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Nature-Based Interventions Boost Self-Efficacy in YouthNature boosts confidence in teens and young adults

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Key Takeaway
Outdoor interventions show large effect on self-efficacy in youth, but evidence is limited by few studies.

A meta-analysis of six independent studies involving 1,356 participants examined the effect of outdoor and nature-based interventions on self-efficacy in adolescents and young adults. The analysis revealed a significant positive effect with a large effect size (Cohen's d = 0.80, 95% CI 0.31 to 1.30, p = 0.005).

These findings suggest that exposure to natural environments may enhance self-efficacy, a key psychological resource during critical developmental periods. Self-efficacy refers to an individual's belief in their ability to succeed in specific situations, which is crucial for academic, social, and emotional well-being.

However, the authors caution that the results are based on a small number of studies, and there were indications of potential small-study effects, which could inflate the observed effect size. Therefore, while promising, these findings should be interpreted with caution.

Further research with larger, more robust study designs is needed to confirm these effects and explore underlying mechanisms. Clinicians may consider incorporating nature-based activities as a complementary approach to support self-efficacy in youth, but should not rely solely on this evidence.

Feeling stuck or unsure of yourself? A walk in the woods might help more than you think. A new analysis of six studies involving 1,356 adolescents and young adults found that outdoor and nature-based interventions had a significant positive effect on self-efficacy, the belief in your ability to succeed.

The effect was large, with a Cohen's d of 0.80. That means the average person in the nature group scored 0.8 standard deviations higher on self-efficacy measures than those who didn't get the nature intervention. The results were statistically significant (p = 0.005).

But here's the honest truth: this analysis is based on only six studies, and there are hints that smaller studies may have inflated the results. So while the findings are promising, they're not the final word.

Still, for parents, teachers, or anyone working with young people, this suggests that getting outside could be a simple, low-cost way to help build confidence during a critical time of life.

What this means for you:
Nature time may boost self-efficacy in teens and young adults, but more research is needed.

Common questions

What is self-efficacy?

Self-efficacy is your belief in your ability to succeed in specific situations or accomplish a task. It's like confidence in your own skills. The study found that outdoor activities helped boost this belief in teens and young adults.

How strong is the evidence that nature helps?

The analysis found a large positive effect, but it's based on only six studies. There are also signs that smaller studies might have made the effect look bigger than it really is. So the evidence is promising but not conclusive.

Who was included in the study?

The analysis looked at 1,356 adolescents and young adults across six independent studies. The exact ages and settings weren't reported, so it's not clear if the results apply to all young people.

Should I encourage my teen to spend more time outdoors?

The study suggests outdoor activities may help with self-efficacy, but it's not a guarantee. There were no reported risks or side effects. If you're considering this for your teen, talk to their doctor for personalized advice.

Study Details

Study typeMeta analysis
EvidenceLevel 1
PublishedJul 2026
View Original Abstract ↓
IntroductionSelf-efficacy plays a critical role in motivation, emotional regulation, and adaptive functioning, particularly during adolescence and young adulthood. Outdoor and nature-based interventions have been proposed as a promising approach to enhance self-efficacy. However, prior meta-analyses have been limited by the assumption of independent effect sizes, which may not adequately account for multiple outcomes reported within the same study. This study aimed to systematically evaluate the effects of outdoor and nature-based interventions on self-efficacy among adolescents and young adults using a three-level meta-analytic approach.MethodsA systematic literature search was conducted in PubMed, Web of Science, Embase, Cochrane Library, SPORTDiscus, and PsycArticles for studies published up to December 8, 2025. Standardized mean differences (Cohen’s d) were calculated using post-intervention means and standard deviations from the intervention and comparison groups. A three-level random-effects meta-analysis was performed to account for statistical dependence among multiple effect sizes. Meta-regression analyses were conducted to examine the potential moderating effects of intervention duration and population type.ResultsSix independent studies comprising 10 effect sizes were included, involving 1,356 participants aged 12–24 years. The three-level meta-analysis demonstrated a significant positive effect of outdoor and nature-based interventions on self-efficacy (d = 0.80, 95% CI 0.31 to 1.30, p = 0.005). Meta-regression analyses indicated no significant moderating effects of intervention duration or population type.ConclusionOutdoor and nature-based interventions were associated with improvements in self-efficacy among adolescents and young adults. No significant moderating effects were observed for age group or intervention duration. These findings suggest that outdoor and nature-based interventions may represent a promising approach for supporting self-efficacy during critical developmental periods. However, the findings should be interpreted cautiously given the small number of available studies and indications of potential small-study effects.Systematic review registrationhttps://www.crd.york.ac.uk/prospero/, identifier CRD420261293707.
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