THE EFFECT OF USING VISUAL DICTIONARY ON THE SEVENTH GRADE STUDENTS’ VOCABULARY ACHIEVEMENT AT SMPN 1 SUMBERJAMBE IN THE 2010/2011 ACADEMIC YEAR
Abstract
There are four language skills that should be mastered by students who study 
the language namely; listening, speaking, reading, and writing. As it has been stated 
in the 2006 Institutional Based Curriculum (KTSP, 2006:2), the main objective of 
teaching English at Junior High School is  to help students master the four language 
skills, those skills must be given integratedly and supported by the language 
component, such as vocabulary, pronunciation, and structure. In this case, vocabulary 
is one of the language components which cannot be neglected in the teaching learning 
of English. The English teacher should use interesting media in the vocabulary class 
that helps the students get the information  from new vocabularies. Therefore, using 
Visual Dictionary as one of the learning media can help the students avoid 
misunderstanding and understand the new vocabulary. 
This research was an experimental research. The purpose of this research was 
to know whether or not the using Visual  Dictionary has a significant effect on the 
seventh grade students’ vocabulary achievement at SMPN 1 Sumberjambe in the 
2010/2011 academic year. The area of this research was SMP Negeri 1 Sumberjambe. 
It was chosen purposively because the use of Visual Dictionary as media had never 
been applied in teaching learning process in this school. 
The respondents of this research were the seventh grade students of SMPN 1 
Sumberjambe in the 2010/ 2011 academic  year. The research respondents were 
determined by cluster random sampling through a lottery. The total number of the respondents was 80 students that consisted of 40 students of VII A as the 
experimental group taught by using Visual Dictionary, while the control group 
consisted of 40 students of VII C taught by using Question-Answer technique.   
The data of this research were collected from the students’ scores of 
vocabulary achievement test, interview and documentation. The vocabulary 
achievement test was collected from the post test. Then, it was used to make 
comparison between the two groups after the treatment, and the result was analyzed 
by using t-test formula. Based on the computation of the t-test formula on vocabulary 
achievement test, it showed that the statistical value of t-test was 3.65 while the value 
of t-table at significant level 5% with df  (78) was 2.00. It means that the statistical 
value of t-test was higher than that of t-table. Consequently, the null hypothesis (H0): 
“The use of Visual Dictionary has not  a significant effect on the seventh grade 
students’ vocabulary students’ achievement at SMPN 1 Sumberjambe in the 
2010/2011 academic year” was rejected. On the other hand, the alternate hypothesis: 
“The use of Visual Dictionary has a significant effect on the seventh grade students’ vocabulary 
achievement at SMPN 1 Sumberjambe in the 2010/2011 academic year”  was accepted.   It 
indicated that there was a significant effect of using Visual Dictionary on the Seventh 
Grade Students’ Vocabulary Achievement at SMPN 1 Sumberjambe in 2010/2011 
Academic Year.  
    Based on the result of this research, the English teacher  is suggested to apply this 
media especially in teaching English vocabulary. Further, the students of SMPN Negeri 1 
Sumberjambe are suggested to use Visual Dictionary in their study, especially in vocabulary 
learning. They can consult on  Visual Dictionary to finding  the meaning of new vocabulary 
which is completed  with ilustrations and detailed explanation. Moreover, it is suggested that 
the result of this research can be used  by future researchers as a reference or 
information in conducting the same study by using different research design such as a 
classroom action research but on different skill of English.
