Solutions
Evidence-based

No Means No

The No Means No program equips youth with practical skills that can be used to prevent sexual assault and navigate everyday risks in online and offline situations.

USA Malawi Kenya South Africa Zambia Mozambique Education and life skills
This program is implemented by No Means No Worldwide (NMNW)
No means no worldwide south africa hero image

Program participants in South Africa. Photo credit: No Means No Worldwide.

1

Quick facts

Evidence-based

INSPIRE pillar

Education and life skills

Effectiveness of intervention type

Effective

Evidence type

Randomized control trial

2

Context

Sexual violence against girls and young women is a major human rights and public health issue, impacting 1 in 5 girls before their 18th birthday globally [1]. Education and Life Skills is a key strategy within INSPIRE: Seven Strategies to End Violence Against Children, equipping children and adolescents with knowledge, socio-emotional and life skills and ensuring schools are safe places to learn [2]. 

Although adults and systems are responsible for ensuring children are safe through the other six strategies: implementation and enforcement of laws, norms and values, safe environments, parent and caregiver support, income and economic strengthening, and response and support services, education and life skills ensure that, where systems fail and people engage in harmful behaviors, young people know what to do. To date, limited research exists on solutions to prevent sexual violence against traditionally marginalized girls and young women, particularly indigenous populations, children living with disabilities, and youth in conflict settings.

No Means No Worldwide: Violence is not inevitable. Credit: No Means No Worldwide.

No Means No Worldwide: Violence is not inevitable. Credit: No Means No Worldwide.

No Means No is one of the few evidence-based programs that has shown effectiveness across multiple settings and shows promise in several others through adaptations that are informed by practitioner experience, including a 90-minute session to respond to increasing resource constraints after global development aid contracted in 2025 and digital self-defense. The program has also been delivered through faith-community settings, offering lessons on working with established community structures and influential leaders. 

3

About the program

What it is and how it works

The No Means No methodology, which was initially developed and researched by No Means No Worldwide and Ujamaa Africa, has now been implemented by more than 100 organizations and governments globally. The model is designed to equip youth with practical skills that can be used to prevent sexual assault. 

Typically taught to youth ages 10-20 as a 10-hour intervention, core concepts help youth navigate everyday risks in online and offline situations, including: grooming and coercion, consent and boundaries, responding to harassment and online sextortion, navigating harmful pornography, how to seek help, and mental health resilience. Through practical and interactive activities grounded in Empowerment Self-Defense—a holistic, survivor-centered, feminist approach that combines mental, verbal, and physical strategies—youth participants build essential knowledge, develop empowering attitudes and beliefs, and practice verbal and physical self-defense strategies. They also learn ways to safely disclose abuse and access local support services as needed.

 

Evaluation and program outcomes

The No Means No program has been independently evaluated in multiple settings through randomized control trials and quasi-experimental studies.

American Indian Community, United States

Independent researchers at the University of Nebraska evaluated the No Means No program among American Indian girls ages 12-18 in the Great Plains region of the United States using a quasi-experimental design. American Indian girls and young women are known to experience disproportionate rates of sexual violence compared to other youth in the United States [3] and to experience significant harms as a result of violence [4]. 

The program group consisted of 74 girls living on an American Indian reservation attending one middle school and one high school, and the comparison group included 181 American Indian girls living outside the reservation in the same state who attended five middle schools and three high schools.

Adaptations made to the No Means No program in collaboration with community members included incorporating the local language and using contextually relevant scenarios.

Pre-and post-program surveys showed:

80% decrease in the number of sexual assaults

experienced by girls who participated in the program compared to the control group.

Experiences of sexual harassment decreased by 26%

among girls who participated in the program, compared to those who did not.

Increased knowledge in all areas of self-defense and resisting a sexual assault

shown by girls in the program.

*5

No significant difference in experiences of physical dating violence

in those who received the program and those who did not.

