N2 = Number of students of controlled group
e. Determining of standard error mean of variable X SEM
x
=
√
SE
M
x
= Standard error mean of experimental group SD
x
= Standard deviation score of experimental group N1 = Number of students of experimental group
f. Determining of standard error mean of variable Y
SEM
y
=
√
SE
M
y
= Standard error mean of controlled group SD
y
= Standard deviation score of controlled group N2 = Number of students of controlled group
g. Determining standard error of different mean of variable X and mean of variable Y, with formula:
SE
M
x
‒
M
y
=
√
h. Determining T T observation with formula:
T =
i. Determining t
– table t
t
in significant level 5 and 1 with degree of freedom df, with formula:
= d
= Degree of freedom N
1
= The total students in the experimental class N
2
= The total students in the controlled class
4. Statistical Hypotheses
From the result of such analysis, the value of and
can be used to determine the truth or false of the hypotheses. If the value of
is equal to or higher than the value of
, the null hypothesis will be rejected and the
alternative hypothesis will be accepted. Conversely, If the value of
is smaller than the value of
, the null hypothesis will be accepted and the
alternative hypothesis will be rejected. Statistically, the hypotheses of this
study are expressed as follows: ≥
, is rejected and
is accepted ,
is accepted and is rejected
The assumption of the hypotheses: a. If to tt, the null hypotheses Ho is rejected and the alternative
hypotheses is accepted. It means that there is significant difference between the students’ descriptive writing score who were taught by using
dictogloss technique and who were taught without using dictoglos technique at the first
grade students of SMA PGRI 56 μ1 ≠ μ2. In other word, dictogloss technique is effective in teaching writing of descriptive
text. b. If to tt, the null hypotheses Ho is accepted and the alternative
hypotheses Ha is rejected. It means that there is no significant difference between the students’ descriptive writing score who were taught by using
dictogloss technique and who were taught without using dictogloss technique at the first grade students of SMA PGRI 56
μ1 = μ2. In other word, dictogloss technique is not effective in teaching writing of
descriptive text.
