6
I
@ 24
>?
@ ; K Kก K >
G N
<ก N
= K= ก N
G @<FG H I
:9R= = K N
ก K >
GE@<ก N
G @<
9?
ก N
ก N
= K= @ N
<
= < :9 (
p
< .001) G<9 < ?
3
G)
3
; K Kก K >
G <ก G @< N
<DJI
;m
GO
ก
ก N
= K= ก N
G @< (N = 50)
ก K >
G
ก N
= K= (n = 25) ก N
G @< (n = 25)
χ
2
p
-value
G < 6 (24) 19 (76) 13.52** < .001
R N
G < 19 (76) 6 (24)
**
p
< .001