Malawi

In Malawi, the IMpower program – the curriculum No Means No was derived from – was implemented by local partner Ujamaa Pamodzi through the UNICEF Safe Schools Program in designated high-needs settings, including Lilongwe, Dedza, and Salima in 2015-2016. Independent researchers at Johns Hopkins University conducted a cluster-randomized controlled trial, randomly selecting primary and secondary schools as intervention or control sites. Within schools selected for the intervention, 60-100 girls were randomly selected to participate. Girls in the control group received the standard Ministry of Education 2-hour life skills, sexuality and health curriculum.

The experience of sexual violence in the past year decreased from 15.2% to 9.2%

among participating students, while there was no change in the control group.

The rate of sexual violence decreased

significantly from nearly 20 incidents down to 16 incidents per 1000 students over a 3-month period. In the control group, the number of incidents increased.

Students' knowledge of self-defense increased threefold

among participants and did not increase significantly in the control group.

Disclosure of experiences of sexual violence increased from 73.0% to 83.7%

and from 68.2% to 74.8% in the control group.

The proportion of sexual assaults by family members decreased from 26.0% to 8.9%

among participating primary school students, while the distribution of assaults by other perpetrators did not change.

43% of girls used skills learned during the training to stop forced sex

including verbal skills (49% of girls), physical skills (13%), and both verbal and physical skills (38%).

53% of girls said they used skills gained to stop harassment

following the training.

52% of girls employed skills gained to stop physical violence

following the training.

Overall student confidence increased

in both the participant and control groups [6].

*6
South Africa

Researchers from RTI International, Karolinska Institutet, and No Means No South Africa (NMNSA) conducted a cluster-randomized controlled trial to evaluate the No Means No program in Gqeberha, South Africa, among girls and boys ages 10-19. Thirteen primary and secondary schools were randomized to receive the intervention for girls only, or for both girls and boys, or to be a part of the control group.

  • There were no statistically significant differences in experiences of sexual violence between girls participating in the program and girls in control schools. Experiences of past-year sexual violence increased, though this was not statistically significant.
  • Implementation challenges and adaptations, including the post-COVID-19 recovery context and the need to reduce session hours from 12 to 8, may have contributed to these inconclusive findings. In addition, two schools decided not to participate, reducing the study’s power to estimate differences between groups [9].  

The trial's mixed-methods design included a qualitative sub-study that offers additional context. Preliminary results suggest the intervention had positive effects not captured by the primary quantitative outcome. 

Girls described retaining and applying self-defense skills over time

contributing to a sense of confidence and safety.

Girls in the intervention arm did not perceive increased risk from the knowledge or skills

gained through the program.

Girls reported greater confidence disclosing experiences of violence,

which provided psychological relief in a context where past disclosures had often been met with less care. Increased comfort disclosing violence, rather than increased incidence, may partly explain the apparent rise in reported sexual violence noted above.

A new understanding of consent and personal boundaries

Gained by girls

Encouraged others to disclose their own experiences of violence

by sharing what they learned with peers and family members.

Reportedly unchanged:

Broader gender norms and victim-blaming attitudes.

*10
4

Adaptations

Context:

Expanded Church Response (ECR), a Christian faith-based NGO, works to complement government efforts to address gender-based violence and violence against children. These include Zambia's Ministry of Chiefs’ Gender Divisions that engage faith and traditional leaders to combat harmful norms driving gender-based violence, through information sharing and community dialogues. 

Adaptation:

In 2021, through PEPFAR's Faith and Communities Initiative (FCI), ECR convened faith leaders to expand HIV and violence prevention messaging, building faith community support for the No Means No program as aligned with broader goals of ending violence and oppression.

ECR did not need to make substantial changes to the curriculum itself, but adapted the delivery approach. They leveraged existing FCI relationships to secure venues, build community trust, and expand participant reach into church congregations. ECR worked with churches to support the roll-out of No Means No in the community through messaging such as posters and church announcements, helping build community acceptance and encourage participation. In communities where religious leadership carries significant influence, this approach meaningfully increased reach, and boys and girls from local congregations joined the No Means No sessions as a result. Opening prayers were also incorporated into community sessions, consistent with Zambia’s predominantly Christian context.

