E. The Technique of Data Collecting
To collect the data, the writer used test which is divided into pre-test and post- test administered to experiment class and controlled class. The pre-test was
conducted before teaching learning process in order to find out the students’ ability in using irregular of nouns form. On the other hand, the post-test was
conducted after teaching learning activities to find out whether there is effectiveness of teaching irregular of nouns form through drilling or not.
In collecting data, the writer has created a test which includes 15 multiple choice items, 5 true and false items, and 5 fill in the blank items.
F. The Technique of Data Analysis
To analyze the data, the writer used t-test. The writer compared score between the experimental class and control class. The technique is useful to prove
statistically which is more effective using Drilling or Grammar Translation Method.
To find out the differences of students’ score in using Drilling compared to the studen
ts’ score that used Grammar Translation Method, the writer used t-test formula as follows:
t
o
=
� −� �
–
t
o
= t
– Observation
M
1
= Mean of Variable X Variable I M
2
= Mean of Variable Y Variable II SEM
1
= Standard Error of mean Variable X SEM
2
= Standard Error of mean Variable X
And after getting mean differences of variables, the writer had to find out the standard of deviation of variable and standard error mean of variable by using
formula as follows:
1. Determining Mean I with formula
Mean Variable I =
Ʃ
2. Determining Variable II with formula Mean Variable II =
Ʃ
3. Determining of Standard Deviation of Variable I
SD
x
=
Ʃ
4. Determining of Standard Deviation of Variable II
SD
y
=
Ʃ
5. Determining Standard of Error Mean of Variable I
SEMx =
� −
6. Determining Standard of Error Mean of Variable II
SEMy =
� −
7. Determining Standard of Error Mean of Variable I
SEMx – My =
� +
� 8. Determining t
o
with formula
t
o
=
� −� �
−
9. Determining t – table in significance level 5 and 1 with df.
df= N2 + NI – 2
G. The Technique of Analyzing Data
Having got the data from pre-test and post-test, they were analyzed and processed by using statistic calculation of T-test formula with
significance degree 5. The formula as follow:
t
o
=
MD �
t
o
: Test Observation
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