Meet our Instructors

Kathryn Korostoff

Lead Instructor, Research Rockstar Founder

Kathryn Korostoff is president and lead instructor at Research Rockstar, the leading independent provider of market research training and staffing services. With a team of 10 instructors and 100+ vetted US-based consultants, Kathryn works to advance market research and insights excellence so that all market researchers can be research rockstars. She has personally directed more than 600 primary research projects in her 25-year career, and has been a featured speaker at American Marketing Association (AMA), AMAI, ESOMAR, Insights Association (AI), and Quirk’s events. Kathryn is also a professor at Boston University, where she teaches graduate students how to communicate quantitative data.

Dan Reynolds, PhD

Assistant Professor of Education

Dan Reynolds has more than eleven years' teaching experience including high school, undergraduate, and master's classes — and two years with Research Rockstar. His expertise crosses many kinds of statistics, from basic inferential stats to more complex regressions, multilevel models, structural equation models, and item response models. Dan is an Assistant Professor of education at John Carroll University. He received his PhD in Education from Vanderbilt University in 2017, specializing in quantitative methodologies for social science research with a focus on high school literacy instruction. He also holds an Master's in Education and a Bachelor's in English from the University of Notre Dame.

Julie Worwa

Lead Instructor, Principal, JMW Research

Julie Worwa is the sole proprietor at JMW Research, an independent market research consultancy. Julie successfully designs and executes goal-oriented market research programs designed to meet clients’ business objectives. She builds strong relationships with clients, communicating depth of expertise and results in clear, concise, and actionable reports and demonstrations. Julie has personally completed 500+ primary research projects, with deep expertise in consumer behavior, customer satisfaction, market segmentation, needs discovery, and product concept testing.

Chris Grabarkiewicz-Davis, PhD

Partner, Olivetree Insights

Chris is a partner at Olivetree Insights; a business consultancy whose Smart Insights Brief software, workshops, and consulting services are giving insights teams the tools to become a competitive advantage. Chris’ experience is diverse including leading teams responsible for web, customer, & CRM analytics; market mix modeling and traditional consumer insights. Prior to joining Olivetree Insights, she held leadership positions at Ipsos Connect, Luxottica Retail (Director Consumer Insights & Marketing Analytics), MetrixLab, and Nationwide Financial. She is a Past-President of the Cincinnati Chapter of the American Marketing Association and has a PhD in Political Science from The Ohio State University.

Michelle Legros

Independent Research Consultant

With deep insights leadership experience at companies including UnitedHealth Group, U.S. Bank, GfK, and The Toro Company, Michelle is an insights leader who brings strategic and practical insights solutions to help organizations answer key business questions. Michelle has spent more than 25 years on both the client and supplier sides of insights & marketing research. She has built and led insights functions for Fortune 100 companies. In addition, she has mentored countless marketing research, marketing and product development professionals across many industries in the art of insights & research. Michelle has executed hundreds of quantitative and qualitative projects across many methodologies. Some of her favorite experiences include launching customer experience/NPS programs, groundbreaking segmentation initiatives and conducting qualitative projects. When she’s not studying people, Michelle is traveling the globe with her family. They have made it to five continents together—and counting!

John Barrett, PhD

Assistant Professor of Political Science

Dr. John Barrett has over 12 years' of experience designing, fielding, and analyzing surveys on behalf of Fortune 500 companies including ADT, AT&T, Bell Canada, Best Buy, Carrier, Cisco, Comcast, Intel, NVIDIA, Paramount Pictures, and Samsung. He has completed projects on a wide range of topics including digital media, consumer electronics, home entertainment, mobile phones, Internet service, healthcare, and energy use. He is currently on the faculty of LeToureanu University and teaches a course on research methods.

Greg Timpany

Market Research Consultant

Greg’s career arc has delved into the world of marketing, analytics and strategy for over 20 years. His expertise bridges the space between the structured world of IT and the creative, customer-centric needs of marketing, sales, product development, and customer service. He is a contributing author to several market research blogs, and has served as an instructor for Research Rockstar and Meredith College. He is a co-founder Off2Market Ltd. and Anova Market Research. His past market research, competitive intelligence, and strategy engagements include Global Knowledge, The Los Angeles Times, Guitar Center, Wilkin Guge Marketing, and Omnitrans. Greg holds undergraduate and graduate degrees from California State University, San Bernardino. He is a distinguished member of Alpha Kappa Psi, Professional Business Fraternity. He can be followed on Twitter @DataDudeGreg.