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Phil Kortum

Phil Kortum

Professor of Psychology and Associate Department Chair at Rice University; human factors researcher and expert on usability measurement (System Usability Scale).

Sep 28, 2026

The Design Psychologist | Psychology for UX, Product, Service, Instructional, Interior, and Game Designers

The Design Psychologist | Psychology for UX, Product, Service, Instructional, Interior, and Game Designers

Well-Tested, Easy to Use: How to Measure Any Product's Usability (w/ Philip Kortum)

Sep 28 · 1h 6m

Thomas Watkins
Thomas WatkinsHOST
9:33
And now we'll get back to our episode.
Phil Kortum
Phil KortumGUEST
9:39
Sure.
Phil Kortum
Phil KortumGUEST
9:40
So there were lots of efforts to come up with different kinds of instruments that would measure usability.
Phil Kortum
Phil KortumGUEST
9:48
And so Jim Lewis was doing tons of this work at IBM.
Phil Kortum
Phil KortumGUEST
9:53
He developed the after scenario questionnaire and the post-system usability questionnaire.
Phil Kortum
Phil KortumGUEST
9:59
He had done a lot of work in this.
Phil Kortum
Phil KortumGUEST
10:01
There were also a number of proprietary tools.

38 MINS LATER

Thomas Watkins
Thomas WatkinsHOST
47:49
What are some of the outcomes or insights from that type of research and lessons learned?

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