about what the students like and dislike values and preference e.i do you like studying recount text using writing diary?, and there were 4 items
about what the students think about new technique of writing diary in writing recount text attitudes and beliefs e.i Is using diary technique helps
you to understand recount text more? .The complete questionnaire can be seen in appendix 4.
3.5 Method of Analyzing Data
After all the data needed in this research have been collected in form of students’ grade in writing recount text and the total number of
students in each group, the writer then anlyze whether there is a significant difference between the ability in writing recount text of eighth grade
students of SMP N II Bae, Kudus in the academic year 20092010 of those who are taught by using and without diary writing.In conducting the test,
the writer gave score to the writing ability of the students. To describe the students’ ability in writing recount text, the writer used calculation; they
are mean and standard deviation.
The formula of calculating the mean
Mean X =
∑
fx N
Notes: X= the mean F=
frequency x= middle score of the interval class
N= the number of sample The formula of calculating the mean with coding:
Mean = M+i ∑fx’
N Notes: M
= interval score which contain mean I =
interval ∑fx’ = the total of frequency multiplied by the coding
N = Number of sample
The formula of calculating the standard deviation Standard Deviation = SD= i
∑fx’
2
∑fx’ N N
Notes: S =
standard deviation i
= the width of interval
f = frequency
x’ =
coding X
12
= score of X
12
N =
the number of sample To find out whether there is a significant difference of ability in
writing recount text of the eighth grade students of SMP N 2 Bae Kudus in the academic year 20092010 of those who are taught by using and without
using diary writing, the writer compares the value of t- observation
t
o
and t-table
t
t in which to is obtained by using this following formula: Arikunto, 2006: 311:312
t
o = Mx-My
∑x
2
+ ∑y
2
1 + 1 Nx+ Ny- 2
Nx Ny
Where Mx =
∑X Nx
My =
∑Y Ny
∑
x
2
=
∑
X2 - ∑x
Nx
∑
y
2
=
∑
y2 - ∑y
Ny Notes: Mx
= the mean score of experimental group
My = the mean score of control group
∑X = the total of difference between pretest and post-test score of the experimental group.
∑Y = the total of difference between pretest and post-test score of the control group.
Nx = the number of the students of experimental group
Ny = the number of students of control group
∑X
2
= the total square of deviation of experimental group ∑y
2
= the total square of deviation of control group
3.6 Assesment Rubric
