Collaborative research on media, journalism, and politics

Our values
Collaboration We collaborate across countries, disciplines, and levels of research experience.
Research Integrity We strive to produce research that is reliable, replicable, and ethically conducted.
Positive Impact We ask and answer questions about how to improve people's lives.
Recent updates
All updatesAccepted: Long-term and spillover effects of an HIV radio drama, in Social Science & Medicine
Social Science & Medicine accepted GML Working Paper #3 by Dylan W. Groves, Alphoncina Kagaigai, Constantine Manda, Beatrice Montano, Savannah Nivin, Bardia Rahmani, and Donald P. Green. In a cluster-randomized trial in 30 Tanzanian villages, one screening of a radio drama about HIV disclosure still increased HIV knowledge, willingness to disclose, and prioritization of HIV policy 18 months later. Willingness to disclose also rose among attendees’ partners and teenage children.
Updated GML Working Paper #3: Long-term and spillover effects of an HIV radio drama
A revised version of GML Working Paper #3 by Dylan W. Groves, Alphoncina Kagaigai, Constantine Manda, Beatrice Montano, Savannah Nivin, Bardia Rahmani, and Donald P. Green. Among 1,205 respondents in 30 Tanzanian villages, a single screening of a radio drama about HIV disclosure still increased HIV knowledge, willingness to disclose, and prioritization of HIV policy 18 months later, at about half the size of the effects after two weeks. Willingness to disclose also rose among attendees’ partners and teenage children, but not their friends.
Data collection begins for the Family Empowerment Media evaluation in Nigeria
NIGERIA — GML is helping run a randomized evaluation of Family Empowerment Media’s radio campaign on family planning in Nigeria. Household listing began on September 26 in Abia, Katsina, Nasarawa, Ogun, and Ondo states, with data collection by Hanovia.
Salma Emmanuel presents religious leader trafficking study at the TIP Global Practice Summit
MEXICO CITY — GML Researcher Salma Emmanuel presented results from a study on the use of religious media messages to combat human trafficking in Tanga Region, Tanzania, at the inaugural TIP Global Practice Summit, hosted by the Human Trafficking Research Initiative at Innovations for Poverty Action. Swahili messages recorded by a local religious leader made respondents more cautious about job offers for their daughters and reduced stigma toward trafficking survivors by 0.33 standard deviations. The study is co-authored with Dylan W. Groves, Beatrice Montano, and Selestine Makoba and was inspired in part by GML Student Researcher Isabella Tang’s honors thesis on stigma against human trafficking victims. Slides.
Endline survey underway for the Twubakane evaluation in Rwanda
RWANDA — GML is helping run a randomized evaluation of Twubakane, NOVAH’s radio drama on intimate partner violence in Rwanda. The endline survey of 2,400 women across 96 villages is now underway.
GML Working Paper #5: Climate change news and environmental protection
By Alexander Brown, Salma Emmanuel, Donald P. Green, Dylan W. Groves, Beatrice Montano, and Bardia Rahmani. In a lab-in-the-field experiment in rural Tanzania, two short radio news reports raised knowledge that climate change is human-caused and support for low-cost local action, such as voting for pro-environment candidates. Neither report changed costly behaviors like paying more for solar power.
Isabella Tang defends her honors thesis
EASTON, Pa. — Isabella Tang defended her honors thesis, “Stigma as a Barrier to the Reintegration of Human Trafficking Survivors: Evidence from Tanzania.” The thesis uses a vignette experiment embedded in a survey of 1,082 villagers in coastal Tanzania, collected as part of the lab’s first community survey. Sexual servitude and returning with wealth triggered the most stigma.
Alexander Brown defends his honors thesis
EASTON, Pa. — Alexander Brown defended his honors thesis, “International Responses to Starvation as a Weapon of War.” The thesis examines whether publicly shaming perpetrators of intentional starvation changes their behavior.
Savannah Nivin, Kate SantaMaria, and Isabella Tang present at MPSA
CHICAGO — Three GML student researchers presented at the Midwest Political Science Association conference in Chicago.
- Savannah Nivin: “The long-term and spillover effects of a radio drama on HIV knowledge, expressed stigma, willingness to disclose, and political priorities,” with Alphoncina Kagaigai and co-authors
- Kate SantaMaria: “The authority gap: differential effects of judicial and religious elite messaging on social and policy attitudes in Tanzania,” with Benjamin Risley, Zakayo Zakaria, and co-authors
- Isabella Tang: her honors thesis on stigma against human trafficking survivors
Publication: Media capture in Africa, a case study in Tanzania
By Dylan W. Groves, Anya Schiffrin, Marco Kitundu, and Francis Nyonzo. Published in the 2026 Routledge Handbook of Political Corruption. The chapter draws on a hand-coded dataset of Tanzanian media ownership since 1990, surveys of more than 300 journalists, and 20 interviews with journalists and media owners.
