Background and Aims: This study evaluated whether a preventive intervention program for problem gambling would increase managers’ inclination to act when concerned about gambling in the workplace. Design: Cluster- randomized controlled trial. Ten workplaces were randomized to either intervention or control condition. Participants: At the 12-month endpoint, there were n = 136 managers and n = 1594 subordinates in the intervention group, and n = 137 managers and n = 1150 subordinates in the waitlist group. Intervention: The intervention consisted of (1) six hours of skill-development training for managers regarding gambling, problem gambling, gaming, and harmful use of psychoactive drugs, and (2) six to eight hours of assistance in developing or improving workplace gambling policy. Measurements: The primary outcome was the managers’ self-rated (on a 1 to 10 scale) inclination to act when concerned about an employee’s problem gambling 12 months after baseline. Findings: The between-group difference in the managers’ inclination for the full intervention group (M = 8) and the control group (M = 7.4) was not significant at the 12-month follow-up, but it was when only including managers who attended the skill- development training (M = 8.2), d = 0.31, p = .04. Conclusion: A workplace prevention program aimed to increase managers’ inclination to act when they are concerned regarding an employee’s gambling resulted in statistically significant changes for those who attended training, but not for the whole intervention group when non-attendees were included.

Introduction: Online gambling, popular among both problem and recreational gamblers, simultaneously entails both heightened addiction risks as well as unique opportunities for prevention and intervention. There is a need to bridge the growing literature on learning and extinction mechanisms of gambling behavior, with account tracking studies using real-life gambling data. In this study, we describe the development and validation of the Frescati Online Research Casino (FORC): a simulated online casino where games, visual themes, outcome sizes, probabilities, and other variables of interest can be experimentally manipulated to conduct behavioral analytic studies and evaluate the efficacy of responsible gambling tools.

Methods: FORC features an initial survey for self-reporting of gambling and gambling problems, along with several games resembling regular real-life casino games, designed to allow Pavlovian and instrumental learning. FORC was developed with maximum flexibility in mind, allowing detailed experiment specification by setting parameters using an online interface, including the display of messages. To allow convenient and rapid data collection from diverse samples, FORC is independently hosted yet integrated with the popular crowdsourcing platform Amazon Mechanical Turk through a reimbursement key mechanism. To validate the survey data quality and game mechanics of FORC, n = 101 participants were recruited, who answered an questionnaire on gambling habits and problems, then played both slot machine and card-draw type games. Questionnaire and trial-by-trial behavioral data were analyzed using standard psychometric tests, and outcome distribution modeling.

Results: The expected associations among variables in the introductory questionnaire were found along with good psychometric properties, suggestive of good quality data. Only 6% of participants provided seemingly poor behavioral data. Game mechanics worked as intended: gambling outcomes showed the expected pattern of random sampling with replacement and were normally distributed around the set percentages, while balances developed according to the set return to player rate.

Conclusions: FORC appears to be a valid paradigm for simulating online gambling and for collecting survey and behavioral data, offering a valuable compromise between stringent experimental paradigms with lower external validity, and real-world gambling account tracking data with lower internal validity.

Problem gambling is considered a public health problem in many countries and is associated with serious financial and health-related harms for both problem gamblers and significant others. It is possible to create gambling environments that would promote sustainable gambling behaviors and prevent excessive gambling. However, research on the effectiveness of tools for responsible provision of gambling is scarce and the quality of the research is low. Also, there exists a conflict of interest between making a profit when providing gambling and protecting vulnerable customers. The general aim of the project was to study the effects, usability and gamblers’ experiences of tools for responsible provision of online gambling. Study I evaluated the effects of a prompt to set voluntary deposit-limit of optional size among 4,328 customers of an online gambling platform. During the data collection period, all customers from Finland registering an account on the gambling platform were randomized into being prompted to set a deposit-limit either 1) at-registration, 2) before their first deposit, 3) after their first deposit or 4) to an unprompted control group. Gambling intensity, measured with aggregated net loss, was tracked during 90 days after registration. No differences in gambling intensity between the intervention and control groups were found neither on the whole-group level (B (95% CI) =-0.080 (-0.229-0.069), p=.291), nor in the subgroup of the most involved gamblers (B (95% CI) =0.042(-0.359-0.442), p=.838). Study II aimed at predicting gaming freeze (as a proxy parameter for problem gambling) in online gamblers. For the sample of N=2,618 (N=1,309 freezers), a total of 105 predictors were created based on the data tracked by the gambling platform. The analysis was carried out using the machine learning method Random Forest. The predictive accuracy of the model applied to the dataset was 0.615, with a specificity of 0.686 and a sensitivity of 0.543. Study III aimed at investigating non-problem gamblers’ experiences of protective measures. A total of N=10,200 active customers of an online gambling platform were asked to rate their previous experiences of protective tools, their inclination to abandon a gambling service due to perceived overexposure to protective measures and answer questions on their symptoms of problem gambling. N=1,223 responded to the questionnaire, with the majority of the sample being moderate-risk gamblers (38.5%), followed by low-risk gamblers (26.8%), non-problem gamblers (18.9%) and problem gamblers (15.8%). In general, non-problem gamblers were not more disturbed by protective measures than other categories of gamblers. More problem gamblers have previously abandoned a gambling service due to perceived overexposure to protective measures compared to non-problem gamblers (OR(95% CI)= 7.17(3.61-14.23), p<.001). In conclusion, a prompt to set a voluntary deposit-limit of optional size did not appear to be effective in decreasing gambling intensity in online gamblers, indicating the need of evaluating alternative designs. Predicting gaming freezes in the current project resulted in a low accuracy, indicating that gaming freeze is not suitable as a proxy measurement for problem gambling and suggesting the need for collecting subjective data on symptoms of problem gambling. The results of Study III suggest that protective measures can be tested and implemented without the risk of disturbing recreational gamblers.

