Skip to Main Content

RTI uses cookies to offer you the best experience online. By and clicking “accept” on this website, you opt in and you agree to the use of cookies. If you would like to know more about how RTI uses cookies and how to manage them please view our Privacy Policy here. You can “opt out” or change your mind by visiting: http://optout.aboutads.info/. Click “accept” to agree.

Accept
RTI International
  • About
    • Office Locations
    • Executive Leadership
    • Corporate Governance
    • Partner with Us
      • U.S. Government
      • Clients and Funding Agencies
      • Industry and Commercial Clients
      • Foundations and Associations
      • Bilateral Agencies and Multilateral Banks
      • Universities and Academic Research Institutions
      • Suppliers and Small Businesses
    • Commitment to Quality
      • RTI's Client Listening Program
    • Ethics and Human Research Protection
    • Living Our Mission
    • Veteran Opportunities at RTI

    About

  • Practice Areas
    • Health
      • Public Health and Well-Being
      • Health Care Transformation
      • Behavioral Health
      • Health Behavior Change
      • Precision Medicine
      • RTI Health Solutions (RTI-HS)
      • RTI Center for Community Health Evaluation and Economics Research
      • Health Equity
    • Transformative Research Unit for Equity​
      • Equity Capacity Building Hub
      • Social and Economic Justice Research Collaborative
      • Narrative Research and Community Engagement Lab
    • Education and Workforce Development
      • Early Childhood
      • K-12 Education
      • Postsecondary Education
      • Career and Adult Education and Workforce Development
      • Education Policy, Systems, and Governance
      • Education Research Methodologies
      • Education Technologies
    • International Development
      • Energy for Development
      • Environment
      • Global Food Security, Agriculture, and Nutrition
      • Global Health
      • Governance
      • International Education
      • Monitoring, Evaluation, Research, Learning, and Adapting (MERLA)
      • Youth and Economic Opportunity
      • Building Resilience Against COVID-19 in Developing Countries
      • Water
    • Climate Change
      • Clean Energy Technology and Renewables
      • Climate Finance
      • Climate Justice and Equity
      • Climate Planning, Preparedness and Resilience
      • Climate Policy
      • Climate Vulnerability, Adaptation, and Mitigation
      • Economic Impacts of Climate Change
    • Water
      • Food-Energy-Water Nexus
      • Water Quality
      • Water Sector Governance
      • Urban Sanitation
      • Water Service Provider Strengthening
      • Water Resources Management
    • Energy Research
      • Carbon Capture and Utilization
      • Biomass Conversion
      • Natural Gas
      • Energy Efficiency
      • Industrial Water
      • Syngas Processing
    • Environmental Sciences
      • Air Quality
      • RTI Center for Water Resources
      • Urban Sustainability
      • Toxics
      • Building Resiliency in the FEW Nexus
      • Climate Change Sciences and Analysis
      • Environmental Policy
      • Environmental Justice
      • Sustainable Materials & Waste Management Solutions
    • Justice Research and Policy
      • RTI Center for Community Safety and Crime Prevention
      • RTI Center for Policing Research and Investigative Science
      • Child Well-Being and Family Strengthening
      • RTI Center for Forensic Sciences
    • Food Security and Agriculture
      • Market Systems Strengthening
      • Food Safety
      • Food and Nutrition
      • Global Food Security, Agriculture, and Nutrition
      • Climate-Smart Agriculture
      • Agricultural Innovation
      • Obesity Prevention
    • Innovation Ecosystems
      • Innovation Advising
      • Innovation for Economic Growth
      • Innovation for Emerging and Developing Economies
      • Innovation for Organizations
      • Research, Technology, and Innovation Policy
      • Technology Acceleration
    • Military Support
      • Military Behavioral Health
      • Military Health and Human Performance
      • Military Sexual Assault, Harassment, and Domestic Violence Prevention
      • Wearable Sensor Technologies
      • Military Health System Transformation

