Macías Loor, Miguel ÁngelDe La Vega Sandoval, Dolores Jackeline2026-03-302026-03-302026-03-30UPSE-MPI-2026-007https://repositorio.upse.edu.ec/handle/46000/16432This study investigated the effects of multimedia integration in the English language laboratory on the development of oral expression in secondary school students in Salcedo, Ecuador. Using a quasiexperimental pretest-posttest design without a control group (n=80). Using a mixed-methods approach, quantitative and qualitative data were collected to evaluate the outcomes of a multimedia intervention focused on improving oral proficiency. Pre- and post-intervention assessments showed significant and statistically relevant (p < .001, Cohen's d = 1.05) improvements in students' fluency, pronunciation, and interactional competence. Multimedia tools, such as video modeling, voice recording software, and interactive dialogues, were instrumental in encouraging spontaneous speech and promoting consistent oral practice. The intervention also produced a notable increase in students' motivation and engagement, who reported greater confidence and enjoyment during oral tasks. Teachers adapted their teaching strategies to incorporate technology, adopting more student-centered communicative methodologies. Despite some initial technical and training difficulties, educators considered multimedia to be a valuable addition to the curriculum. The English language lab provided a structured and supportive environment that facilitated the development of speaking skills, differentiated instruction, and effective progress monitoring. Furthermore, the use of multimedia helped narrow achievement gaps by offering accessible learning opportunities for students with different proficiency levels. The study concludes that multimedia instruction in English language labs represents an effective and adaptable approach for improving speaking skills in foreign language teaching. It highlights the importance of ongoing investment in digital resources and teacher training to ensure sustainable implementation. These findings lay the groundwork for replicating the model in other similar educational settings with the goal of strengthening students' communicative competence.engopenAccessAttribution-NonCommercial-NoDerivs 3.0 United Stateshttp://creativecommons.org/licenses/by-nc-nd/3.0/us/MULTIMEDIA INSTRUCTIONORAL EXPRESSION DEVELOPMENTENGLISH LABLANGUAGE LEARNING MOTIVATIONmasterThesis