HRI Exam Solved Papers - Questions

HRI – Exam Solved Papers - Questions with Complete Solutions Why is verbal HRI so complicated? - Correct Answers ✅- Verbal HRI is communication and interaction between humans and robots using spoken language

- there are different Aspects of Verbal Interaction: voice, what

is said, how it is said, when it is said (in relationship to what others say and to other behaviors)

• Verbal Human-Robot Interaction (HRI) is complicated

because it's not just about sharing information.It needs to take in account all the different aspects at once.This requires the robot to really understand human language, the situation, and how people normally behave.What is transparency, what should a robot be transparent about, and why is it so difficult? - Correct Answers ✅- Transparency in HRI refers to how clear and understandable a robot's actions and decisions are to the user principles based on human size criteria (voice, what is said, how is said, when is said) What involves Transparency?

• How the robot behaves and why
• how reliable it is and what its limits are
• how much it is aware of the human
• A robot should be transparent about its capabilities,

intentions, and the current state of its systems. 1 / 4

HRI – Exam Solved Papers - Questions with Complete Solutions

• It is challenging because there are often difficulties in

predicting robot actions and sharing information effectively.

• If a robot is too transparent, it may lead to people thinking it

is stupid (as seen in the wheelchair example)

• Another problem lies in the ability level human point of

view: if a robot can do a difficult task, people assume it can

do easier one as well even if usually is not the case.What needs to be taken into account about the timing of robot utterances? - Correct Answers ✅- When a robot talks, it's important for the timing to feel natural in the conversation.

• If there are delays, the participants get confused. It also

might seem rude or annoying.

• On the other hand, if the robot responds too quickly, the

participants are overwhelmed, they don´t know what to do and it might feel strange.

• Also, the robot needs to consider the situation to give the

right information at the right time.

• In certain occasion it is better, when the robot acts and

speaks at the same time. Acting and speaking sequentially may lead to confusion.What is an independent, and what is a dependent variable? -

Correct Answers ✅Independent Variables: 2 / 4

HRI – Exam Solved Papers - Questions with Complete Solutions The variable is manipulated or controlled by the researcher to observe its effect on the dependent variable.

Dependent Variables:

The variable is measured or observed in response to changes in the independent variable In our study the media (paper to read or audio to listen) is independent while time is dependent.What is a subjective measure and what is an objective measure? - Correct Answers ✅Subjective measures are based on personal opinions, impressions, or evaluations, while objective measures rely on measurable facts and observations.For what research questions are questionnaires well suited for? What are their limits? - Correct Answers ✅Questionnaires work well when you want to know what people think and feel about interacting with robots. They're great for finding out opinions, attitudes, and preferences.

Limits:

• Only opinions and not what people really do
• Not very deep

People Saying 3 / 4

HRI – Exam Solved Papers - Questions with Complete Solutions

• Sometimes, people might say things that they think are

good, not what they truly feel.

• Not great for complex situations

What is the difference between within-subject and between- subject design? When would you go for the one, when for the

other? - Correct Answers ✅Within-Subject Design:

• Each person tries all the different things being tested.
• For example, if we're checking how people like different

robot behaviors, each person gets to see and react to each behavior.

• Good when we want to see how each person reacts to

everything.

• Works well when we don't have a lot of people to do the

study.

Between-Subject Design:

• Different groups of people try different things.
• For the robot behavior example, one group might see one

behavior, and another group sees a different one.

• Useful when it's hard for people to try everything.
• Helps when we're worried that trying one thing might affect

how they react to the next thing.

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