As elsewhere, girls learned self-defense skills focused on escaping an attacker, while boys learned to be positive bystanders.

Findings:

Pre- and post-program surveys showed:

  • Boys' knowledge of skills to prevent and respond to sexual violence rose from 41% to 77%, and positive attitudes toward gender equality, consent, and violence prevention rose from 56% to 82%. The ability to identify safe, effective bystander intervention rose from 45% to 81%.
  • Girls' knowledge of skills to prevent and respond to sexual violence rose from 48% to 76%, and positive attitudes toward self-worth, gender equality, and personal safety rose from 59% to 79%. Understanding that attackers, not victims, are responsible for sexual violence rose from 26% to 68%.
Learnings:
  • Substantial modifications may not be needed. The curriculum required no substantive content changes to be effective in this faith community context.
  • Invest in faith leader engagement early. ECR's reach depended on pre-existing relationships with faith leaders; implementers without those relationships should budget time to sensitize leaders before rollout, since their endorsement drives participation and acceptance.
  • Align with national and community priorities. Engaging faith, community, and government gatekeepers positioned NMNW as complementary to existing violence prevention efforts, facilitating acceptance. Implementers should map the local GBV policy landscape for similar opportunities.
  • Use faith infrastructure as a delivery asset. Church venues, announcements, and opening prayers expanded reach and comfort without requiring curriculum changes.
Voices from No Means No ECR Zambia. Credit: No Means No Worldwide

Voices from No Means No ECR Zambia. Credit: No Means No Worldwide

Context:

To ensure greater accessibility for people living with disabilities, implementing partners requested No Means No curriculum adaptations after identifying participants with mobility, visual, and auditory disabilities who couldn't fully engage with standard materials, recognizing that inclusive skills and delivery were essential for meaningful participation.

Adaptation:

NMNW co-created a disability-inclusive curriculum with Light for the World (LFTW) and Girl Child Rights (GCR), piloting activities and gathering feedback through a two-day workshop with 28 government and NGO representatives.

Using the LFTW Resource Book for Disability Inclusion and a new No Means No Facilitator's Guide to Teaching People with Disabilities, NMNW trained 27 instructors and 5 trainers of trainers to recognize disability-related biases, use inclusive facilitation methods, and deliver the curriculum to participants of diverse abilities.

Adaptations included:

  • Large print, simplified visual aids, and facilitator notes with adaptation tips.
  • Multi-sensory teaching (visual, verbal, sign language) and simplified language for cognitive accessibility.
  • Sessions extended from 60 to 90 minutes for more repetition and practice time.
  • Customized scenarios reflecting real-life situations youth with disabilities face.
  • Physical defense techniques adapted for sitting positions, limited mobility, or assistive devices, such as using body language and sign language to set boundaries, using mobility aids in place of a kick or strike, and individualized training on target areas, framed around "What I Can Do."
Findings:

Focus groups and key informant interviews conducted in June 2026 in Sofala, Mozambique, found:

  • Consent and self-advocacy improved. One facilitator observed "participants were asking for consent from each other; they were respecting each other," and a girls' FGD participant said, "If a classmate touches me or does something I don't like, I will say no."
  • Disclosure reporting improved. An education official noted, "girls now know how to report, and they share information with others."
  • Peer violence declined. One school director said, "Before this program, it was normal for students to fight during every long break. With time, things changed for the better."
  • Peer attitudes toward disability shifted from mockery and occasional assault toward shared participation and advocacy. One director noted, "before, students would mock and discriminate against students with disabilities — sometimes even assault them. But with this program, things changed for the better," and a stakeholder at another school said, "I liked the program because it is inclusive. I would like to become an instructor." One FGD participant with disabilities called the program "breaking barriers between people with and without disabilities — everyone has the opportunity to defend themselves."
  • Physical self-defense components, which need adequate space, were sometimes moved to temporary or outdoor settings when classrooms weren't available — flagged by school directors and facilitators as a quality concern.
Learnings:
  • The number of children living with disabilities in each class was lower than expected, limiting reach and the data available to assess disability-specific impact of the program.
  • Institutional buy-in mattered - schools where principals actively set fixed days/times for sessions saw noticeably better outcomes. The highest drop-out was observed when activities were scheduled outside of school hours among predominantly male groups in the most schedule-constrained schools.
  • Longer sessions facilitated accessibility but also contributed to drop-out. 
    Future considerations include reducing the sessions’ duration from 90 to 60 minutes and removing repetitive activities.
  • Gaps between facilitator certification and program start (driven by the school calendar) led to some loss of content retention among facilitators before implementation.
  • Age-cutoff flexibility was needed, since students with disabilities were often older than same-grade peers and didn't meet original eligibility criteria.