Athena Wagner presents at PPSA
Athena Wagner presented at the Pennsylvania Political Science Association conference. Her paper with Salma Emmanuel studies what drives household solar uptake in Tanzania.
Salma Emmanuel featured by Oxford's Centre for the Study of African Economies
Salma Emmanuel was featured by the Centre for the Study of African Economies at the University of Oxford for her research, with Alexander Brown, on how climate change news affects attitudes toward environmental conservation.
GML Working Paper #4: Journalism and blame attribution
By Benjamin Risley, Zakayo Zakaria, and Dylan W. Groves. In a pre-registered experiment with 1,009 respondents in 15 Tanzanian villages, a news report blaming the Member of Parliament for a water service failure reduced willingness to vote for the MP by 8 percentage points, relative to a report that blamed the water bureaucracy.
Isabella Tang presents at the Pi Sigma Alpha National Student Research Conference
WASHINGTON — Isabella Tang presented her research on stigma and human trafficking at the Pi Sigma Alpha National Student Research Conference in Washington, D.C., on February 26–27. She was the only Lafayette student selected to attend.
Kate SantaMaria wins the popular vote award at the Global Research Lounge Symposium
EASTON, Pa. — Kate SantaMaria won the popular vote award for best presentation at Lafayette’s Global Research Lounge Symposium. Her paper with Noela Ringo and Brenda Nyambo was recently published in Frontiers in Communication.
Publication: Radio dramas and willingness to report intimate partner violence
By Kate SantaMaria, Noela Ringo, Kasim Abdallah, Dylan W. Groves, and Brenda Nyambo, in Frontiers in Communication. In a survey experiment with 1,009 respondents in rural Tanzania, a 1.5-minute radio drama made respondents 8.9 percentage points more likely to recommend that survivors report abuse to the police. It did not change attitudes about whether abuse is acceptable.
Marco Kitundu begins his PhD at Northern Illinois University
DeKALB, Ill. — Marco Kitundu began a PhD in political science at Northern Illinois University, where he will study comparative politics. He co-authored a chapter on media capture in Tanzania and continues to work with GML and the Economic and Social Research Foundation on a national-scale randomized controlled trial of public health service delivery.
GML Working Paper #3: The long-term effects of an HIV radio drama
A cluster-randomized experiment in 30 Tanzanian villages finds that a Swahili radio drama about HIV disclosure and treatment still affected knowledge, willingness to disclose HIV status, and health policy priorities 18 months later. Disclosure attitudes spread to respondents’ partners and children, but not to their friends.
Nneka Osadolor completes her PhD at the University of Ibadan
IBADAN, Nigeria — Nneka Osadolor completed her PhD at the University of Ibadan on informality and poverty dynamics in Nigeria (working paper). She is working with GML on a national-scale randomized controlled trial with Family Empowerment Media.
Salma Emmanuel presents at the CSAE conference in Addis Ababa
ADDIS ABABA, Ethiopia — Salma Emmanuel presented the GML working paper on climate change news and public opinion at the Centre for the Study of African Economies conference on Economic Development in Africa, held in Addis Ababa, Ethiopia. The paper is co-authored with student researcher Alexander Brown.
GML Working Paper #2: Media capture in Tanzania
By Anya Schiffrin, Marco Kitundu, and Dylan W. Groves. The paper documents how governments and politically connected owners control news media in Tanzania, and how that control undermines coverage of corruption.
New partnership with NOVAH to study a radio drama in Rwanda
RWANDA — GML formalized a partnership with NOVAH (No Violence at Home) to conduct a large-scale study of Twubakane, NOVAH’s radio drama in Rwanda. An early pilot found that the drama substantially reduced domestic violence. The study is a partnership with the University of Rwanda, RWAMREC, and Innovations for Poverty Action.
2025 summer fellows reflect on their research
Five GML summer fellows worked with Tanzania’s Economic and Social Research Foundation this summer: Athena Wagner, Bode Brewer, Savannah Nivin, Kwegya Awotwi, and Aiden O’Connell. Their projects covered disability rights, youth political participation, coastal cleanup, charter cities, and artisanal mining. Read their reflections on the student blog.
Salma Emmanuel presents at the European Economic Association
BORDEAUX, France — Salma Emmanuel presented “The Effect of Environment and Health News on Residential Solar Adoption: Evidence from Rural Tanzania” at the European Economic Association meeting in Bordeaux. The paper is co-authored with student researcher Athena Wagner.
