Abstract
Bi'ah lughawiyyah plays an important role in the process of teaching and learning to enhance Arabic language proficiency among students. Mastery of Arabic among Malaysian students is still low and unsatisfactory. Hence, the need to examine the determinants of Arabic language proficiency among students is very important because the mastery of Arabic is an important indicator of the success of the students. The purpose of this study was to investigate the influence of lughawiyyah on the student achievement and the role of the student as a mediator in the relationship between lyaawiyyah and student achievement. This study uses quantitative research methods in the form of cross sectional. The data were collected by distributing set of questionnaire adapted and modified from some previous studies. A total of 494 students in eight Malaysian public universities who offer Arabic undergraduate courses are involved in this study. The data analysis method used in this study consisted of two forms, namely statistical descriptive analysis and inferential statistics. This study also carried out factor analysis, namely factor exploration analysis (EFA) and factor validation analysis (CFA). The data were analyzed using SPSS-22 and Structural Equation Modeling - Partial Least Square (Smart - PLS 3). Based on the results of the data analysis, this study finds that bi'ah lughawiyyah (psychosocial and physical components) positively and significantly influences students 'achievement and students' attitude as mediators in the relationship between the lughawiyyah (psychosocial component) and student achievement.