Digital VPC interventions produce goal-consistent personality changes, with self-reported effects in the large range and smaller observer-reported effects¶

Claim · All claims
Evidence · 1 study · review r2 · q3
Currency · newest study 2026 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? In a three-month RCT of the PEACH smartphone app (N = 1,523), participants showed greater goal-consistent personality changes than a waitlist control group, per self-reports and, to a lesser extent, observer-reports. → Mathias Allemand 2026

Evidence¶

Mathias Allemand 2026¶

Mathias Allemand, Brent W. Roberts, Ulrich Trautwein. (2026). Integrating Insights from Volitional Personality Change Interventions to Improve Self-Regulated Learning. Educational Psychology Review. https://doi.org/10.1007/s10648-026-10127-6

q3 · i? · review · r2

The review reports, citing Stieger et al. (2021), a three-month RCT (N = 1,523; M age = 25) of twice-daily chatbot-based microinterventions. "Effect sizes for self-reported changes were in the large range according to educational intervention standards, whereas observer-reported effects were small to medium in magnitude."

"Compared to a waitlist control group, participants exhibited greater, goal-consistent personality changes, supported by self-reports and, to a lesser extent, observer-reports (the latter detecting increases but not decreases)."

Discussion¶

Learner Variables¶

• Personality Traits — outcome: instruction changes it

Related Claims¶

• Personality changes achieved through digital VPC interventions persist, remaining sustained or amplified at three-month and one-year follow-ups — related
• Digital coaching significantly increased trait conscientiousness, with effects stable one year after the intervention ended — a narrower finding that bears on this claim
• Digital coaching increased the organization and productiveness facets of conscientiousness but not responsibility, with no observer-reported facet changes — related