Making EGMs Accountable: Can an Informative and Dynamic Interface Help Players Self-regulate?

Gambling Harm-Minimisation Tools and Their Impact on Gambling Behaviour: A Review of the Empirical Evidence

The harms accompanying disordered gambling are well documented. Additionally, there is growing attention to the harms that arise from people who gamble heavily but do not meet the criteria for a gambling disorder. Accordingly, there has been an increasing interest in the effectiveness of consumer protection tools for consumers of gambling products. Subsequently, there is a need to properly evaluate the evidence for their effectiveness. This review aimed to conduct a narrative synthesis of empirical studies to identify gaps, weaknesses, and strengths in the existing evidence for the effectiveness of harm minimisation tools available to people who gamble. This review includes studies published between January 2015 to July 2022 and comprises 55 peer-reviewed studies for final synthesis. Findings reveal that while more research is needed to examine the effectiveness of active and passive consumer protection tools, uptake of tools is low in part because users view them as tools for individuals already experiencing gambling harm as opposed to protective tools for all users. Research is needed to determine effective ways of communicating the value of consumer protection tools for gambling.

Cash outs during in-play sports betting: Who, why, and what it reveals

Cashing out is a popular feature of modern 'in-play' sports betting that allows sports bettors to withdraw a bet before the sporting event on which the bet was placed is finalized. Previous studies have shown that use of the cash out feature is positively related to problem gambling symptomatology. However, little is known about demographic and psychological characteristics of in-play sports bettors who use the cash out feature, or their motivations for use. To fill this knowledge gap, we recruited 224 adults (18 + years) from Ontario who engaged in in-play sports betting in the past three months. Participants completed self-report measures of psychological and gambling-related variables. Participants also provided qualitative responses for their motivations for using the cash out feature. Approximately half (51.8 %) of the participants reported using the cash out feature. No statistically significant demographic differences were found between participants who used and did not use the cash out feature. Participants who used the feature (compared to those who did not) reported higher problematic alcohol and cannabis use, feelings of depression, anxiety, and stress, and were motivated to gamble to make money. The primary reasons for cashing out were to access money immediately, to cut losses, and because cashing out felt like a less risky option. The current findings shed light on underlying psychological vulnerabilities associated with individuals who use the cash out feature, which can inform initiatives to reduce the harms associated with this popular feature of sports betting.

House-edge information and a volatility warning lead to reduced gambling expenditure: Potential improvements to return-to-player percentages

Cost-of-play information is one public health intervention recommended to help reduce gambling-related harm. In the UK, this information is given on electronic gambling machines in a format known as the "return-to-player", e.g., "This game has an average percentage payout of 90%." However, previous evidence suggests that this information could be improved by equivalently restating it in terms of the "house-edge", e.g., "This game keeps 10% of all money bet on average." A "volatility warning," stating that this information applies only in the statistical long-run, has also been recommended to help gamblers understand cost-of-play information. However, there is no evidence comparing these information provisions' effect on gamblers' behavior. An experiment tested US gamblers'(N = 2433) incentivized behavior in an online slot machine, where this information was manipulated between-participants along with a counter showing the total amount bet. Preregistered analyses showed that participants gambled significantly less when house-edge information or a volatility warning were shown compared to standard return-to-player information, with no effect of the total amount bet counter, and no significant interaction effects. However, these significant findings had small effect sizes, suggesting that a public health approach to gambling should not rely on informational provisions only. Subject to supportive evidence from more ecologically-valid designs such as field studies, these results suggest that improved cost-of-play information could lead to reduced rates of gambling expenditure and therefore benefit a public health approach to gambling.

A speed-of-play limit reduces gambling expenditure in an online roulette game: Results of an online experiment

UK online casino games are presently not subject to any limitations on speed-of-play or stakes. One recent policy proposal is to ensure that no online casino game can be played faster than its in-person equivalent. Another policy proposal is to limit the maximum stakes on online casino games to £2, to match the current stake limit on electronic gambling machines. This research experimentally investigated the speed-of-play proposal subject to a £2 stake limit, in an online experiment using incentivized payouts based on £4 endowments and a commercial online roulette game, which was slowed-down in one condition to enforce a speed-of-play limit of one spin every 60 seconds. UK residents, aged 18 years and over and with experience in playing online roulette (N = 1,002), were recruited from an online crowdsourcing panel. In the slowed-down condition there was a credible reduction in the amount gambled. This effect occurred via a credible reduction in the mean number of spins which outweighed any potential increases in bet sizes. Speed-of-play limits may be effective in reducing gambling expenditure for online roulette.

Responsible product design to mitigate excessive gambling: A scoping review and z-curve analysis of replicability

Objectives

Systematic mapping of evaluations of tools and interventions that are intended to mitigate risks for gambling harm.

Design

Scoping Review and z-curve analysis (which estimates the average replicability of a body of literature).

Search strategy

We searched 7 databases. We also examined reference lists of included studies, as well as papers that cited included studies. Included studies described a quantitative empirical assessment of a game-based (i.e., intrinsic to a specific gambling product) structural feature, user-directed tool, or regulatory initiative to promote responsible gambling. At least two research assistants independently performed screening and extracted study characteristics (e.g., study design and sample size). One author extracted statistics for the z-curve analysis.

Results

86 studies met inclusion criteria. No tools or interventions had unambiguous evidence of efficacy, but some show promise, such as within-session breaks in play. Pre-registration of research hypotheses, methods, and analytic plans was absent until 2019, reflecting a recent embracement of open science practices. Published studies also inconsistently reported effect sizes and power analyses. The results of z-curve provide some evidence of publication bias, and suggest that the replicability of the responsible product design literature is uncertain but could be low.

Conclusion

Greater transparency and precision are paramount to improving the evidence base for responsible product design to mitigate gambling-related harm.

The Effects of Responsible Gambling Pop-Up Messages on Gambling Behaviors and Cognitions: A Systematic Review and Meta-Analysis

Pop-up messages utilized by gambling operators are normally presented to gamblers during gambling sessions in order to prevent excessive gambling and/or to help in the appraisal of maladaptive gambling cognitions. However, the effect of such messages on gambling behavior and gambling cognitions has not previously been synthesized quantitatively. Consequently, a meta-analysis estimating the efficacy of pop-up messages on gambling behavior and cognitions was conducted. A systematic literature search with no time constraints was performed on Web of Science, PsychInfo, Medline, PsychNET, and the Cochrane Library. Search terms included "gambling," "pop-up," "reminder," "warning message," and "dynamic message." Studies based on randomized controlled trials, quasi-experimental designs and pre-post studies reporting both pre- and post-pop-up data were included. Two authors independently extracted data using pre-defined fields including quality assessment. A total of 18 studies were included and data were synthesized using a random effects model estimating Hedges' g. The effects of pop-ups were g = 0.413 for cognitive measures (95% CI = 0.115-0.707) and g = 0.505 for behavioral measures (95% CI = 0.256-0.746). For both outcomes there was significant between-study heterogeneity which could not be explained by setting (laboratory vs. naturalistic) or sample (gambler vs. non-gamblers). It is concluded that pop-up messages provide moderate effects on gambling behavior and cognitions in the short-term and that such messages play an important role in the gambling operators' portfolio of responsible gambling tools.