Effectivity	Example
Task completion	Conversation ends unanswered Melinda: *Name*, would you say that your studies stress you out in general?
Accuracy	Melinda does not understand the answers and continues to follow her algorithm Melinda: I have a few questions about your studies. Do you have courses in presence?   Person: Counter-question: What do I do this for? Melinda: Then you have certainly had online university anyway. Melinda: How did you feel about online-learning last semester, *name*?   Person: *Name* must work now. Melinda shares non-understanding Melinda: Do you believe that you are being prepared well for the everyday life as a doctor, *name*? Person: Oh, I can't tell that now, but that always depends on the initiative of each person. Melinda: Unfortunately, I did not understand this!
Efficiency	Example
Communication effort	Questions from the Bot are unanswered   Melinda: Do you feel under time pressure?   Melinda: Are you busy right now? Person: Sometimes Short and brief answers of the students Melinda: How are you doing, *name*? Person: well Melinda: That´s nice to hear! Melinda: Do you currently have a lot to do? Person: yes
Satisfaction	Example
Ease-of-use	Irritated response from the students Melinda: But do you have any hobbies? Person: Chess, running and weightlifting. Melinda: What is your hobby? Person: CHESS No talkative attitude towards the Bot Melinda: There is a lot going on right now. Do you want to tell me more about it *name*? Person: There is not much to talk about Melinda: Okay, then tell me. Person: Melinda: Yes, I understand that. I hope that soon you will be less burdened! Melinda: Do you feel energetic? Person: There is nothing to tell. Subliminal criticism of Melinda Melinda: And how are you currently doing with hybrid-teaching formats? Person: I find it very one-sided and miss the interaction with the other students Melinda: Which disadvantages do you see? Person: besides, I would find it much more pleasant to talk to a real person….
Context-dependent questions	Question–answer mechanism incorrect Melinda: Do you sometimes have the feeling that the requirements are too high for you? Person: No, I’m not afraid of covid Person: No, I don’t learn in a learning group Melinda misunderstands answers Melinda: Do you feel alone often? Person: No Melinda: That's too bad: (The pandemic is really hard….)
Learnability	Repeated questioning does not lead to a learning effect Melinda: What´s your name? :) Please just write your name. Person: *name* Melinda: So *name* is your name? Person: That’s how it is. Melinda: Oh, did I get you wrong? Please write your name again now :) Person: *name* Melinda: So *name* is your name? Person: Eric Melinda: Oh, did I get you wrong? Please write your name again now :)