Evaluation Team

Creating Opportunities to Improve Lives

Stephanie Marshall, MSW, MBA

President and Owner


As President and Owner of The Evaluation Group, Stephanie leads our dynamic team of evaluation and grant professionals. She has over 15 years of experience in grant development, grant management, and program evaluation with a focus on education and health and human services. She is passionate about helping partners use data for continuous improvement to ensure program impact and long-term success. 


Stephanie earned a Master of Business Administration from Florida State University, Master of Social Work from the University of South Carolina, and Bachelor of Arts in Sociology and Women Studies from Emory University.

Ginny Byrd Porter, LMSW

Vice President


Ginny specializes in building partner relationships and aligning services specific to individual partner needs. Ginny has over 10 years of experience in grants development, grants management, evaluation, and education. Ginny specializes in programs focused on ages birth—20 in the field of STEM, Early Childhood, Innovation, Technology, Health, and Teacher Professional Development.


Ginny graduated from Meredith College with a Bachelor of Science in Child Development and teaching licensures in B-K and K-6 education. She obtained a Master of Social Work from the University of South Carolina and is a Licensed Master Social Worker.

Mike DuBose, MSW


Mike founded TEG in 1985 and is owner of several other successful businesses all of which are driven by the purpose of creating opportunities to improve lives. Mike is passionate about helping other entrepreneurs and small business owners succeed, working with his church, and assisting local charities.


Mike graduated from the University of South Carolina with a Bachelor of Science in Psychology and a Master in Social Work.

Christy Derrick, MPH



Christy has worked in the field of evaluation since 2000 and with TEG for over 10 years. She leads a cross-functional team of evaluators and serves as lead evaluator on a number of evaluation projects. Christy specializes in evaluations focused on magnet schools, teacher and school leader development, STEM, and postsecondary preparation.


Christy holds a BS in Psychology from Appalachian State University and a Master of Public Health from the University of South Carolina with specialization in Health Care Administration.

Melissa Page, PhD



Melissa leads a cross-functional team of evaluators and serves as lead evaluator on a number of evaluation projects. With over 20 years of experience, she specializes in teacher professional development, engaging youth in STEM activities, NSF, and partnerships of teachers and graduate students in K-12 classrooms.


Melissa graduated Summa Cum Laude from Grand Canyon University with a BS in Corporate Fitness and Wellness and Summa Cum Laude from the University of Arizona with a Master of Public Health. She earned a PhD from the University of Arizona in Family Studies and Human Development with an applied program planning and evaluation minor.

Kathy Dowell, PhD



Kathy has over 20 years of experience designing, conducting, and managing partner-focused, participatory evaluations in education and human services. Her evaluation experiences include educational evaluations with a focus on STEM, socio-emotional strategies, youth career development, and college attainment.


Kathy earned a PhD in Policy Sciences with a concentration on Program Evaluation from the University of Maryland, a MA in Clinical Psychology from Loyola College, and a BS in Psychology from University of Maryland.

Olivia Stevenson, MS

Data Architect


Olivia leads our data collection, data management, and data analysis efforts. In collaboration with teams, she works to assure data is collected, secured, and analyzed effectively for all users. She participates in the design of research and evaluation projects by providing expertise on data analysis, data management, and computer software.


Olivia has earned a MS in Applied Statistics and Research Methods from University of Northern Colorado and a BS in Psychology from University of North Florida.

Cathi Snyder, PhD



Cathi has over 20 years of research, evaluation, and grant writing experience, specializing in the fields of education, substance abuse treatment, and mental health interventions. She designs multi-level, multi-method research studies to determine the validity of outcomes based on evidence-based programs and practices.


Cathi earned a PhD in Educational Psychology and Research from the University of South Carolina, an MA in Psychology with an emphasis on statistical analyses and research methodology from the University of Akron and a BS in Psychology from Michigan State University.

Holly Schmidt-Davis


Holly has worked in research and evaluation for over 20 years, with a focus on education and a deep interest in rural populations. Her evaluation experience includes work on STEM, afterschool programming, and school leadership programs. Holly holds an M.Ed. in educational research, measurement, and evaluation from University of North Carolina - Greensboro and a B.A. in child psychology from the University of Minnesota.

Giving Back

TEG was founded with a purpose of Creating Opportunities to Improve Lives. Since then, TEG has positively impacted the lives of many through its monetary donations, hands-on community service activities, and in-kind donations of goods and services. Click here to see some of the great organizations our team members volunteer with throughout the year.