    Practice Areas

  • Services + Capabilities
    • Surveys and Data Collection
      • Survey Design
      • Instrument Development
      • Survey Methodologies
      • Data Collection
      • Establishment Surveys
      • Health Registries
      • Data Analysis and Reporting
      • Research Operations Center
    • Statistics and Data Science
      • Survey Statistics
      • Environmental Statistics
      • Coordinating Centers for Multisite Studies
      • Analysis and Design of Complex Data
      • Biostatistics
      • RTI Center for Data Science
    • Evaluation, Assessment and Analysis
      • Evaluation Design and Execution
      • Advanced Qualitative, Quantitative, and Mixed Methods
      • Evaluation, Monitoring, and Assessment
      • Economic Analysis
      • Evaluating Communication Interventions and Campaigns
      • Evidence Synthesis for Policy and Practice
      • Risk Assessment and Prediction
    • Program Design and Implementation
      • Systems Strengthening and Scaling
      • Capacity Assessment and Building
      • Policy Reform Support
      • Curriculum and Teacher Professional Development
      • Interventions and Prevention Programs
      • Implementation Science
    • Digital Solutions for Social Impact
      • Human-Centered Design of Digital Solutions
      • Digital Product Development
      • Digital Communication Campaigns
      • Digital Data Analytics
    • Research Technologies
      • Survey Technologies
      • Data Management and Decision Support Systems
      • Geospatial Science, Technology, and Visualization
      • ICT for Limited-Resource Settings
      • Mobile Applications
      • Web Applications
      • Bioinformatics
      • Interactive Computing
    • Drug Discovery and Development
      • Medicinal Chemistry
      • Molecular Design and Cheminformatics
      • Behavioral Pharmacology
      • Drug Metabolism and Pharmacokinetics (DMPK)
      • In Vitro Pharmacology, Bioassay Development, and High-Throughput Screening (HTS)
      • Isotope Labeling
      • Regulatory Consulting and Support for Medical Products
    • Analytical Laboratory Sciences
      • Bioanalytical and Toxicology Research
      • Forensic Sciences
      • Physicochemical Characterizations
      • Metabolomics
      • Proficiency Testing and Reference Materials
      • Microbiology
      • Analytical Chemistry and Pharmaceutics
    • Engineering & Technology R&D
      • Biomedical Technologies
      • Decarbonization Sciences
      • Environmental Exposure & Protection
      • Materials & Environment
      • Sustainable Energy Solutions

    Services + Capabilities

  • Centers
    • RTI Center for Advanced Methods Development
    • RTI Center for Communication Science
      • Communication Research
      • Communication Design
      • Communication Delivery
    • RTI Center for Data Science
    • RTI Center for Education Services
      • Teaching and Learning
      • Education Leadership
      • Peer Learning Networks
      • Strategic Consulting
    • RTI Center for Forensic Sciences
    • RTI Center for Global Noncommunicable Diseases
      • Program Financing & Economics for NCDs
      • Health Systems Strengthening for NCDs
      • Communication Science and Behavior Change for NCDs
      • Implementation Science for NCDs
    • RTI GenOmics, Bioinformatics, and Translational Research Center
      • Disability Studies
      • Ethics
      • Newborn Screening
    • RTI Center for Water Resources
      • Water Resources Sectors
      • Water Resources Services
      • Water Resources Tools
    • RTI Global Gender Center
    • North Carolina Center for Optimizing Military Performance
    • NCCU-RTI Center for Applied Research in Environmental Sciences
    • RTI Center for Climate Solutions

    Centers

  • Impact
    • Newsroom
    • Insights Blog
    • Events
    • Publications
    • RTI Press
      • About the RTI Press
      • Instructions for Authors
      • RTI Press Collections
    • Projects
    • Global Reach
      • Asia
      • Eastern Europe and Central Asia
      • RTI International India
      • Africa
      • Middle East and North Africa (MENA)
      • Latin America and the Caribbean (LAC)

    Impact

  • Experts
    • Our Experts
    • In-Depth With Our Experts
    • Related News
    • Experts In the Media
    • RTI Fellow Program

    Experts

  • Emerging Issues
    • COVID-19 Research
    • Artificial Intelligence
    • Global Health Security
    • Cannabis Research
    • Opioid Research
      • Interventions for Opioid Use Disorders
      • Preventing Opioid Misuse and Overdose
      • Treating Opioid Use Disorders
    • Policing Research and Investigative Science
    • Drone Research and Application
    • E-cigarette Research
    • Zika Virus Research
    • Integrated Governance

