Credit: Ruth Fremson/The New York Times

Some Project Pages

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Catchy Titles Are Good: But Avoid Being Cute
Research Contributions in HCI
Podcast: How to Write CHI Papers

Statistical Inference in R (#Rstats)
Aligned Rank Transform
R package ARTool
R package multpois
HCI Handbook (4th ed.) R Code
Designing, Running, & Analyzing Experiments

$1, $N, $P, and $Q, gesture recognizers
Impact of $-family recognizers

Pointing Magnifier 3
Angle Mouse

TextTest
TextTest++
FittsStudy
Input Observer

Smart Touch
Slide Rule
Accessible Goal Crossing
EdgeWrite

Welcome!

I am a Professor of Information and, by courtesy, Computer Science & Engineering at the University of Washington (UW). My field is human-computer interaction (HCI) with a focus on mobile and accessible computing. I am a co-founder of the cross-campus DUB Group and the MHCI+D degree, of which I am Chair and Interim Director. I also direct the ACE Lab and am Associate Director and founding Co-Director Emeritus of the CREATE center. My Ph.D. students come from information science and computer science.

I seek to scientifically understand people's performance and experiences with interactive technologies, and to design, build, and evaluate better interaction techniques and systems, especially for people with disabilities. I have done extensive work in text entry, pointing, touch, and gesture; human performance measurement and modeling; HCI research and design methods; virtual reality; mobile computing; accessible computing; and human-centered AI. Methodologically, I combine computer science, design, psychology, and statistics.

In 2010, I received an NSF CAREER award. In 2017, I was awarded the SIGCHI Social Impact Award. In 2019, I was inducted into the CHI Academy. In 2021, I was named an ACM Fellow for "contributions to human-computer interaction and accessible computing." I have received four 10-year lasting impact awards: from ASSETS 2019, ICMI 2022, UIST 2024, and ASSETS 2025.

I received my Ph.D. in 2006 from the Human-Computer Interaction Institute at Carnegie Mellon University, where my advisor was Brad Myers. I received my B.S. in Symbolic Systems in 1998 and my M.S. in Computer Science in 2000 from Stanford University, where my advisor was Terry Winograd.

I have also been an entrepreneur. In 2012, I co-founded AnswerDash—a SaaS company providing A.I.-powered context-sensitive help—where I was a venture-backed CEO for about three years. In 2020, AnswerDash was acquired by CloudEngage. My conversations with The New York Times and The Huffington Post capture some of my experiences as a startup CEO from academia.

See my full bio, curriculum vitae, faculty profile, Wikipedia page, ACM author page, or Google Scholar page.