Trial reportJournal of gambling studies2026
Peer Effects, Warning Messages, and Gambling Behavior: Evidence from a Lab-in-the-field Experiment.
Trial report in Journal of gambling studies, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
1 author.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The rapid rate of technological advancement has led to a proliferation of online gambling applications in Africa. This has resulted in an unprecedented rise in problem gambling across sub-Saharan Africa. In addition, the rapid growth of the gambling industry has outpaced laws and regulations aimed at consumer protection, limiting the scope of problem gambling interventions. Using a sample of 905 gamblers from Kenya, this study investigated the impact of peer effects and warning messages on gambling behavior using a lab-in-the-field randomized controlled trial. This study found no evidence that peer effects had an impact on gambling behavior. However, gambling warning messages reduced the total amount wagered by 8% and the number of betting rounds played by 4%. Furthermore, the peer effects and warning message condition increased the number of betting rounds played by 13%. Peer interaction likely caused riskier decisions and compulsive gambling, which could have undermined the effectiveness of the warning message. In conclusion, while warning messages offer a potential strategy for minimizing gambling-related harm, and messaging relating to the effects of peer interaction is likely to increase their effectiveness.
Indexed as
Identifiers
41186670What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.