Pre-commitment tools – allowing users of gambling services to pre-set a limit for how much money they may spend – are relatively common. However, there exist no clear evidence of their effectiveness in preventing gamblers from spending more money than they otherwise planned. The aim of the study was to compare gambling intensity between users of an online gambling service prompted to set a deposit limit and non-prompted customers, both in the whole sample and among most active users based on the total number of gambling days. Prospective customers of a publicly governed gambling operator from Finland were randomized to receive a prompt to set a voluntary deposit limit of optional size either (1) at registration, (2) before or (3) after their first deposit, or (4) to an unprompted control condition. Data on customers from Finland with online slots as a preferred gambling category (N = 4328) were tracked in the platform for 90 days starting at account registration, gambling intensity being measured with aggregated net loss. The intervention groups did not differ from each other in either proportion of participants with positive net loss or size of positive net loss. The pooled intervention group did not differ from the control group regarding proportion of gamblers with positive net loss (OR = 1.0; p = 0.921) or size of net loss (B = -0.1; p = 0.291). The intervention groups had higher rates of limit-setters compared to the control condition (ORat-registration/pre-deposit/post-deposit = 11.9/9.2/4.1). Customers who have increased/removed a previously set deposit limit had higher net loss than the limit-setters who have not increased/removed their limit (Bat-registration/pre-deposit/post-deposit/control = 0.7/0.6/1.0/1.3), and unprompted limit-setters lost more than unprompted non-setters (B = 1.0). Prompting online gamblers to set a voluntary deposit limit of optional size did not affect subsequent net loss compared to unprompted customers, motivating design and evaluation of alternative pre-commitment tools. Setting a deposit limit without a prompt or increasing/removing a previously set limit may be a marker of gambling problems and may be used to identify customers in need of help.

Context: Pathological gambling is recognized as a public health issue in a many countries. Consequently, helping individuals control their gambling behaviors is critical. One strategy is setting a pre-committed limit for how much money one can lose, deposit or win. The aim of the study was to compare gambling intensity between online gamblers prompted to set a deposit limit and non-prompted customers.

Methods: All customers of the gambling service having registered an account during the study recruitment period were included. Gambling intensity was measured with aggregated net loss, with proportions of limit-setters, sum of deposits and number of gambling days used as secondary outcomes.

Intervention: A total of 4328 customers of a gambling operator from Finland were randomized to receive a prompt to set a voluntary deposit limit of optional size either 1) at registration, 2) before or 3) after their first deposit, or 4) to an unprompted control condition.

Results: The intervention groups did not differ in either proportion of participants with positive net loss or size of positive net loss. The pooled intervention group did not differ from the control group regarding proportion of gamblers with positive net loss or size of net loss. The intervention groups had higher rates of limit-setters and net loss was highest among participants who had increased/removed a deposit-limit. 

Conclusions: Prompting online gamblers to set a voluntary deposit limit of optional size did not affect subsequent net loss.

Introduction: Responsible gambling (RG) tools, aiming at helping gamblers to avoid gambling-related harms, are common in online gambling platforms. Gambling industry, policy makers, and researchers have warned that RG tools can potentially disturb recreational gamblers, channeling them to less protective operators. No evidence exists to support these concerns, and they can hinder the development of effective RG tools. The current study aimed to investigate the recreational gamblers' experiences of RG tools.

Methods: A total of 10,200 active customers of an online gambling service were invited to complete an online survey and rate their overall reactions, attitudes, disturbance and irritation towards RG tools, as well as their inclination to abandon a gambling service due to overexposure to RG tools. N = 1223 surveys were completed.

Results: Non-problem gamblers had positive experiences of RG tools. Moderate-risk gamblers had more positive overall reaction and less irritation to previous experiences of RG tools compared to non-problem gamblers. Problem gamblers had least positive attitudes, most disturbance and most irritation towards RG pictures. Non-problem gamblers had lowest rates of having abandoned a service because of perceived overexposure to RG tools (5.2% compared to 25.9% of problem gamblers), with a significant between-group difference (OR [95%CI] = 7.17 [3.61–14.23], p < .001).

