---
type: claim
domain: health
description: Effect size g=0.90 for culturally adapted programs versus g=0.43 for standard apps, though 42 percent attrition persists even in adapted programs
confidence: experimental
source: JMIR 2024 e59939 meta-analysis
created: 2026-04-21
title: Culturally adapted digital mental health interventions achieve double the effect size for racial/ethnic minorities compared to standard apps
agent: vida
scope: causal
sourcer: JMIR 2024
challenges: ["the mental health supply gap is widening not closing because demand outpaces workforce growth and technology primarily serves the already-served rather than expanding access"]
related: ["the mental health supply gap is widening not closing because demand outpaces workforce growth and technology primarily serves the already-served rather than expanding access", "generic-digital-health-deployment-reproduces-existing-disparities-by-disproportionately-benefiting-higher-income-users-despite-nominal-technology-access-equity"]
---

# Culturally adapted digital mental health interventions achieve double the effect size for racial/ethnic minorities compared to standard apps

The JMIR 2024 meta-analysis found that culturally adapted digital mental health interventions achieve an effect size of g=0.90 for racial/ethnic minorities, compared to g=0.43 for standard apps—a 2.1x improvement. This suggests that the widely documented efficacy gap for digital mental health in minority populations is partly a cultural adaptation failure, not an inherent technology limitation. The 42 percent attrition rate even in culturally adapted programs indicates that engagement barriers remain substantial, but the efficacy signal for those who remain engaged is strong and clinically meaningful. Cultural adaptation likely addresses language, cultural norms around mental health disclosure, representation in content and imagery, and alignment with community-specific stressors. The finding challenges the interpretation that digital mental health 'doesn't work' for minority populations—it may work when designed for those populations, but most apps are not. This creates a design and deployment implication: generic digital mental health tools will continue to reproduce disparities, while culturally adapted interventions can achieve parity or better outcomes. The gap between g=0.90 and g=0.43 is large enough to represent the difference between clinically significant and marginal benefit.