NMNW responded to partner requests for a condensed curriculum due to resource constraints and an inability to deliver full instructor trainings and an 8-12 hour program after the loss of USAID funding. This was built on an internal analysis of 144 girls’ testimonial videos on their use of program skills to prevent and mitigate attacks, which found that 86% of assaults were prevented using verbal skills.

Adaptation:

NMNW developed and piloted an abridged No Means No curriculum in Kwa-Zulu Natal to expand access in resource-constrained settings. The “Worth Defending: No Means No Basics” 90-minute verbal and mental skills-only curriculum can be delivered by social workers or others after completing a short online training, eliminating the full instructor certification requirement.

The “Worth Defending” curriculum, designed for youth ages 9 to 20, focuses exclusively on mental and verbal skills to prevent sexual violence and does not teach physical skills.

Findings:
  • Pravisha Dhanapalan, Director at Lifeline Durban shared: “A short, well-facilitated prevention intervention can create immediate, measurable, and meaningful change, especially when paired with strong response systems.” She also said, “Its ability to build self-worth, confidence, and help-seeking behavior in a short time makes it both practical and impactful.”
  • Early data analysis of pre- and post- program questionnaires from 12,284 female participants demonstrated effectiveness in equipping participants with mental and verbal skills that can help them recognize, interrupt, and escape violence:
    • Knowledge scores increased by 148%, rising from 33% to 82% after the intervention.
    • Attitude scores shifted from 65% to 84% (+30%). 
    • Self-Efficacy scores rose from 60% to 86% (+43%)
  • A cost analysis found that the Worth Defending program costs ~ $1.40 per beneficiary when implemented as an add-on program (likely higher if implemented independently).
Learnings:
  • The pilot data suggest that the Worth Defending 90-minute model is feasible and can strengthen participants’ knowledge, attitudes, and perceived self-efficacy to recognize, interrupt, and escape violent situations. 
  • This curriculum significantly lowers the barrier to entry for partner organizations, allowing them to reach more participants more quickly and at lower cost. 
  • The implementing partner prefers the full 8-hour program and suggests the 90-minute version expands access rather than replacing the full gold-standard program. 
  • NMNW plans to expand implementation and evaluation of this curriculum in additional contexts before scaling more broadly or making the content open source.
Context:

NMNW and partner organizations are actively working to adapt the traditional evidence-based face-to-face program to modern societal norms for how young people seek information and education – from online and media-driven sources, using digitally-driven and media-forward programming to meet adolescents where they are. Increasingly, young people also need digital self-defense skills so they can navigate these channels safely and with confidence, free from the increasing harms of technology-facilitated sexual violence. NMNW partners across East and Southern Africa, West Africa, and Mexico have increasingly requested digital safety content for the No Means No curriculum.

A 2023 RCT on No Means No in Gqeberha, South Africa, found alarming rates of technology-facilitated sexual violence (TFSV): 43% of girls in secondary school had experienced TFSV in the past year, and those affected had nearly four times higher odds of depression or anxiety [10]. These findings mirror global trends and highlight an urgent, unmet need for digital safety programming.

Adaptation:

To design the module, No Means No South Africa (NMNSA) surveyed 46 high school students (aged 16-18) in Gqeberha, using open-ended questions to explore their experiences with TFSV and their knowledge, attitudes, and learning needs.

