Abstract:
The current study focuses on the use of MALL, Mobile Assisted Language Learning which has been represented by the use of WhatsApp messages to help solve vocabulary acquisition for the undergraduate Sudanese university students. In order to collect data, a pretest and a posttest were involved. In addition to that, a questionnaire has been executed as a supportive data source. A group of 20 students of English BA in the third year at Comboni College of Science and technology were selected as a single experimenting group of the study. The group undergone a pretest and a posttest on phrasal verbs which based on an experimental method to get the needed data for the study. They were sent WhatsApp learning messages and mp3files on phrasal verbs for a period of nine sessions. A questionnaire was distributed randomly among 20 of the population of the same level from which the selected group has been chosen. Regarding statistical measurements, means and t- test for the pretest and the posttest frequencies were used in addition to Chi-square test for the questionnaire. The study confirmed the possibility of using modern mobile phone technologies in learning vocabulary with ease for EFL undergraduate Sudanese university students. The researcher recommends further use of mobile technologies by EFL students for better vocabulary acquisition.
