samples. The first class, 8B was chosen as control group and the class 8C as experimental group.
3.5 Variables
Brown 1988: 7 states that “a variable is something that may vary or differ. There are depe
ndent, independent, moderator, control and intervening variable.” This study considers two types of variables; they are dependent and independent variable.
Furthermore, to Brown 1988: 10 stated “a dependent variable is the variable of
focus or the central variable on which other variables will act if there is any relationship. The independent variable is the variable selected by the researcher to
determine the relationship with the dependent variable.”
In this study, the variables are: 1.
Independent Variable: The use of “pop up card” as the media to improve students achievement in writing descriptive text.
2. Dependent Variable: The students‟ achievement in writing of descriptive text.
The samples of this study were the eighth grade students of MTs N 1 Semarang in the academic year of 20132014.
3.6 Instrument of Collecting Data
There was some instrument that used in this research. 1.
Test
Test is some questions that are used to measure the knowledge, intelligence, skill or ability from individual or group Arikunto, 2002 P:150. The test was used to
measure the students‟ ability about descriptive text.
In this research the researcher used two types of test. They were pre test and post test. Pre test and post test are intended to investigate the initial condition, the
development during of the treatment process, and the final of the research. a.
Pre test A pre test is conducted in the beginning of the lesson before the treatments are
given. The purpose of the pre test is to investigate the students‟ achievement in writing descriptive text.
b. Post test
A post test is conducted after the treatments were given. The purpose of the post test is to investigate the students‟ achievement in writing descriptive text
after they have been taught using pop up card.
2. Questionnaire
Questionnaire was administered after conducting all the step of research in order to strengthen the result of observation. Though questionnaire, information related to
the effectiveness of pop up card in improving students‟ achievement in writing descriptive text.
Questionnaire was given to gather information from the students of experimental group based on their needs, interest, like and dislike about the students‟ opinion on
the writing class using approach. 3.
Interview Interview is one technique used by researchers to assess the state of a person, for
example to find data of the background variables of students, education, attention, attitude towards something. It was used to make sure what is needed to achieve the
purpose of this study. Interview is used by the researcher to know comments of the English teacher
about the improvement before and after the treatment. In collecting the data, the researcher gave pre test to both of the class. After that,
both of them were given some treatments, the experimental group would be given “pop up card” as the media to improve students‟ achievement in writing text while
the control group was not given any media. They were taught using a conventional method. After the treatments ended, they were given post test and questioner. The
result of this test used to find out th e achievement of the students‟ achievement in
writing descriptive text. The results of both tests would be the statistical data of this study.
3.7 Procedure of Collecting Data
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