Findings:

The formative research found:

  • Unsolicited advances: Girls described being contacted online by men with inappropriate comments, requests for nude photos, or money for sexual content.
  • Cyberstalking: Persistent, invasive contact from strangers was common; some girls were stalked both digitally and physically, while boys described adults posing as peers.
  • Coercion: Several participants described being coerced into uncomfortable conversations, including one account of online sexual pressure and exploitation.
  • Gendered differences: Girls reported more frequent and intense TFSV — harassment, stalking, rumors, coercion — while boys more often described exposure to explicit content, peer pressure, or account hacking.
  • Perpetration: A few participants admitted to bullying or other harmful online behavior themselves.

It also surfaced opportunities:

  • Knowledge gaps: Understanding of digital consent, reporting options, and online boundaries was limited, despite widespread exposure to TFSV.
  • Strong interest in learning: Participants wanted to know how to protect themselves, support peers, and report inappropriate behavior.
  • Cultural barriers: Stigma and peer dynamics kept TFSV largely undiscussed; many had never talked about it before.

These findings shaped a one-hour digital self-defense module equipping girls to recognize online safety risks, identify types of TFSV, and prevent and respond to it. The module was integrated into the standard 10-hour No Means No curriculum.

NMNW and NMNSA piloted the module with 673 adolescents. Implementation challenges led to inconclusive pre-post results, and further evaluation ended when the NMNSA office closed.

Qualitative feedback from returning participants highlighted broader impacts of No Means No overall:

  • Girls described gains in confidence, self-worth, and boundary-setting, using physical and verbal skills to protect themselves and others: "I realized that it's very important to love yourself and take care of yourself and know how confident you are—and no one can touch your body." Others said, "Now I know I am worth defending," and "I feel more confident because I know I can protect myself."
  • Boys reported de-escalation skills and personal growth: "When other kids are fighting, I de-escalate because they will end up injuring each other." "I used to beat people up, but now I no longer do those things because of No Means No." "I am able to trust myself because of No Means No and I am able to be confident in other things as well."
  • A ripple effect emerged, with students teaching peers and siblings: "I taught my younger sister how to do the fighting stance," and "Scream, kick, scratch, pinch—because our body is a weapon."
Learnings:
  • The pilot surfaced challenges in the way outcomes were measured. Program staff found that when they sat down and talked with participants directly, they clearly remembered the content, even when it didn't show up in test results. Because the pre-posts were anonymous, staff observed participants answering questions randomly or without much investment, raising questions about whether the pre-post tool was capturing real learning.
  • Collaborating with additional implementing partners is needed to more accurately assess the module's impact.
  • Qualitative feedback captured described perceived changes in confidence, boundary-setting, and agency that quantitative surveys missed.
  • The module shows strong potential to help young people stay safe online. Next steps include expanding it with more partners, developing a standalone digital-safety curriculum, and building a fully digitized version of No Means No for direct-to-youth delivery without requiring a trained instructor.
5

Real world impact

Since 2019, NMNW has partnered with more than 130 local organizations in 15 countries (currently working in Afghanistan, Bangladesh, Eswatini, Mozambique, Nigeria, South Africa, Uganda, and Zimbabwe) to provide over 1.5 million youth with critical skills to reduce their risk of sexual violence. 

Results from >650,000 pre/post surveys administered from 2019-2025 showed girls had an 80% improvement in knowledge and 50% improvement in attitudes, and boys had a 147% change in knowledge and 69% improvement in attitudes after completing No Means No.

