Cognitive Theory of Multimedia Learning Powered Code-Switching Interface for Vocabulary Acquisition of ESL Students

The purpose of the paper is to use multimedia as a method to improve proficiency in vocabulary of undergraduate students from the level B1 to B2 (CEFR). The term "code-switching" is used to describe the use of multiple languages during a single discourse. Human minds can take in so much data before they get overwhelmed. The quality of that limited space can be improved by incorporating visual attention alongside verbal attention in order to create mental representations that are utilised to digest incoming information. “People learn more deeply from words and pictures than from words alone” (Mayer, 21). This research builds on previous work in this area by making use of multimedia materials that feature both the learners’ native language and English subtitles. This creates mental space for the students, which in turn guides them to a vocabulary-learning interface. CTML was employed to conduct a quantitative study between the age groups 17 and 20. Using a random sampling technique, researchers collected data from a total of 40 individuals. ANOVA (Analysis of Variance), independent t-tests, and paired t-tests were used to examine the use of Code-Switching in the experimental group and its statistical significance relative of the control group. The findings of the study suggest that utilising CTML can help non-native speakers of English improve their language through code-switching. There was a significant advancement in the vocabulary usage of the experimental samples of those who participated in the study.