B. Variable of The Research
Ac cording to Hatch “ Variable can be defined as an atribute of a person or an object
which “Varies” from person or from object to object”.
52
And also statetd that “ The independent variable is the major variable which is selected, manipulated and
measured by the research. The dependent variable, on the other hand, is the variable which you observe and measure to determine the effect
of the independent variable”
53
In this research, there are two variables investigated, they are as follows: 1.
The independent variable uses Think Aloud Strategy X 2.
Dependent variable is students‟ reading comprehension on recount text Y
C. The Operational Definition of Variables
The Operational Definition of Variables are as follow : 1.
Think Aloud strategy is a strategy that helps students to understand the reading, especially on recount text. It means that in this reasearch, the
researcher used Think Aloud as strategy in teaching reading comprehension on recount text.
2. The students, Reading comprehension on recount is the students knowledge
about how to comprehend the recount text. It means that they are able to understand about what they read.
52
Hatch Evelyn and Hossein Farhady,
Research Design Statistic
Los Angeles: New Burry House Publisher,1982, p.12.
53
Ibid
, P. 15.
D. Population, Sampling Technique And Sample
1. Population
According to Creswell a population is a group of individuals who have the same characteristic.
54
Population of The research was the entire students at the Eight grade of MTs Darul Huda Bandar Lampung. There were 105 students.
The Eight Grade consisted of three classes. 2.
Sampling Technique According to Creswell cluster random sampling is the researcher chooses a
sample in two or more stages because either the researchers cannot easily identify the population or the population is extremely large.
55
The researcher used two classes, there are procedure to take the sample:
a. First, the researcher made four small pieces of rolled paper which each piece
was named of each class. All the name classes put into a bottle b.
Second, the researcher shaked a bottle and take one small piece of rolled paper. It was become sample for treatment. The first rolled paper come out
and the experimental class and the second one as rolled paper the control class. The first rolled paper got class VIII C for experimental class. The
second one as rolled paper was class VIII A for control class.
54
Ibid
, p.142.
55
Ibid
, p.145.
3. Sample
According to Creswell sample is a subgroup of the target population that the researcher plans to study for generalizing about the target population.
56
The eight grade consisted of three classes which two of them as the sample. The
first rolled paper was class VIII C for experimental class. The second one as rolled paper was class VIII A for control class.
E. Data Collecting Technique
In collecting data, the researcher used tests, pretest and posttest. There are as follows: 1.
Pretest Pretest is to know the result of the students before treatment in the class. The
researcher got pretest result in form multiple choice for control and experimental class.
2. Posttest
It is final test of the learning. The researcher gave the students same test. That is multiple choice. In test allotment of the test is for control and experimental
class. Especially experimental class, it is used to know the result after treatment. So, the researcher can know the influence by after treatment and
before treatment.
56
Ibid
, p.142
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