Noela Ringo begins her PhD in economics at the University of Houston
HOUSTON — Noela Ringo started a PhD in economics at the University of Houston, after two years leading GML projects at the Economic and Social Research Foundation in Tanzania.
GML Working Paper #1: Radio dramas and intimate partner violence reporting
By Kate SantaMaria, Noela Ringo, Kasim Abdallah, Dylan W. Groves, and Brenda Nyambo. This paper was later published in Frontiers in Communication.
Student researchers present at PPSA in Harrisburg
HARRISBURG, Pa. — Benjamin Risley, Kate SantaMaria, and Isabella Tang presented at the Pennsylvania Political Science Association. Ben presented research on watchdog journalism (with Francis Nyonzo and Zakayo Zakaria). Kate presented research on media messages and intimate partner violence (with Noela Ringo and Kasim Abdallah). Isabella presented her honors thesis research on human trafficking.
Kate SantaMaria presents at the Lafayette Undergraduate Research Conference
EASTON, Pa. — Kate SantaMaria presented her research on media messages and intimate partner violence, conducted with Noela Ringo and Kasim Abdallah.
Isabella Tang presents to policymakers at the Pennsylvania Capitol
HARRISBURG, Pa. — Isabella Tang presented her research on barriers to reintegration for human trafficking survivors in rural Tanzania at the Pennsylvania Capitol, as part of the Undergraduate Research at the Capitol program. She was one of two Lafayette students selected.
GML completes its first community survey in Tanzania
TANZANIA — GML completed its first community survey in Mkinga District, in coastal Tanzania. The survey supports six research projects:
- Media messages and intimate partner violence reporting (Kasim Abdallah, Noela Ringo, Kate SantaMaria)
- The effect of climate change news (Salma Emmanuel, Alexander Brown)
- How watchdog journalism focuses responsibility (Francis Nyonzo, Benjamin Risley, Zakayo Zakaria)
- Drivers of solar demand (Salma Emmanuel)
- How courts and religious authorities influence social attitudes (Salma Emmanuel, Benjamin Risley, Kate SantaMaria)
- Barriers to reintegration for human trafficking survivors (Isabella Tang)
The survey was led by the Economic and Social Research Foundation, with field manager Neema Msechu and assistant manager Andrew Lusakelo. Enumerators: Husna Haruna Majura, Michael Zuakulu, Asha Rashid Matimu, David Maurilio Lumato, Sylivana Gotrid Karia, Anselem Richard Kadallah, Lucia Nyambo, Shehe Omary Shehe, Angela Jacob Kitali, Hamza Hassan Mtinanga, Careen Ringo, Thomas Nkondola, and Violet Urio.
GML at the African Studies Association
CHICAGO — Student researchers Benjamin Risley and Kate SantaMaria and researcher Francis Nyonzo presented at the 2024 African Studies Association meeting in Chicago. Risley and Nyonzo presented “How Watchdog Journalism Facilitates Political Accountability: Experimental Evidence from Tanzania.” SantaMaria presented “Class, Tribe, and Gender: The Determinants of Court Shopping in Rural Tanzania,” co-written with Noela Ringo.
Alana Kipnis on social media activism for Indigenous land rights
Alana Kipnis wrote an overview of her research on the media strategies Maasai communities use to resist land evictions. She plans to test which messages are most effective.
Zakayo Zakaria featured in J-PAL's African Scholar Spotlight
The Abdul Latif Jameel Poverty Action Lab featured Zakayo Zakaria for his ongoing research on food security in Tanzania.
Salma Emmanuel on how local radio can raise climate change awareness in Tanzania
Salma Emmanuel published an overview of her research with the Kleinman Center for Energy Policy at the University of Pennsylvania. An expanded version of the study will launch in Tanga.
Afya Yako results presented at the Mercury Project Solutions Summit in Nairobi
NAIROBI, Kenya — Zakayo Zakaria and Dylan W. Groves presented preliminary results from the Afya Yako project at the Social Science Research Council’s Mercury Project Solutions Summit in Nairobi, Kenya.
IPA launches a pilot on religious leaders and human trafficking
TANZANIA — Innovations for Poverty Action’s Human Trafficking Initiative announced “Leveraging Local Religious Leaders to Counter Human Trafficking in Rural Tanzania,” with Beatrice Montano, Salma Emmanuel, and Dylan W. Groves. Summer fellow Isabella Tang is a lead researcher on the project.
Zakayo Zakaria presents Afya Yako results to Tanzanian health officials
TANZANIA — Zakayo Zakaria and ESRF presented early results from the Afya Yako health project to Dr. Tumaini Kengia, Coordinator for Regional Health Management. Dr. Kengia recommended further dissemination, including at the national forum of Regional and District Medical Officers.
