Sometimes more is better: Agent gestures, procedural knowledge and the foreign language learner. - Robert Otto Davis; Joseph Vincent (Br. J. Educ. Technol., 2019)

Reconsidering the Voice Prinicple with Non-native Language Speakers. - Robert Otto Davis; Joseph Vincent; Taejung Park (Comput. Educ., 2019)

What affects learner engagement in flipped learning and what predicts its outcomes? - Jihyun Lee; Taejung Park; Robert Otto Davis (Br. J. Educ. Technol., 2022)

Exploring gesture frequencies and images in multimedia environments with pedagogical agents. - Robert Otto Davis; Yong-Jik Lee; Joseph Vincent; Lili Wan (J. Comput. Assist. Learn., 2024)