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Academic ResearchMonths of workPortuguês

Carrot Rewards. Step Together Challenges (STCs)

academic-research · Canada (BC, Ontario, Newfoundland & Labrador) · 2018-2019 study; published Mitchell et al. 2020 IJBNPA

Federally-backed (Public Health Agency of Canada + provinces) loyalty-points health app that added 'Step Together Challenges'. Teams of partnered users earn shared incentives only when both partners collectively hit individual daily step goals 10 times in 7 days. 24-week matched case-control study (n=20,254 STC users vs ~13,150 controls) found STC group gained +537 mean daily steps over controls (~3,759 extra steps/week).

Areas compete

Users registered with postal code; province-level Step Together leaderboards visible by region. Provincial 'health move' campaigns pitched BC vs Ontario vs NL communities against each other in collective step counts. Each provincial cohort competed via aggregate stats published in-app and via media.

People support each other

Pairwise team mechanic. Your reward is gated on your PARTNER's goal completion. You literally cannot win solo. This forces nudging, accountability check-ins and mutual-aid messaging inside the pair. The paper documents this 'cooperative-competition' hybrid as the key behavioral lever.

Why this is worth knowing

Rare published RCT-style evidence (~3,759 extra steps/week!) that pairing inter-area competition WITH forced intra-pair collaboration outperforms either alone. The 'partner-gated incentive' is a clever, copyable design pattern for BelongHub. Defunct as Carrot but the mechanic is intact in Optimity.

Statusdefunct (relaunched 2020 by Optimity under new model)
Year2018-2019 study; published Mitchell et al. 2020 IJBNPA
WhereCanada (BC, Ontario, Newfoundland & Labrador)
Effort to start a local versionMonths of work
LanguagePortuguês
Verificationhigh confidence
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