Journal of Environmental Treatment Techniques  
2021, Volume 9, Issue 1, Pages: 37-43  
J. Environ. Treat. Tech.  
ISSN: 2309-1185  
Journal web link:  
Application of Principal Component Analysis on  
English Proficiency among Technical University  
Siti Zahariah Abdul Wahab *, Yasmin Yahya , Norhatta Mohd , Nurul Sharaz Azmanuddin ,  
Nurhadiana Nurulmatin 2  
1Applied Statistics and Data Science Cluster (ASADS), Universiti Kuala Lumpur Malaysian Institute of Information Technology (UniKL MIIT), 1016 Jalan  
Sultan Ismail, Kuala Lumpur, Malaysia  
Universiti Kuala Lumpur Malaysian Institute of Information Technology (UniKL MIIT), 1016 Jalan Sultan Ismail, Kuala Lumpur, Malaysia  
Received: 29/06/2020  
Accepted: 05/10/2020  
Published: 10/10/2020  
The purpose of this study was to explore the level of English proficiency among students from Universiti Kuala Lumpur, Malaysian  
Institute of Information Technology (UniKL MIIT). This study also observed the relationship between the level of four main skills: Reading,  
Writing, Listening and Speaking by distributing an online questionnaire to 116 students from bachelor programme. The data was then  
analysed using the Principal Component Analysis (PCA) to reduce the dimensionality of the dataset. The research findings revealed that the  
students’ level of Reading, Writing, Listening and Speaking proficiency are intermediate. The findings also showed that there is a significant  
relationship between each Reading, Writing, Listening and Speaking proficiency of the students. On the other hand, the finding also reflects  
that students acquired the lowest in writing skill. Finally, the research draws conclusion and recommendations based on the level of students’  
English Proficiency and the ways to improve students’ achievement in English.  
Keywords: Data analysis, Principal Component, Eigenvector, English proficiency  
communication skill (Nan, 2018). In fact, listening and speaking  
are crucial skills that are correlated in real circumstances. To  
achieve an effective communication, one must listen and  
understand the conversation in order to respond in an  
understandable language (Sadiku, 2015). Apart from that, a  
student needs to master reading and writing skills since these two  
skills are very associated. This is to ensure an effective written  
communication can be achieved.  
Furthermore, English proficiency is the main requirement for  
students to go for a job interview. Most of the companies in  
Malaysia looking for candidates who can converse and voice out  
ideas in English fluently. The goal of this study was to investigate  
the level of English proficiency among University Kuala Lumpur  
English is recognized as the world's intermediate language.  
Million people all over the world speak English as their first  
language. Undeniably, English has become a global language and  
it is very significant in the world trade, international relations,  
technological advances, science, medicine and education. English  
is not only a language, but it is a skill that one must have to grow  
and excel in this challenging world. Today, Malaysia uses English  
as a second language and most of the universities in Malaysia use  
English as the dominant language in the classroom. Moreover, all  
the lecture notes, assignment questions and exam questions are  
also in English.  
Looking at the vast importance of English to the worldwide,  
every student is required to learn this language so that at least they  
can read and write in English. However, acquiring and mastering  
only reading and writing skills are not enough in order to become  
a competitive student. As a great student, he must be able to read,  
write, listen and speak the language well. These four skills,  
reading, listening, writing and speaking should be integrated in  
order to have good English proficiency and develop students’  
UniKL MIIT) students based on the four main English language  
proficiency skills namely reading, writing, listening and speaking.  
Principal Component Analysis (PCA) was employed to evaluate  
the data throughout this study. The following research questions  
were addressed in this study:  
a) Is there any relationship between the four main skills:  
Reading, Writing, Listening and Speaking?  
Corresponding author: Siti Zahariah Abdul Wahab, Applied Statistics and Data Science Cluster (ASADS), Universiti Kuala Lumpur  
Malaysian Institute of Information Technology (UniKL MIIT), 1016 Jalan Sultan Ismail, Kuala Lumpur, Malaysia.