Developing English For Specific Purposes (ESP) Module For Computer Science Students’ Vocabulary Mastery

This development research aimed to develop a learning module for students of Compter Science, to determine the feasibility of the module, and to determine the students’ response towards the module. This study used Research and Developmet (R&D) type of ADDIE model (Analysis, Design, Development, Implementation, and Evaluation). The module was developed based on the results of the research. The results of the feasibility of the module showed the following points: 1) The material expert and the lecturer of the Computer Science Department gave percentage of 69,63% under the range of 66.67% < p  ≤ 80% which means that the developed module gets “B” score and in the “GOOD” category, 2) The media expert and the lecturer of Computer Science Department gave percentage of 75,3% under the range of 66.67% < p  ≤ 80% which means that the developed module gets “B” score and in the “GOOD” category 3) The students of Computer Science Department, through the questionnaire, also gave positive response with the total score of 2034 and percentage of 69,63% which lies in the range of 60<P≤80%, and in the “B” and “positive”category. To get the information about the students’ response towards the module, it was done through interview. The results of the interview showed that the students showed good response towards the module. In sum, it can be concluded that the module for Computer Science Department students is eligible and can be used as media to teach English.


INTRODUCTION
Learning vocabulary is fundamental to support the learners to master English, because the ability of students to read and comprehend the subject material is relatively determined by their vocabulary.When the students have good vocabulary, they can understand paragraphs and texts better.Basically most learners know how important the words in a language is and they also realize that vocabulary learning strategies can be a very helpful device in their vocabulary learning journey.On the other side, for teachers, teaching vocabulary is very important not only for the students in school level but also in university level, one of them is Muhammadiyah University of Metro.

E-ISSN: 2621-6485
Computer Science is one of the majors available in Muhammadiyah University of Metro which aims at preparing the students to face the global world.The students of this department are expected to know things related to the computer science field especially know how to solve computer problems, how to design computer network and to understand computer components.Therefore, on graduating from the department, the students can directly work.One of the ways to prepare the students to be as expected is by giving them English.When the students are qualified, they will be able to apply for a job successfully.
In teaching English to Computer Science department, a lecturer should have appropriate media to make the learning more interesting and thus the students do not feel bored.In addition, the process of learning should be varied too so that the students feel enjoyable and fun during the process.And this is a challenge for the lecturer!One of the ways to make interesting and enjoyable class is by using media as media can be used to motivate the students in the learning process.To use media effectively a lecturer needs creativity because creative media will increase the probability of the students to learn more and better.In sum, a lecturer should create various teaching media to increase interests of the students.
However, during the learning, the researcher found some problems in the students of Computer Science Department, especially when learning English for Specific Purposes (ESP).The problems were: students lack the vocabulary, the students' vocabulary mastery is still low, most of the students have relatively low learning motivation, and the students were difficult to translate the Computer Science terms into English.Furthermore, the students were difficult to learn English (ESP) because the book used only contains the exercises and less material explanation.
Based on the problems identification above, the researcher choose to develop an instructional media that can make students have practice and improve their vocabulary independently.By doing such a study, it's hoped that it can help students to learn English more easily and successfully.

