Parrisius, C., Pieronczyk, I., Wendebourg, K., Heiko, H., Rieger, S., Schmidt, T., Meures, D., Trautwein, U., & Nagengast, B. (2023). Examining Effects of Gamification Elements in an Intelligent Tutoring System for 7th Grade English Learners on Their Motivation – A Randomized Controlled Field Trial (Pre-registration). PsychArchives. https://doi.org/10.23668/psycharchives.12847