Conclusions: Non-problem gamblers were not particularly disturbed by RG tools and were not at risk of abandoning online gambling services because of overexposure to RG tools. The study found no grounds for limiting the design and implementation of RG tools due to fears of disturbing recreational gamblers.

Workplace health promotion programs (WHPPs) refer to a set of health promotion and protection strategies implemented at a worksite and designed to meet the health and safety needs of employees. One important question for WHPPs is how middle management experience their participation in a WHPP. This study aims to explore this question further by applying a qualitative content analysis to interviews with thirteen managers and ten human resource officers participating in a WHPP focusing on problem gambling. The WHPP consisted of two components: policy implementation and skills-development training. The participants were interviewed about their experiences of these two components and the implementation process. The qualitative content analysis resulted in six themes: (1) Expectations of the skills-development training, (2) Experiences of and prior beliefs about problem gambling, (3) A good foundation, (4) The difficult conversation, (5) Appreciated aspects of the training sessions, and (6) Remaining obstacles. The results suggest that the presentation of cases, facts, and general knowledge was appreciated by most participants. However, participants also expressed that they would benefit from tailored interventions, more support in the policy implementation process, and following up on the results.

Aims: To compare gambling intensity between users of an online gambling service prompted to set a deposit limit and non-prompted customers, in the whole sample and among most active users based on total number of gambling days. Design: A randomized controlled trial with three prompted (N=1098/1110/1055) and one unprompted control condition (N=1065) and gambling activity of each participant followed for 90 days starting at account registration. Setting. A publicly governed online gambling operator from Finland. Interventions: The prompted participants received a one-time prompt to set a voluntary deposit limit of optional size either 1) at-registration, 2) before or 3) after they made their first deposit. Participants in the control condition were not prompted. Participants: All Finnish customers of the gambling service having registered an account during the study recruitment period with online slots as preferred gambling category during the 90 days following the registration. Measures: Gambling intensity was measured with aggregated net loss (NL), with proportions of limit-setters, sum of deposits and number of gambling days used as secondary outcomes. Findings: In the whole sample, the three intervention groups did not differ in either proportion of participants with positive NL (BF10prop=0.007) or size of positive net loss (BF10size=0.016), the results being similar for the most involved gamblers (BF10prop=0.030; BF10size=0.082). The pooled intervention group did not differ from the control group regarding proportion of gamblers with positive NL (OR(95%CI)=0.991(0.836–1.176); p=.921) or size of NL (B(95%CI) =-0.080(-0.229-0.069); p=.291), the results applying to the most involved gamblers (proportion positive NL: OR(95%CI)=0.834(0.492-1.412), p =.498; NL size: B(95%CI)=0.042(-0.359-0.442), p =.838). The three intervention groups had higher rates of limit-setters and NL was highest among participants who have increased/removed a deposit-limit. Conclusion: Prompting users of an online gambling service to set a voluntary deposit limit of optional size did not affect subsequent NL compared to unprompted participants.

Introduction: Despite being considered a public health problem, no prevention programme for problem gambling in workplace settings has been scientifically evaluated. This study aims to fill a critical gap in the field of problem gambling by implementing and evaluating a large-scale prevention programme in organisations.

Methods and analysis: Ten organisations, with a total of n=549 managers and n=8572 employees, will be randomised to either receiving a prevention programme or to a waitlist control condition. Measurements will be collected at the baseline and 3, 12 and 24 months after intervention. The primary outcome of interest is the managers’ inclination to act when worried or suspicious about an employee’s problem gambling or other harmful use. Additional outcomes of interest include the Problem Gambling Severity Index and gambling habits in both managers and employees. Furthermore, qualitative analyses of the responses from semistructured interviews with managers will be performed.

Ethics and dissemination: This study has been approved by the regional ethics board of Stockholm, Sweden, and it will contribute to the body of knowledge concerning prevention of problem gambling. The findings will be published in peer-reviewed, open-access journals.

Trial registration number: NCT02925286; Pre-results.

Acceptance and Commitment Therapy (ACT) can be effective in treating anxiety disorders, yet there has been no study on Internet-delivered ACT for social anxiety disorder (SAD) and panic disorder (PD), nor any study investigating whether therapist guidance is superior to unguided self-help when supplemented with a smartphone application. In the current trial, n = 152 participants diagnosed with SAD and/or PD were randomized to therapist-guided or unguided treatment, or a waiting-list control group. Both treatment groups used an Internet-delivered ACT-based treatment program and a smartphone application. Outcome measures were self-rated general and social anxiety and panic symptoms. Treatment groups saw reduced general (d = 0.39) and social anxiety (d = 0.70), but not panic symptoms (d = 0.05) compared to the waiting-list group, yet no differences in outcomes were observed between guided and unguided interventions. We conclude that Internet-delivered ACT is appropriate for treating SAD and potentially PD. Smartphone applications may partially compensate for lack of therapist support.