<![CDATA[Working memory is a cognitive function that plays an important role in temporarily storing and manipulating information to support learning and information processing. Differences in information delivery media, such as audio and visual media, may engage different components of working memory and potentially lead to different cognitive outcomes. This study aimed to examine the effect of receiving information through audio and visual media on the working memory of high school students. This study employed a quantitative experimental method using a post-test control group design. The participants were 27 tenth-grade students from Perguruan Darul Ma’ruf Jakarta, consisting of 14 students in the audio group and 13 students in the visual group. Data were collected using a post-test consisting of five essay questions administered after the treatment. Data analysis was conducted using the Shapiro–Wilk normality test, Independent Sample t-test, and Cohen’s d effect size analysis with Jamovi software. The results of the normality test indicated that the data were normally distributed (p = 0.494). The Independent Sample t-test showed no significant difference between the audio and visual groups (t = 1.17, p = 0.253), indicating that the alternative hypothesis was rejected and the null hypothesis was accepted. However, the effect size analysis revealed a Cohen’s d value of 0.451, indicating a small-to-moderate effect, with the audio group obtaining a higher mean score than the visual group. These findings suggest that audio and visual media do not significantly differ in their influence on the working memory of high school students.]]>
