Our Team

Campbell Bullock, Executive Director

Campbell Bullock’s role at the Data Co-Op includes administration, project management, program evaluation, applied social research work, data and evaluation training, grant writing, and strategic planning. He has extensive applied research experience in central California including evaluation work for the San Joaquin County Probation Department, the Stockton Unified School District, the San Joaquin County Office of Education, etc. In addition to his work in California, Campbell was Project Director at Penn State University at Erie for a large-scale outcomes evaluation of a prison-parenting program with the Pennsylvania Department of Corrections. Adding to his evaluation work, Campbell has experience teaching sociology courses at Penn State University, Jamestown Community College, California State University, Stanislaus, Solano Community College, and San Joaquin Delta College.  Campbell holds a doctorate in Educational Leadership from California State University, Stanislaus, and he has a Master’s degree in Sociology from San Jose State University.

Olga Goltvyanitsa, Assistant Director

Olga Goltvyanitsa is the Assistant Director at the Data Co-Op. Olga received a Bachelors of Science in Biochemistry from the University of the Pacific and is a graduate of San Joaquin County’s Court-Community Leadership and Liaison Program. In addition, Olga was selected and graduated from the Public Health Institute’s Women’s Health Leadership program. Her applied work centers on project management, program evaluation, the design and implementation of data and evaluation curriculum etc. In addition, Olga’s expertise includes Access database design and technical assistance, data analysis, GIS mapping, and report writing. Olga is bilingual in Russian.

Stephanie Charbonneau, Senior Research Associate

Stephanie received a Bachelor’s Degree in Criminal Justice with a concentration in Forensic Science, and a Bachelor’s Degree in Psychology from California State University, Stanislaus. Stephanie is in the process of completing her Master’s of Criminal Justice at California State University, Stanislaus and is also enrolled in a Master's program for Counseling Psychology at Santa Clara University. Stephanie’s role at the organization centers on both quantitative and qualitative methodology. Specific project work includes data analysis, report writing, and report presentations. In addition, Stephanie’s research and evaluation work involves key informant interviews, focus groups, and observations and she specializes in criminal justice evaluation.

Ashley Balderama, Community Researcher

Ashley received a Bachelor's Degree in Sociology from California State University, Stanislaus. As the organization's Community Researcher, Ashley works on a full range of projects and she specializes in data entry, data cleaning, data analysis, survey development, and report writing. She enjoys spending time with her family, live music, and traveling.

Miranda Maurino, Community Researcher

Miranda is currently an undergraduate student studying Communication and Pre-Law at the University of the Pacific. Her role in the organization focuses on data collection, data entry, analysis, and project management. Her work includes both qualitative and quantitative approaches to applied social research and evaluation. She enjoys traveling and spending time with her family and friends.

David Childs, Research Assistant

David, a Stockton native, received his Bachelor of Arts Degree in Mathematics from University of the Pacific. His role in the organization focuses on gathering and analyzing data that is useful for activities such as community needs assessment, program planning, program evaluation, etc. While in school, David worked with the San Joaquin County Private Industry Council on labor market information studies and community resource databases. His experience in data analysis includes a range of projects from survey research to needs assessment to program evaluation.



Maeblis Halog, Research Assistant

Maeblis received a Bachelor's degree in International Relations from UC Davis. Her role in the organization focuses on data cleaning, data entry, and data analysis. She loves to spend her free time discovering new books and gardening.

Michelle Yan, Survey Research Intern

Michelle is the Survey Research Intern at the Data Co-Op.  She is currently an undergraduate student pursuing a degree in Communication at the University of the Pacific.  Michelle’s role at the organization centers on conducting research in collaboration with the Association for Criminal Justice Research (California).  Her previous experience with data and research includes working at Pacific’s Department of Student Life, Planning and Assessment. Michelle is also very interested in the theatre arts and has worked as a Head Costumer in the production of Legally Blonde in the fall of 2017, at Pacific. On her off-time, she loves going to Disneyland and gouache painting.