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Plain results from published studies. None tested Luwy itself; they test the methods it uses.

• Pressure that rises1,837 people. In 37 studies, people who trained under stress, in steps, felt less anxious and performed better when the pressure was real. Saunders et al. (1996)
• Audience mode40 speakers. A hostile virtual audience made speakers anxious, including speakers who normally felt confident. Pertaub et al. (2002)
• Retry and Prove it61 studies. Across 61 studies, trying to recall beat re-studying (ahead of about 7 in 10), and getting feedback on the attempt nearly doubled the benefit. Rowland (2014)
• Read the roomWorked in every area. In a review, training improved how accurately adults read other people, in every skill area studied. Blanch-Hartigan et al. (2012)
• Register coaching39 studies. Across 39 studies, teaching polite requests and refusals improved learners' ability, computer-based teaching did at least as well as face to face, and the gains lasted. Yousefi & Nassaji (2019)
• Speak clearly86 studies. Across 86 reports, pronunciation teaching had a large effect, and a bigger one when it ran longer and included feedback. Lee et al. (2015)
• Goal-driven characters16 studies. Across 16 studies, talking with a dialogue system improved second-language speaking (ahead of about 7 in 10), and systems with a goal did best. Hou & Min (2026)
• Safe rehearsal27 students finished. University students with high public-speaking anxiety used a self-guided virtual rehearsal and reported less anxiety afterwards and one month later. Premkumar et al. (2021)

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