Is Likert scale quantitative or qualitative?
quantitative
Is SUS inspective or retrospective?
-> retrospective, because we cannot perform the task at the same time as perform the questionnaire
Is Think Aloud inspective or retrospective?
Insepctive
Sind physiologische Messungen besser als "Secondary Task" Messungen bezüglich Aussagestärke?
- Ja
- Nein
- Kommt drauf an
-> it depends which secondary task you are taking, (no is also correct)
Bietet ESM quantiatives oder qualitatives feedback?
-> beides, kann für beides benutzt werden
Is there a fixed number of participants that you need for any study?
Of course no! completely depends on what you are doing
30 studies with 3 is better than 1 time hundred (jakob nielsen)
Heuristic Evaluation: is Cognitive Walk through?
- Inspective?
- Retrospective?
-> Inspective, you do it (questions, answers) while seeing the interface
Types of Attention: You sit in the library and stay concentrated despite all the chatter around you. What is it?
- Focused Attention
- Selective Attention
- Divided Attention
-> depends a bit on context, exam there will be a picture or explanation
Confusion Matrix: A signal should be detected always correct, and not refused. It is accetable that also noise is accepted. What value schould be (close to) 1
-> Recall, Sensitivity, you always opt for detection and ignore false alarms
-> Recognition faster than recall
Contrast and foveal perception: Is contrast perception outside the foveal area:
- better, same, worse?
-> worse, we have more cones in the foveal area
-> closure is about "do we have a close set", pregnance is about "a few forms going together to make a detectable figure" for simplification
-> does not happen here, closure might be debateable here but generally no
Which colour mixture produces brighter colours in principle?
additive,
subtractive,
both equally
-> additive more bright dann subtractive, because subtractive is reflection
Do constraints in user guidance hinder, promote or have no influence on the learning process for user interaction?
- no influence
- improve learning process
- hinder learning process
-> improve, seen in example of hospital page 35 in slide deck 5, if you are new, you immediately know what to put where
Execution, where you have to percieve things to be able to do something
Should be balanced, of course you can use it for everything! You can do it in all the stages
Not sensory memory (just very short sensory input)
Long Term Memory: Declarative!
-> correct because it is conscious recall what they do and perform
Long-Term Memory: procedural is unconscious (riding bike)
A is correct
What is your mental model of a chatbot?
You can use everything, often used with think aloud cuz it is very easy to setup and gives qualitative feedback (which is good in early stages)
Instrumental and commentary
(narrating, enabling is not in user interfaces)
Last changed5 days ago
