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

R code recipes (#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. I also direct the ACE Lab and am an Associate Director and former founding Co-Director of the CREATE center. My Ph.D. students come from information science and computer science.

I seek to scientifically understand people's experiences with interactive technologies, and to improve those experiences by designing, building, and evaluating new techniques and systems, especially for people with disabilities. My specific research topics include text entry, pointing, touch, and gesture; human performance measurement and modeling; HCI research and design methods; virtual reality; mobile HCI; and accessible computing. I consider myself an interaction designer, computer scientist, and experimental psychologist.

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 three lasting impact awards, one from ASSETS 2019, ICMI 2022, and UIST 2024.

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.