Module 6

Question 1

Empirical Evaluation

Answer 1

Gathering real data

Question 2

Think-Aloud Usability Study

Answer 2

Observe users using your app and identify usability issues

Question 3

Usability Study Steps

Answer 3

1. Formulate goals of the study
2. Design study protocol, tasks, materials, data collection, etc.
3. Conduct study
4. Analyze data to assess task performance and identify usability issues

Question 4

Data Collection Methods

Answer 4

• Think aloud
• Screencast
• Questionnaires & interview questions to gather participant feedback

Question 5

Questionnaire

Answer 5

Pre-defined questions, focused, less bias

Question 6

Interview

Answer 6

More open-ended, longer responses

Question 7

Critical Incident

Answer 7

Any action that does not lead to progress in performing the desired task.

Question 8

When a critical incident occurs, write down:

Answer 8

• time
• what user was trying to do
• what user did

Question 9

When reporting a critical incident during data analysis, write:

Answer 9

Problem Statement = summary of problem and effect on user (but not the solution)

User Goals = what was the user trying to do (broad goal)?

Immediate Intention = at the moment in time when problem occurred, what was the user trying to do?

Possible Causes = speculate on what might have led the user to take the action they did

Question 10

At the end, group together similar critical incidents to form a ______

Answer 10

Usability Issue

Question 11

Usability Study vs. Contextual Inquiry

Answer 11

Usability Study:
- Used for evaluation
- Generally conducted via observation
- Identification and analysis of critical incidents
- Intended to identify usability issues

Contextual Inquiry:
- Used primarily for needfinding
- Conducted more like a conversation
- Obtain data about users in their context
- Intended to help in the design phase of a project