The Role of Motivation in Incidental Vocabulary Learning through Academic Videos

Recent studies suggest incidental vocabulary learning (IVL) through audio-visual input to be effective for ESL vocabulary development. However, no research has been conducted on IVL gains from academic videos, an accessible, cost- and time-efficient educational tool. Furthermore, as studies suggest that students tend to have high motivation when videos are used during teaching, it is suggested that IVL gains could vary according to student motivation levels. Therefore, this research intends to address the gap of potential IVL gains for ESL learners through academic videos and its possible relationship with motivation. A total of 56 ESL pre-university students in an English-medium university in Malaysia participated in this study. IVL gains were measured through a modified Vocabulary Size Test including a target words test before and after watching the 10-minute academic video. Students’ motivation level was measured using a video motivation questionnaire. The results indicated a significant IVL gain with 0.78 (3.9%) of the target words learned on an average. However, no correlation was found between student motivation level and IVL gains. Therefore, results from this study may give an insight on how TESOL educators can integrate academic videos into innovative, formal and informal teaching practices to develop the vocabulary of ESL students through IVL.