Program facilitators, parents, students, and educators consistently share stories of how the program has helped them stop abuse, seek help, and prevent harm to others:

The No Means No program has changed how I view myself. Now I know that I'm worth defending and I'm strong. ”

Female graduate

Being a man is not about beating up others; to be a man you have to be a good man. ”

Male participant

I learned some important skills in our 'No Means No' training, and yesterday, I used them. A neighbour tried to get me to go with him in his car, but I remembered to trust my feelings and use my voice. I stood up straight and said, 'NO! I am not coming!' He tried to grab me, so I stepped back and shouted 'STOP! I will call the police!' He left, and I ran to a safe place and called my mum. I am glad I took the training. It helped me stay safe. Thank you for teaching us, I feel more confident now! ”

12-year-old participant, APIN Nigeria

This program was well-received and has positively impacted the lives of boys and girls. There was positive behavior change among youth as noticed in reduced incidents of fighting, bullying, derogatory comments to girls, and respect for each other. ”

Zimbabwean Teacher
6

Challenges and lessons learned

Challenges
  • The No Means No program has demonstrated adaptability across 15 countries. Routine pre/post monitoring has generally identified improvements in knowledge and attitudes, although methods and results vary across settings. However, in some complex settings (e.g., long-running informal settlement sites and post-COVID-recovery contexts), rigorous RCTs measuring experiences of sexual violence have produced inconclusive or null results [8, 9]. This gap points to a narrower challenge: refining how sexual violence outcomes are measured and evaluated, rather than a broader question about the program's adaptability.
  • In some settings, findings of 'no effect' — or even non-significant increases — in reported sexual violence outcomes may partly reflect greater comfort disclosing sexual violence, rather than an actual rise in violence. This is plausible given the consistently positive results from qualitative research and regular program monitoring (e.g., knowledge, attitudes, self-reported skill use) in these same settings, and further underscores the need for improved outcome measurement tools for sexual violence against children.
  • In communities where the intervention has been implemented for several years, self-defense techniques may become widely known even outside the program due to program participants sharing knowledge learned with peers and household members — including among control groups and potential perpetrators — which can shrink the measured difference between intervention and control groups. This means evaluations in long-running sites may understate the program's true effect, rather than indicating the program itself has become less effective [8].
Lessons learned
  • The program has shown effectiveness in reducing sexual violence victimization across multiple settings — from Malawi and Kenya to American Indian communities in the U.S. Inconclusive or null findings elsewhere underscore the need for continued evaluation, both in new settings and where the program has run for years.
  • The 90-minute version builds mental and verbal skills to recognize, interrupt, and escape violence, but rigorous evidence of reduced sexual violence incidence is based on the full 12-hour curriculum. Shorter, lower-cost models like Worth Defending (~$1.40/beneficiary) can still expand reach without replacing the full program — a viable way to balance scale and rigor under resource constraints.
  • Empowerment Self-Defense programs like No Means No can be successfully adapted for young people with disabilities.
  • Adapting for different populations requires operational flexibility, not just content changes to the curriculum. The Mozambique disability work suggests success hinges on scheduling, facilitator training timelines, and age-eligibility flexibility as much as the adapted materials themselves.
  • Community gatekeeper engagement can expand reach without substantial curriculum changes. Zambia's faith community work showed that partnering with trusted local infrastructure — faith leaders, venues, existing communication channels — expanded participation and credibility with no content modification.
  • Qualitative and participatory approaches capture impact that quantitative tools and rigorous RCTs sometimes miss. In Mozambique and South Africa, interviews revealed shifts in confidence, boundary-setting, bystander behavior, and reporting that surveys failed to register, especially where survey design (anonymity, language mismatch) was flawed. Future evaluations should use mixed methods to capture the program's full impact.
  • It is important to strike a balance between allowing partners to contextualize the curriculum while holding firm to program fidelity.
7

Sources and contact

[1] Fang, X., Ren, J., Kang, J., Ligiéro, D., Fry, D., Annor, F. B., Burrows, S., Butchart, R. A., Diaz, K. J., Fang, Z., Fernandez, B., Finkelhor, D., Ginestra, C., Gong, X., Howard, A., Jin, W., Krzeczkowska, A., Kurdi, Z., Liu, J., ... Vermeulen, I. (2026). A systematic review of the global and regional estimates of the prevalence of sexual violence against children. Nature Human Behaviour. https://doi.org/10.1038/s41562-026-02436-1   

