Our Team

Campbell Bullock, Executive Director

Campbell Bullock, Executive Director

Campbell Bullock holds a Masters Degree in Sociology from San Jose State University. 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, Tuolumne County Schools, etc. Campbell's role at the Co-Op includes administration, project management, data and evaluation training, applied social research work, grant writing, and strategic planning. 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, Stanislaus State University, Solano Community College, and San Joaquin Delta College.

Olga Goltvyanitsa, Senior Research Associate

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 Waldron

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.

Natalie Garcia

Natalie Garcia, Senior Research Associate

Natalie received a Bachelor's Degree in Sociology from California State University, Sacramento. Natalie's role at the organization includes both quantitative and qualitative approaches. Her research and evaluation work spans a full range of topics including criminal justice. Specific project work includes data entry, data cleaning, data analysis, along with report writing and report presentations. She enjoys art, skydiving, and trying different foods.

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.

Missy Lebray, Community Researcher

Missy received a Bachelor's Degree in Sociology from California State University, Stanislaus. Missy’s role at the organization includes both qualitative and quantitative approaches. Specific project work includes data entry, data cleaning, data analysis, along with report writing and report presentations. She enjoys spending time with her children and family.

Bao Vang, Community Researcher

Bao Vang has a Bachelor’s of Arts degree in Liberal Studies from Stanislaus State University and she is bilingual in Hmong. Her work centers of a full range of applied social research and evaluation tasks including data entry, data analysis, report writing, as well as conducting focus groups. Bao’s work also includes providing data and evaluation training to clients.

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.



Arturo Carrasco-Becerra, Research Assistant

Arturo, a Stockton native, received his Bachelor of Science Degree in Urban and Regional Planning from California State Polytechnic University, Pomona. His role in the organization will focus on GIS mapping. While in school, Arturo collaborated on projects with local community organizations that focused on topics such as community development, urban design, research, and GIS analysis/mapping. His experience in GIS includes a range of projects from general land use data updating and mapping to complex trend analysis on transit station service areas. Arturo has an affinity for anything related to maps and enjoys spending time on Google Maps learning about new places around the world.

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.