Evaluation AI-tutor in MEITREX with Adaptive Gamification

In oder to evaluate changes to the AI-tutor in MEITREX, a study was conducted. The AI-tutor changes its behaviour according the the users HEXAD player types inside of the MEITREX course, as well as his skill level in the course.The evaluation was designed as a structured session divided into four distinct content parts. Eachpart was targeted at assessing a specific functional area of the AI-tutor.In the coding section, the student was asked to complete a coding exercise inside of the Demo MEITREX course and then askthe AI-tutor for feedback on their code or to ask for help when they had difficulties. The codingexercise was designed to be straightforward, allowing participants to focus on the interaction withthe AI-tutor rather than the complexity of the coding task itself. In the hint section, the student was instructed to first complete the first quiz of the demo course,which covered basic concepts from the provided lecture materials. Afterwards, the student should request hints on the second quiz. At this part of the evaluation, the student should have already received proactive feedback during the coding exercise and quizzes.The final section covers basic questions about the AI-tutor in general. This section starts at question 26.