LU #10 – Evaluating Techniques III: Experiments & Usability Metrics

10-01 | Usability Testing and Experiments

  • Recap: Controlled Settings & Usability Testing vs. Experiments
  • Internal + external validity, reliability
  • Experimental Research

10-02 | Usability Testing & Metrics

  • Possible usability metrics: Performance-based metrics, issue-based metrics, self-reported metrics, and behavioral and physiological metrics
  • Measuring Usability:
    • Effectiveness: Completion Rate
    • Efficiency: Time-based efficiency, overall relative efficiency
    • Satisfaction: Task and test level satisfaction

10-03 | Conducting Experiments

  1. Formulating Your Hypothesis
  2. Evaluating Your Hypothesis
  3. Defining Needed Variables
  4. Specifying Your Research Design
  5. Conducting Your Statistical Analysis

10-04 | Example: Facebook and “Emotional Contagion”

Additional Material

Check out the box.fu folder for additional material.

NASA-TLX in HTML and JavaScript – https://www.keithv.com/software/nasatlx/