[2] World Health Organization. (2016). INSPIRE: Seven strategies for ending violence against children. World Health Organization.  https://www.who.int/publications/i/item/9789241565356

[3] Rutman S., Park A., Castor M., Taualii M., & Forquera R. (2008). Urban American Indian and Alaska Native youth: Youth Risk Behavior Survey 1997–2003. Maternal and Child Health Journal, 12(1), 76. https://doi-org.proxy1.library.jhu.edu/10.1007/s10995-008-0351-3 

[4] Edwards K. M., Banyard V. L., Charge L. L., Kollar L. M. M., & Fortson B. (2021). Experiences and correlates of violence Among American Indian and Alaska Native youth: a brief report. Journal of Interpersonal Violence, 36(23–24), 11808–11821. 

[5] Edwards, K. M., Siller, L., Wheeler, L. A., Charge, L. L., Charge, D. P. L., Bordeaux, S., Herrington, R., Hopfauf, S. L., & Simon, B. (2022). Effectiveness of a Sexual Assault Self-defense Program for American Indian Girls. Journal of Interpersonal Violence37(15–16), NP13245–NP13267. https://doi.org/10.1177/0886260521997942

[6] Decker, M.R., Wood, S.N., Ndinda, E. et al. (2018). Sexual violence among adolescent girls and young women in Malawi: A cluster-randomized controlled implementation trial of empowerment self-defense training. BMC Public Health, 18 (1-12). DOI: 10.1186/s12889-018-6220-0

[7] Sinclair J., Sinclair L., Otieno E., Mulinge M., Kapphahn C., & Golden N.H. (2013). A self-defense program reduces the incidence of sexual assault in Kenyan adolescent girls. Journal of Adolescent Health. 53(3):37480.  https://doi.org/10.1016/j.jadohealth.2013.04.008

[8] Sarnquist, C., Friedberg, R., Rosenman, E. T., Amuyunzu Nyamongo, M., Nyairo, G., & Baiocchi, M. (2024). Sexual assault among young adolescents in informal settlements in Nairobi, Kenya: Findings from the IMPower and SOS cluster-randomized controlled trial. Prevention Science, 25(4), 578-589. https://doi.org/10.1007/ s11121-023-01595-1 

[9] Hartmann M., Mutangabende S., Nash S., Browne E.N., Hatcher A., Kågesten A.E., & Roberts S.T.. Effectiveness of an empowerment-based self-defense program among South African girls: results from a cluster-randomized control trial in schools. BMC Womens Health. 2025 Mar 14;25(1):119. doi: 10.1186/s12905-025-03647-w. 

[10] Hartmann, M. A., Browne, E. N., Hatcher, A., Mutangabende, S, Wallengren., Goba, M., Mungwari, P., Kagesten, A. & Roberts, S. T. (2024). Effectiveness of an empowerment-based self-defense program among South African girls. Presentation at Sexual Violence Research Initiative Forum 2024, Cape Town, South Africa. 

[11] Hartmann M.A., Browne E., Mutangabende S., Mungwari P., Stotesbury D., Woollett N., Kågesten A., Roberts S.T., Hatcher A. (2025). Prevalence of technology facilitated and other gender-based violence among adolescent girls in Gqeberha, South Africa and its association with probable common mental disorders. Frontiers in Global Women’s Health. 9;6:1546901. doi: 10.3389/fgwh.2025.1546901. 

Special thanks to Danielle Stotesbury, Senior Data to Action Specialist at No Means No Worldwide, for co-developing this case study.

Additional gratitude goes to Pravisha Dhanapalan, Director at Lifeline Durban, and the team at Girl Child Rights (GCR).

For more information on this case study, you can reach out to Danielle at [email protected] or Kirk Friedrich, Executive Director, at [email protected].

Last updated: 07 August 2026

Share your story!

Do you have a experience with the programs on this website, or any other interventions that aim to address or reduce childhood sexual violence? 

Whether you're a advocate, activist, implementer or a participant of a program, we'd love to hear from you!