Salma Emmanuel presents climate change news research in Philadelphia
PHILADELPHIA — Salma Emmanuel presented “The Effect of Climate Change News on Public Opinion about the Environment” at the environmental politics mini-conference held alongside the American Political Science Association meeting in Philadelphia. The paper uses a survey experiment to test how climate news affects rural Tanzanians’ knowledge, attitudes, and willingness to act.
2024 summer fellows reflect on their research in Tanzania
DAR ES SALAAM, Tanzania — Five GML summer fellows traveled to Tanzania to support research projects: Benjamin Risley, Alana Kipnis, Saira Ali, Alexander Brown, and Isabella Tang. They worked on pastoralism, public health services, economic development, and human trafficking. Read their reflections on the student blog.
Zakayo Zakaria co-leads a training on experimental research
Zakayo Zakaria helped lead a 4.5-day workshop, “Conducting Experimental Research,” with the Economic and Social Research Foundation and Busara. The course trained researchers from across Sub-Saharan Africa in randomized evaluations. Zakaria presented the design, early results, and lessons from the Afya Yako project.
ESRF launches a national audit of 465 health facilities
TANZANIA — The Economic and Social Research Foundation team, led by Zakayo Zakaria, Noela Ringo, Brenda Nyambo, and Marco Kitundu, launched a nationwide audit of 465 health facilities in Tanzania after training 48 enumerators in Dar es Salaam. The audit is part of Afya Yako, a program supported by the Social Science Research Council’s Mercury Project and the New Venture Fund.
Five students named 2024 summer fellows
Five Lafayette students will intern with the Economic and Social Research Foundation in Tanzania this summer: Benjamin Risley, Alana Kipnis, Alexander Brown, Saira Ali, and Isabella Tang.
LatAm Journalism Review covers the UNESCO journalism report
Mariana Alvarado wrote about the UNESCO report “Journalism for Development” in LatAm Journalism Review.
Project Syndicate: "Quality Journalism Is More Important Than Ever"
By Joseph E. Stiglitz, Anya Schiffrin, and Dylan W. Groves.
UNESCO publishes "Journalism for Development"
Joseph E. Stiglitz, Anya Schiffrin, and Dylan W. Groves published a report with UNESCO on the role of journalism in promoting democracy, political accountability, and sustainable development.
Salma Emmanuel presents "The Persuasive Power of Supreme Courts" at MPSA
CHICAGO — Salma Emmanuel presented the paper at the Midwest Political Science Association conference in Chicago. Co-authors: Donald P. Green, Dylan W. Groves, Constantine Manda, Beatrice Montano, and Bardia Rahmani.
Marco Kitundu presents "The Supply of Watchdog Journalism" at MPSA
CHICAGO — Marco Kitundu presented the paper, co-authored with Dylan W. Groves and journalist Isakwisa Mbyale, at the Midwest Political Science Association conference in Chicago.
Noela Ringo presents SMS vaccine research to the African Politics Conference Group
Noela Ringo presented “SMS Campaign to Increase COVID-19 Vaccine Take-up in Tanzania” at the African Politics Conference Group colloquium. Co-authors: Constantine Manda, Said Rashid, Christina Fille, Anelisa Rushaigo, and Andrew Kilale.
Noela Ringo presents SMS vaccine research in Argentina
LA PLATA, Argentina — Noela Ringo presented “SMS Campaign to Increase COVID-19 Vaccine Take-up in Tanzania” at the Universidad Nacional de La Plata.
GIJN: Measuring journalism's impact
Anya Schiffrin and Dylan W. Groves wrote for the Global Investigative Journalism Network about their new research with the International Consortium of Investigative Journalists.
IJNet: 7 things to know about measuring impact in journalism
Anya Schiffrin and Dylan W. Groves summarized lessons from their review of how to measure the impact of journalism.
GML at the African Studies Association in San Francisco
SAN FRANCISCO — Salma Emmanuel presented “The Persuasive Power of Supreme Courts.” The team, led by Salma Emmanuel and Hasnat Aslam, will incorporate feedback into another round of data collection in Tanzania in January 2024. Dylan W. Groves presented research on government responses to watchdog journalism.
Featured researcher
Zakayo Zakaria leads GML fieldwork at the Economic and Social Research Foundation in Dar es Salaam. In 2024 he helped launch a national audit of 465 health facilities for Afya Yako and presented early results to Tanzania's Coordinator for Regional Health Management.
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Afya Yako
Working with the Economic and Social Research Foundation, the team studies local journalism and public health service delivery in Tanzania.
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