ORCID Profile
0000-0002-9754-9790
Current Organisations
Harvard Medical School
,
Cambridge Health Alliance
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Publisher: Center for Open Science
Date: 23-11-2021
Abstract: The replication crisis has stimulated researchers around the world to adopt open science research practices intended to reduce publication bias and improve research quality. Open science practices include study pre-registration, open data, open publication, and avoiding methods that can lead to publication bias and low replication rates. Although gambling studies uses similar research methods to behavioral research fields that have struggled with replication, we know little about the uptake of open science research practices in gambling-focused research. We conducted a scoping review of 500 recent (1/1/2016 – 12/1/2019) studies focused on gambling and problem gambling to examine the use of open science and transparent research practices. Our results showed that a small percentage of studies used most practices: whereas 54.6% (95% CI: [50.2, 58.9]) of studies used at least one of nine open science practices, each practice’s prevalence was: 1.6% for pre-registration (95% CI:[0.8, 3.1]), 3.2% for open data (95% CI:[2.0, 5.1]), 0% for open notebook, 35.2% for open access (95% CI:[31.1, 39.5]), 7.8% for open materials (95% CI:[5.8, 10.5]), 1.4% for open code (95% CI:[0.7, 2.9]), and 15.0% for preprint posting (95% CI:[12.1, 18.4]). In all, 6.4% (95% CI:[4.6, 8.9]) used a power analysis and 2.4% (95% CI:[1.4, 4.2]) of the studies were replication studies. Exploratory analyses showed that studies that used any open science practice, and open access in particular, had higher citation counts. We suggest several practical ways to enhance the uptake of open science principles and practices both within gambling studies and in science more broadly.
Publisher: Center for Open Science
Date: 16-07-2021
Abstract: Study preregistration is one of several “open science” practices (e.g., open data, preprints) that researchers use to improve the transparency and rigour of their research. As more researchers adopt preregistration as a regular research practice, examining the nature and content of preregistrations can help identify strengths and weaknesses of current practices. The value of preregistration, in part, relates to the specificity of the study plan and the extent to which investigators adhere to this plan. We identified 53 preregistrations from the gambling studies field meeting our predefined eligibility criteria and scored their level of specificity using a 23-item protocol developed to measure the extent to which a clear and exhaustive preregistration plan restricts various researcher degrees of freedom (RDoF i.e., the many methodological choices available to researchers when collecting and analysing data, and when reporting their findings). We also scored studies on a 32-item protocol that measured adherence to the preregistered plan in the study manuscript. We found that gambling preregistrations had low specificity levels on most RDoF. However, a comparison with a s le of cross-disciplinary preregistrations (N = 52 Bakker et al., 2020) indicated that gambling preregistrations scored higher on 12 (of 29) items. Thirteen (65%) of the 20 associated published articles or preprints deviated from the protocol without declaring as much (the mean number of undeclared deviations per article was 2.25, SD = 2.34). Overall, while we found improvements in specificity and adherence over time (2017-2020), our findings suggest the purported benefits of preregistration—including increasing transparency and reducing RDoF—are not fully achieved by current practices. Using our findings, we provide 10 practical recommendations that can be used to support and refine preregistration practices.
Publisher: American Psychological Association (APA)
Date: 12-2021
DOI: 10.1037/ADB0000715
Abstract: Early big wins might have a psychological impact upon gamblers that increases their likelihood of intemperate gambling however, there has been a paucity of empirical research examining this effect using actual gambling data. We assessed the effects of daily fantasy sports (DFS) big wins on subsequent play by analyzing a prospective dataset from a major DFS provider (N = 34,596 DFS subscribers) representing over 18 million entries into DFS contests. We found that experiencing a big win in DFS is associated with subsequently increased DFS engagement (i.e., increased contest entry fees and contest entries) and losses (i.e., higher net loss). However, the effect of a big win on engagement and losses decays over time. Whereas theorists have highlighted the effects of early big wins, our analyses indicated that later big wins had a relatively stronger effect on DFS engagement. Sensitivity analyses confirmed the robustness of most results, with somewhat greater support for big wins' effects on engagement metrics than losses. Our results collectively indicate the existence of a big win effect in DFS. For some players, big wins might instill unrealistic expectations about future probabilities of winning and lead to increased-and potentially excessive-engagement. Explanations from cognitive psychology (e.g., the illusion of control) and behavioral psychology (e.g., operant conditioning) might help to explain the big win effect. (PsycInfo Database Record (c) 2021 APA, all rights reserved).
Publisher: Elsevier BV
Date: 05-2023
Publisher: Springer Science and Business Media LLC
Date: 09-06-2022
DOI: 10.1007/S10899-022-10120-Y
Abstract: The replication crisis has stimulated researchers around the world to adopt open science research practices intended to reduce publication bias and improve research quality. Open science practices include study pre-registration, open data, open access, and avoiding methods that can lead to publication bias and low replication rates. Although gambling studies uses similar research methods as behavioral research fields that have struggled with replication, we know little about the uptake of open science research practices in gambling-focused research. We conducted a scoping review of 500 recent (1/1/2016–12/1/2019) studies focused on gambling and problem gambling to examine the use of open science and transparent research practices. Our results showed that a small percentage of studies used most practices: whereas 54.6% (95% CI: [50.2, 58.9]) of studies used at least one of nine open science practices, each practice’s prevalence was: 1.6% for pre-registration (95% CI: [0.8, 3.1]), 3.2% for open data (95% CI: [2.0, 5.1]), 0% for open notebook, 35.2% for open access (95% CI: [31.1, 39.5]), 7.8% for open materials (95% CI: [5.8, 10.5]), 1.4% for open code (95% CI: [0.7, 2.9]), and 15.0% for preprint posting (95% CI: [12.1, 18.4]). In all, 6.4% (95% CI: [4.6, 8.9]) of the studies included a power analysis and 2.4% (95% CI: [1.4, 4.2]) were replication studies. Exploratory analyses showed that studies that used any open science practice, and open access in particular, had higher citation counts. We suggest several practical ways to enhance the uptake of open science principles and practices both within gambling studies and in science more generally.
No related grants have been discovered for Eric Louderback.