items was given after the treatment either in experimental class or control class. From these data the writer could analyze and obtain the result of the research.
In this study, the blue print test was made before making the pre-test and post-test of the two classes the experimental class and the control class. Both the
pre-test and post-test consisted of 20 items for each test. The tests based on the indicators that were in line with the basic competence and standard competency
according to KTSP 2006. It could be seen in the table below:
Table 3.1
The Blue Print of Pre-test Experimental and the Control Class
Indicator Test Type
No. of Items Total
Merespon teks berbentuk descriptive dengan cara:
a. Gagasan pokok
b. Gagasan pendukung
c. Informasi faktual
d. Informasi spesifik
e. Maknatersiratkesimpulan
Essay 1,11
2,5,9,12,15,19 3,4,7,13,14,17
6,8,16,18 10,20
20
Table 3.2
The Blue Print of Post-test Experimental and the Control Class
Indicator Test Type
No. of Items Total
Merespon teks berbentuk descriptive dengan cara:
a. Gagasan pokok
b. Gagasan pendukung
c. Informasi faktual
d. Informasi spesifik
e. Maknatersiratkesimpulan
Essay 1,11
2,5,9,12,15,19 3,4,7,13,14,17
6,8,16,18 10,20
20
E. The Technique of Data Analysis
For the techniques of data analysis the writer used statistical calculation of T-test with the formula below.
72
MX : Mean of Difference of Experiment Class
MY : Mean of Difference of Controlled Class
SEMx : Standard Error of Experiment Class
SEMy : Standard Error of Controlled Class
For that purpose there was alternative Hypothesis Ha and null Hypothesis Ho as below:
Ha = “There was an effect of using mind mapping technique toward comprehension of descriptive text of seventh grade
student of SMP Pelita YNH” Ho =
“There was not an effect of using mind mapping technique toward comprehension of descriptive text of seventh grade
student of SMP Pelita YNH”
With note that: If toTt, it means that there is a difference and Ha is accepted; if toTt, it means that there is no difference and means that Ha is
rejected and Ho is accepted.
72
Anas Sudijono, Pengantar Statistik Pendidikan, Jakarta: PT Raja Grafindo Persada, 2006 p.314.
t
o = MX - MY SEMx-y
F. The Procedure of the Research
The procedure of the research consisted of some steps as the following: First, observing the class condition and population of SMP Pelita YNH
Sukabumi in the first grade. And took some supporting data for the research such as paper, pencil tool etc.
Second, taking sampling from the population of the seventh grade students of the school. The samples were class VII-A and VII-B, with 35 students in each
class. The first class was the experimental class and the other was the control class.
Third, the testing of pre-test to the student in two classes. In the experimental class, the students‟ pre-test scores were used as the basic score
before students learnt descriptive texts through mind mapping Fourth, it was the acting. It conducted the teaching learning process in
class by herself. She conducted the same materials which was descriptive texts to the two classes, but treated them with two different methods. The experiment
class was taught by using mind mapping, and the controlled class was taught by using explanatory method as the teacher usually adopted.
Fifth, the testing of post-test to the students in the two classes the experiment class and the controlled class by using the same format of post-test.
Sixth, collecting data from the pre-test and post-test and then calculate it using the data gained for students answer of T test to figure out the result or
conclusion of the research. The last, it was analyzing it, began from observing until getting the result
of research.
