Yin-Juei Chang, Ph.D.
BEHAVIORAL SCIENTIST / UX
I'm Yin-Juei (pronounced "Ing Ray") --- an impact-driven UX Research Lead with 15+ years of experience leading strategic research, aligning cross-functional teams, and leveraging persuasive storytelling to drive user-centered business decisions.
I break the complex down into simple, actionable insights. I help cross-functional teams define and refine their goals to ensure alignment, effective problem-solving, and scalable impact. My experience spans non-profits, tech, and healthcare. My expertise in behavioral science enables me to translate user insights into experience design that drives measurable behavioral change and business impact.
As a scientist and a dancer, I use movement-based interpersonal activities to cultivate understanding and foster collaborative relationships as people navigate conflicts.
Talk to me to see what we could achieve together!
Experiences
UX RESEARCHER
AnswerLab
Led generative and evaluative research for consumer-facing products in transportation, e-commerce, and technology.
SENIOR RESEARCH ASSOCIATE
Hopelab
Developed a theory of change framework for Vivibot, an award-winning health bot for young cancer survivors.
Built a national survey, scaling Goal Mama, a goal-coaching app, from 5 to 275 testing sites, impacting 8k+ users.
Developed an automated mobile survey, achieving a 70+% completion rate from 300 participants across 4 surveys.
USER RESEARCHER
Sharp NEC Display Solutions of America
Led user and market research for a touchscreen display, aligning across Product, Design, Engineering and Sales, uncovering key challenges that empowered the Managing Director to finalize product decisions.
PROJECT LEAD | Ph.D. RESEARCHER
Infant Cognition Laboratory, Northwestern University
Managed a team of 7 (40+ total), leading research on cognitive development with 400+ participants.
Designed, created, and tested the prototypes of 3D experimental stimuli that led to successful data collection.
Co-programmed with a software engineer to build a new coding software (Chang & Wang, 2014) that improved data collection experience by removing user pain points.
LEAD EXPERIENCE RESEARCHER
Best Buy
Led research for a consumer health solution for seniors, driving a business pivot that saved $1M in costs.
Led generative research on a voice solution for senior living, defining the design principles and user needs.
Mentored 3 researchers, elevating research practices and scaling research impact across multiple product teams.
SENIOR MANAGER, USER EXPERIENCE RESEARCH
Teladoc Health
Led a UXR team, developing research roadmaps for customer service and clinical users in cross-functional settings.
Established user insights from the ground up, translating insights into a set of experience principles and user metrics that enabled product experience design, evaluation, and benchmarking for clinical tooling.
Introduced an ecosystem map overviewing all product areas, enabling employee onboarding and collaboration.
Led evaluative research on a voice solution for a patient-facing hospital robot, informing design changes.
Boosted UXR efficiency by 30% by establishing scalable prioritization processes and research templates.