Can Montessori education produce better long-term outcomes than traditional methods?

Does Montessori boost long-term wellbeing more than traditional schooling?

Yes, and the evidence is strong. A 2025 study of 1,907 adults (ages 18–81) found that those who attended Montessori school as children reported higher wellbeing in adulthood, even after controlling for socioeconomic status [2]. The effect was dose-dependent: the longer someone attended Montessori, the higher their wellbeing. The most powerful period was preschool (ages 3–6), and completing a full three-year cycle (rather than just two years) gave the biggest boost [2]. This suggests that Montessori's emphasis on independence and self-directed learning may build psychological resources that pay off decades later.

The same study also found that transitioning out of Montessori at the end of a three-year cycle (ages 6, 9, or 12) was linked to higher 'engagement' wellbeing compared to leaving mid-cycle [2]. This implies that disrupting the Montessori method mid-stream may weaken its long-term benefits.

Does Montessori improve self-control and thinking skills?

The evidence is mixed but leans positive for younger children. A 2023 study in China compared 6- to 8-year-olds who had attended Montessori preschool versus traditional preschool, using parent reports of executive function (the mental skills that help you plan, focus, and control impulses). Children from Montessori backgrounds scored better on several key indexes, and even where differences weren't statistically significant, their average scores were still higher [3]. This suggests a real, if modest, advantage in self-regulation.

However, a much larger 2024 study of over 8,000 Dutch students found no significant difference in self-regulated learning skills between former Montessori and traditional secondary students when they entered higher education [1]. The one bright spot: former Dalton students (another alternative method) did report a better fit between their secondary and higher education. So the self-regulation advantage may depend on the specific alternative method and the age group studied.

Does Montessori lead to better math skills?

It can, but only under the right conditions. A 2021 review of math achievement studies found that Montessori students sometimes outperform peers in math, but not consistently [5]. The key factors are program fidelity (how closely the school follows Montessori principles) and enrollment duration. When schools stick to the method and students stay for multiple years, the math advantage is more likely. Also, the advantage shows up more on conceptual tests (understanding why math works) than on rote calculation [5]. So a short or poorly implemented Montessori program probably won't boost math scores, but a high-fidelity, long-term one might.

Sources used in this answer

Related research questions