Moeday-Ku

CHAPTER III

RESEARCH METHODOLOGY

A. The Type of The Research

The researcher tries to find out the effectiveness of teaching vocabulary mastery by using the mapping word technique. The type of this research is experimental. The researcher gives treatment to the fourth grade students of SD N Jurangombo 1 Magelang. There are two groups. Group A is an experimental group and Group B is a control group. For the experimental group is teaching with the mapping word technique and the control geoup is teaching with Flash Card.

The researcher could determine that experimental research is the sign used for explaining data in future situation and to observe the possibility of Causal-effect by giving treatment to compare the result. The method that used in this research is decriptive quantitative method, where it uses a field as n object observation describling a situation in present time. 

A. The Polulation

The researcher takes place in SD Negeri Jurangombo 1 Magelang where all of the fourth grade students are involve. Based on the data of the students, the researcher find there were 10 females and 10 males, so total population is 20 students. Almost the student comes from the local area of Karet Magelang. This school has English lesson that is given to the fourth grade as the first level to learn English lesson.

B. The Sample and Sampling Technique

The sample to be investigated is taken randomly. The number of sample are 20 students. In this case, the researcher divide the class into two groups. The students in class A as an experimental group and the students in class B is control group. The sampling technique that used is the Simple Random Design (SRD)Technique in which every student of the population has same opportunities to be sample of research.

In this research, the procedure for collecting data will be done by using a test. The test in this research will be employed to know the students’ vocabulary mastery before the students get treatment and after get treatment.

C. The Technique of Collecting Data

To get collecting the objective data, the writer will apply the steps as follows: 

1. Test 

The researcher observes variables and collects the data by using test as the main instrument. It consists of:

a. The Pre-test

The first test before the writer applies the method teaching vocabulary by used the Mapping Words technique.

b. The Post-test

The second test after the writer applied the method teaching of vocabulary by used the Mapping words technique, to know how far distinction of developing student’s mastery in vocabulary.

1. Questionnaires

The questionnaires are one of the research instruments. The researcher uses the open questioner. It is only for the English teacher, where the aim to know how far the relationship among methods. The researcer has determined the answer to be marked by the respondents (teachers).the researcher takes some questions as the research instrument as follows.

a. To dig information deeply, about teaching and learning process.

b. The result is easy to be reported.

c. The respondents will return the questioner quickly

D. Experimental Procedure

The procedure of activity of the treatment of both groups is as follow :

a. Opening 

- Greeting 

- The teacher prepares the material. 

b. Main activity 

- The teacher introduces about the material. 

- The teacher asks to the students a question about the material with flash card. 

- The students answer about the question. 

- The teacher gives feedback. 

c. Closing 

- The teacher concludes the material. 

- The teacher closses the meeting. 

3. 

Post-test 

The teacher gives evaluation for the student by giving some question 

3. 

Post-test 

The teacher gives evaluation for the student. 

E. The Method of Data Analysis

The data analysis method used in research is comparative analysis, the researcher comparated the scores of the experimental group and the control group. So the researcher knows wheter or no there is significant difference in the result between the two groups. In order to know the level of ability of the group, they are given pre-test before treatment. In this case the researcher uses t-test simple randomized.

The formula of t-test Simple Random Design (SRD) is as follow:

To = Ma – Mb

Notes : 

Ma : the average score of group A in pre-test/post-test

Mb : the average score of group B in pre-test/post-test

Xa : the standard deviation of Ma

Xb : the standard deviation of Mb

Na : the total sample of group A

Nb : the total sample of group B

To : the coeficient of the means difference

If the result shows that To is less or equal with t-table, the hypothesis stated that the ability level of Experimental Group and Control Group is accepted. The researcher also uses the same procedure to know whether there is significant difference of the two groups after giving the treatment.

The accepted or refusal of those hypothesis is base on the degree of freedom of each test and coefficient is obtained from the calculation of statistics (Na+Nb-2). The degree of freedom of each t-test in this research is the amount of the groups that is (10+10-2)=18.

From the table of significance 5% (Ho) the result of t-test is higher than the figure shown on t-table. However, if the result of t-test is more or equal with the figure on t-table, Ho is refused and Ha is accepted.

F. Statistical Hypoteses

A statistic hypotheses is a hypotheses that is tested through data analysis statistically. The statistical hypotheses in this research are :

1. There is a significant difference of the students’ vocabulary mastery in English learning between those who are taught using The Mapping Word technique and those who are taught using Flash Card.

2. The students whose teacher uses The Mapping Word technique have better in vocabulary mastery than the students whose use Flash Card.