    Emerging Issues

  • COVID-19 Research + Response
  • Global Reach
  • Insights Blog
  • Newsroom
  • RTI Press
  • Publications
  • Partner With Us
  • Careers
  • Facebook IconTwitter IconInstagram IconYouTube IconLinkedin Icon
  • Home
  • Impact
  • Publications
  • Patterns of Twitter Behavior Among Networks of Cannabis Dispensaries in California

Patterns of Twitter Behavior Among Networks of Cannabis Dispensaries in California

Peiper, N. C., Baumgartner, P. M., Chew, R. F., Hsieh, Y. P., Bieler, G. S., Bobashev, G. V., Siege, C., & Zarkin, G. A. (2017). Patterns of Twitter Behavior Among Networks of Cannabis Dispensaries in California. Journal of Medical Internet Research, 19(7), e236. [236]. https://doi.org/10.2196/jmir.7137

Copy citation

Abstract

Background: Twitter represents a social media platform through which medical cannabis dispensaries can rapidly promote and advertise a multitude of retail products. Yet, to date, no studies have systematically evaluated Twitter behavior among dispensaries and how these behaviors influence the formation of social networks.

Objectives: This study sought to characterize common cyberbehaviors and shared follower networks among dispensaries operating in two large cannabis markets in California.

Methods: From a targeted sample of 119 dispensaries in the San Francisco Bay Area and Greater Los Angeles, we collected metadata from the dispensary accounts using the Twitter API. For each city, we characterized the network structure of dispensaries based upon shared followers, then empirically derived communities with the Louvain modularity algorithm. Principal components factor analysis was employed to reduce 12 Twitter measures into a more parsimonious set of cyberbehavioral dimensions. Finally, quadratic discriminant analysis was implemented to verify the ability of the extracted dimensions to classify dispensaries into their derived communities.

Results: The modularity algorithm yielded three communities in each city with distinct network structures. The principal components factor analysis reduced the 12 cyberbehaviors into five dimensions that encompassed account age, posting frequency, referencing, hyperlinks, and user engagement among the dispensary accounts. In the quadratic discriminant analysis, the dimensions correctly classified 75% (46/61) of the communities in the San Francisco Bay Area and 71% (41/58) in Greater Los Angeles.

Conclusions: The most centralized and strongly connected dispensaries in both cities had newer accounts, higher daily activity, more frequent user engagement, and increased usage of embedded media, keywords, and hyperlinks. Measures derived from both network structure and cyberbehavioral dimensions can serve as key contextual indicators for the online surveillance of cannabis dispensaries and consumer markets over time.

Download/Explore
Share
  • Share on Facebook
  • Share on Twitter
  • Share on Linkedin
  • Email

Publications Info

To contact an RTI author, request a report, or for additional information about publications by our experts, send us your request.

  • +1 919 541 8787
  • publications@rti.org

Meet the Experts

View All Experts

Y. Patrick Hsieh

Robert Chew

Gayle Bieler

Georgiy Bobashev

Georgiy Bobashev

Gary A. Zarkin

Recent Publications

Article

What's in a name? A data-driven method to identify optimal psychotherapy classifications to advance treatment research on co-occurring PTSD and substance use disorders

Article

Grandi Byen-supporting child growth and development through integrated, responsive parenting, nutrition and hygiene

Article

Effects of additional context information in prescription drug information sheets on comprehension and risk and efficacy perceptions

Article

What Is “socioeconomic position (SEP),” and how might it modify air pollution-health associations? Cohering findings, identifying challenges, and disentangling effects of SEP and race in US city settings

RTI Logo
Partner With Us
  • US Government
  • Commercial
  • Foundations & Associations
  • Multilateral Donors
  • Universities
  • Suppliers
Site
  • Privacy Policy
  • Security Policy
  • Site Map
  • Terms of Use
  • Accessibility
  • Contact Us
Contact Us
Facebook Icon Twitter Icon Instagram Icon YouTube Icon Linkedin Icon
delivering the promise of science
for global good
RTI Health Solutions RTI Innovation Advisors RTI Health Advance

© 2022 RTI International. RTI International is a trade name of Research Triangle Institute. RTI and the RTI logo are U.S. registered trademarks of Research Triangle Institute.