Chapter 23 Deciding how to collect data

Introduction: Preparing to Collect Evaluation Data Timing and Logging Actions Automatic Logging of Keystrokes and Mouse Clicks Specialist Logging Software for Usability Evaluations Choosing a Logging Product UIDE Chapter 23

Think-Aloud and Offering Help Using Cognitive Walkthrough Questions “Is there anything there that tells you what to do next?” “Is there a choice on the screen that lines up with what you want to do? If so, which one?” “Now that you’ve tried ti, has it done what you wanted it to do?” UIDE Chapter 23

Taking Notes When Observing Users UIDE Chapter 23

Conducting Post-Session Discussions Retrospective protocol Post-session interview / debrief UIDE Chapter 23

Questionnaires Advantages Disadvantages Can’t forget to ask a question All participants see the same questions Ability to collect quantitative data Disadvantages Difficult to design Must predict topics the users will need Closed questions don’t give reasons why the users answered the way that they have. UIDE Chapter 23

Using Technologies to Help with Recording Video and Audio Recording Eye-Tracking Equipment Practitioner’s Choice of Technology What to Do If a Participant Does Not Agree to Be Recorded The Global Warming Choices for Data Collection UIDE Chapter 23