14 8
-14 -9.6
196 92.16
15 6
4 -16
-5.6 256
31.36 16
50 8
28 -1.6
784 2.56
17 8
14 -14
4.4 196
19.36 18
4 12
-18 2.4
324 5.76
19 28
14 6
4.4 36
19.36 20
4 -22
-5.6 484
31.36 21
26 28
4 18.4
16 338.56
22 12
10 -10
0.4 100
0.16 23
12 6
-10 -3.6
100 12.96
24 20
4 -2
-5.6 4
31.36 25
36 28
14 8.4
196 70.56
∑N = 25
∑x1=550 ∑x2=240 ∑X1=0 ∑X2=0 ∑X1²=6232 ∑X2²=13 60
Based on the data presented in the table, it showed that the highest gained is 50 and the lowest gained is 0. Furthermore, after decided the calculation of the
test both Pre-Test and Post-Test, the writer used T-test formula to find out the effectiveness of teaching preposition using CTL.
M1 = M2 =
= =
= 22 = 9.6
t =
=
=
= =
= = 3.49
df = N1 + N2
– 2 = 25 + 25
– 2 = 48
2. The Test Hypothesis
The writer’s hypothesis describe in chapter one is “there is any significant difference between students` mastery of preposition of place taught by CTL
Contextual Teaching Learning and GTM Grammar Translation Method. The statistic hypothesis state that if t
o
t observation is higher that t
t
t table it means that there is significant difference and H
a
is accepted. From the result of statistic calculation, it indicates that the value of the t
o
is 3.49 the degree of freedom df is 48 obtain from N1+N2-2 = 25+25-2 in this
chapter, the writer uses the degrees of significance of 5. In the table of significance are 2.01. Comparing the t
o
with each value of the degree of significance, the result is, 2.01 3.49. Since to score is the table is higher than t
t
score obtained from the result of the calculating, the alternative hypothesis H
a
is accepted and the null hypothesis H
o
is rejected.
As Drs. Ans Sudjiono states that: 1.
“Jika t
o
lebih besar atau sama dengan t
t
maka hypothesis nihil atau ditolak; sebaliknya hypothesis alternative diterima atau disetujui. Berarti
antara dua variabel yang sedang kita selidiki perbedaannya, secara signifikan memang terdapat perbedaan.”
