The Use of Video Based Learning to Improve Students Vocabulary in Grade Eleventh of SMA YPK Pematang Siantar

Abstract

This research investigates the effectiveness of Video Based Learning in enhancing vocabulary acquisition among eleventh-grade students at SMA YPK Pematang Siantar. The study employs a true experimental design with a quantitative approach, involving pre-test and post-test assessments to measure vocabulary improvement. Thirty-two students from class XI IPS 1 were selected as the sample. The data were collected through multiple-choice vocabulary tests and analyzed using SPSS 26.0. Findings reveal a significant increase in students' vocabulary scores after the implementation of video-based instruction, with the mean score rising from 70.47 (pre-test) to 87.34 (post-test). Statistical analysis confirms the effectiveness of the treatment, with a t-count of 7.678 exceeding the critical value. The results support the use of multimedia, particularly videos, as a powerful tool to enhance vocabulary learning through contextual, auditory, and visual reinforcement. This method not only improved students’ vocabulary mastery but also increased their engagement and confidence in language use.