Text Messages Boosted Student Performance but Triggered School Transfers in Kenya

A World Bank study in Kenya found that simple weekly SMS messages to parents improved student test scores, especially among weaker learners, at extremely low cost. However, the same outreach also made parents more likely to transfer their children to other schools, showing how parental engagement can reshape school competition.

A simple SMS sent to a parent's phone may not sound revolutionary, but a major new study from researchers at the University of Chicago, Wageningen University & Research, the World Bank, and the Fair Opportunity Project shows that short educational messages can significantly change how families think about schools and learning.

The research was conducted in more than 200 low-cost private schools in Kenya operated by NewGlobe's Bridge Kenya network. These schools mainly serve low-income families living in urban settlements, peri-urban communities, and rural areas. Researchers wanted to find out whether encouraging parents through mobile phone messages could improve children's academic performance.

The answer was yes, but the study also uncovered an unexpected side effect that surprised researchers.

Weekly Messages, Better Test Scores

Parents participating in the study received weekly SMS messages over nearly a year. Some messages encouraged a "growth mindset," telling parents that intelligence and academic success can improve through hard work, persistence, attendance, and homework support. Other messages gave parents personalized updates about their child's exam scores, class averages, and small practice questions to discuss at home.

The intervention was simple and cheap, but the impact was significant.

Students whose parents received the outreach scored around 0.07 standard deviations higher on tests than students in schools that did not receive the messages. The biggest improvements were seen among children who had previously struggled academically.

Researchers say the program was also extremely cost-effective. Because sending SMS messages costs very little, the intervention generated strong learning gains for a relatively tiny investment. According to the study, the program produced around 12 learning-adjusted years of schooling for every US$100 spent, making it one of the most affordable education interventions studied in recent years.

The Surprising Problem for Schools

While students performed better academically, schools faced a new problem: many parents began moving their children elsewhere.

The study found that students in classrooms receiving the outreach were around five percentage points more likely to leave Bridge schools during the study period. The effect was strongest among high-performing students.

Researchers believe most families were not dropping out of education altogether. Instead, parents were likely transferring their children to schools they believed offered better opportunities or higher-quality learning environments.

This created a major contradiction. The same messages helping children learn were also encouraging families to become more selective about where their children studied.

Why Parents Started Looking for Other Schools

According to the researchers, the messages changed how parents thought about education itself.

Many parents initially viewed academic success as something mostly determined by schools or natural ability. The growth mindset messages encouraged them to believe that learning improves through effort, parental support, and quality teaching.

Once parents became more involved and more aware of the importance of school quality, they also became more willing to compare schools and search for better options.

Families with strong-performing children appeared especially likely to respond this way. Researchers suggest these parents may have interpreted the messages as encouragement to seek more advanced or prestigious schools for their children.

The study argues that this creates a challenge for schools operating in competitive education markets. Encouraging parents can improve learning outcomes, but it may also increase the risk of losing students to rival schools.

A Big Lesson for Education Systems Worldwide

The findings carry important lessons far beyond Kenya.

Around the world, governments and education organizations are searching for low-cost ways to improve learning, especially after years of disruption caused by poverty, inequality, and the pandemic. Mobile-phone-based programs are increasingly attractive because they are affordable and easy to scale.

But the Kenyan study shows that information can reshape education markets in unexpected ways. Even a short text message can influence how parents judge schools, evaluate opportunities, and make decisions about their children's futures.

Researchers say the results suggest governments or independent organizations may need to lead parental engagement programs instead of leaving schools to manage them alone. Schools competing for enrollment may hesitate to empower parents if doing so risks losing students.

The study highlights the powerful role parents play in education. Sometimes, all it takes to change learning outcomes and school choices is a message arriving on a phone screen every Friday evening.