Theoretical Reviews on Terms Related to the Study
According to Handayani (2007) vocabulary is knowledge of word and meaning.Based on the statement, vocabulary is all the words in a language that are familiar and used by someone to comunicate with each other.According to Lewis (in Tanto, 2014) there are four categories of vocabulary i.e.Listening, Speaking, Reading, Writing vocabulary.So, in English there are four skills that should be mastered, and each skill needs vocabulary mastery.
According to Hornby (2009) development is the process of producing or creating something new or more advanced.During the process of development, the important things need to pay attention on are innovation and creativity.According to Sugiono (2009) Research and development is a research method which can be used to produce a certain product, and test the effectiveness of the product.Based on the explanation, it can be concluded that research and development is a research method aims to produce certain products and test the validity and effectiveness of the product in its apllication.
Media is anything used to send messsage(s) from the sender(s) to the receiver(s), so it can arouse the learners' thought, feeling, and interest to gear the students' learn (Sadiman et al, 2002).According to Ruis et al (2009) media is very useful in learning English.Based on the explaination, it can be concluded that learning media is a means or educational tool that can be used as an intermediary in the learning process to enhance the effectiveness of learning process.For a learning process, teaching media of a tool used in order to make communication and interaction between lecturer and students more effective.
According to Nasution (2003), module is a complete unit that stands alone and consists of a series of learning activities arranged to help students achieve a number of objectives formulated specifically and clearly.According to Meyer (in Lasmiyati, 2014) module is relatively short self-contained independent unit of instructional designed to achieve a limited set of specific and well-defined educational objectives.Based on the explanation above it can be concluded that the module is a tool or means of learning in which it can be in the form of materials, methods, and evaluations made systematically and structured as an effort to achieve the objectives of the expected competence.Module is designed specifically and clearly based on the speed of understanding of each student, thus encouraging students to learn according to their ability.
Component of module in Dasna et all. (2006) consists of three parts, namely: introduction, contents, and end.The introductory section consists of cover, introduction, table of contents, guide for readers.The content section consists of the division of subject matter, each of which consists of several components: subtitles, student worksheets, material descriptions, and questions.The final section contains glossary and bibliography.Module development has certain components that must be considered by a lecturer because a module has an important role for both teachers and students.With the module that fits the characteristics of students and learning objectives, the level of students' understanding of the lesson will increase.Module is one of the principles of applying individual learning.With the module, students are free to implement learning according to the speed and opportunity of each.More importantly, students are no longer passively listening to the lectures from the leacturer, but students are expected to actively respond the learning process by listening, reading, evaluating, witnessing demonstrations, and interacting with fellow students and lecturer.
According to Hutchinson and Walters (in Puspitasari, 2013), ESP is an approach in the language teaching where content and methods are based on the students' reason to learn.ESP is a specific learning.
English for Computer Science is a teaching approach in order to achieve the goals or competence of the students to master English in the field of E-ISSN: 2621-6485 computers.Computer Science is one of the majors at Muhammadiyah University of Metro Lampung which aims at preparing the students to face the global world.The students of this department are expected to know things related to the computer science field especially know how to solve computer problems, how to design computer network and to understand computer components.Therefore, on graduating from the department, the students can directly work.One of the ways to prepare the students to be as expected is by giving them English.When the students are qualified, they will be able to apply for a job successfully.

RESEARCH METHOD
This Product brainstorming and doing needs analysis in lessons and identifying the learning content/materils, and objective formulation.

Validation done by media experts, material experts, and lecurers
The subject of this research are, the lecturer of Computer Science Department of Muhammadiyah University of Metro (to provide input on the materials used), material experts, media experts, the lecturers majoring in English education and the second semester students of Computer Science Department of Muhammadiyah University of Metro amounted to 29 students.To get the data, these followings thing were used:

Questionnaire
The questionnaire is a technique of data collection conducted by giving a set of questions or written statement to the respondent to be answered (Sugiyono, 2015).The Questionnaire is a written question or statements that is used to obtain information or matters related to student responses to learning an English for Vocabulary mastery by using Module media as a source of independent learning.Questionnaires used to collect data in this study includes: a. Questionnaire for material expert and a lecturer Computer Science. b.Questionnaires for media experts c.Questionnaires for lecturers of Computer Science Department d.Questionnaire for students.

Interview
Interview is conducted to obtain information about the media used previously.And to know the extent of the students interest in learning English.Interview is also used as guidelines for asking the material to be summarized in the Module media.
The alternative answers using the Likert Scale provided for the media feasibility questionnaire with 5 alternative answers, which are very good, good, fair, less, poor.
The item scoring criteria on the media feasibility questionnaire.The students' response towards the module of English for Computer Science were taken from 35 students who filled the questionnaire containing 20 questions.The answer from these students were categorized into: 1 = disagree, 2 = less agree, 3 = hesitate, 4 = agree, 5 = strongly agree.Agree and strongly agree answers are considered positive.Meanwhile, disagree, less agree, and hesitate answers belong to negative response.The percentage of students' response is calculated using the formula below: %P =   x100% Legend: %P = percentage score F = frequency N = total number of respondents The student's response is said to be positive if the average percentage of student responses is greater than or equal to 60%.

Criteria
The following table shows the frequency distribution of respondents response to the product: type of research includes research and development (R&D) method, research methods used to produce the interest of learning students in learning Computer Science Students of vocabulary mastery.This research is intended to produce an English learning media product, in the form of Module learning Computer Science, The model used in this development research is the ADDIE model which is a learning design a model consist of five stages including analysis, design, development, implementation and evaluation.The Procedure of research used in the researcher and this development use the ADDIE model developed by Dick and Carry (In Mulyatiningsih, 2011), as follows: Source: Mulyatiningsih (2011) module.Preparation of the concept and structure of the module framework.
The average results of the assessment obtained in the form of quantitative data are converted back into qualitative data on the module eligibility category so that it can be concluded about the Module's eligibility based on the ideal conversion guidelines described in the following table.Based on the above formula, we can get guidance of converting quantitative value 1 to 5 into qualitative category to conclude how media feasibility developed.If the p and   values are substituted on the formulas in the table, then the conversion guidelines will be obtained: