Wicara: Efforts to Reduce the Fear of Public Speaking for Glossophobia Sufferers Using a Mobile Application Prototype Based on Large Language Model

Glossophobia, or fear of public speaking, affects 63.9% of 1,135 college students and 77.42% of 31 high school students. In one study, 50% of 95 university students reported severe anxiety, 42% moderate anxiety, and 9% low anxiety when speaking publicly. This condition stems from low self-confidence, anxiety, trembling, cold sweats, difficulty breathing, increased heart rate, and lack of preparation. The Wicara application prototype integrates artificial intelligence, specifically a large language model (LLM) to evaluate communication skills and enable users to practice public speaking. Developed using the Waterfall method, it offers features such as basic public speaking materials, three practice modes, and progress tracking. The project aims to create an innovative solution for individuals with glossophobia to reduce anxiety and improve speaking skills. Usability testing using a 7-point Likert scale USE Questionnaire yielded positive results: 6.2 for usefulness and ease of use, 6.3 for learnability, and 6.4 for satisfaction. A paired t-test statistical value 0.007 demonstrated the prototype's impact on reducing anxiety levels. These results indicate that the Wicara prototype has significant potential to benefit users in improving public speaking skills and overcoming anxiety.