scholarly journals Return Rates of Online Slot Machines in Trial Mode Influence Players’ Errors of Estimation

2020 ◽  
Vol 45 ◽  
Author(s):  
Daniel Lalande ◽  
Mathieu Emond ◽  
Emilie Bélanger
Keyword(s):  
Irrational Beliefs ◽  
Responsible Gambling ◽  
Slot Machine ◽  
Return Rate ◽  
Slot Machines ◽  
Online Gambling ◽  
Control Group ◽  
Return Rates ◽  
Before And After ◽  
The Impact

In the present study, we aimed to evaluate the impact of an exaggerated return rate on players’ errors of estimation and irrational beliefs. Conventional return rates for slot machines are set around 92%, whereas online gambling websites often use much higher return rates during demonstration (demo) play. Seventy college students were randomly assigned to play a virtual slot machine programmed to reflect a 92% return rate (control group) or a 180% return rate (experimental group). They completed self-reported measures of errors of estimation (e.g., chances of winning and losing) and irrational beliefs (e.g., having already won guarantees future wins) before and after playing a virtual slot machine for 10 min. Results from mixed 2 x 2 analyses of variance revealed statistically significant differences in errors of estimation (i.e., chances of winning, chances of winning the jackpot, chances of neither winning nor losing) between the experimental and control groups. Furthermore, participants estimated having less chance of losing during a slot machine session after exposure to the exaggerated return rate. Given the fact that many online gambling websites use similar exaggerated return rates during the demo period of their virtual slot machines, the present results suggest that this tactic may incite players to behave differently than they would otherwise during a gambling session. Implications for responsible gambling strategies are discussed.RésuméLa présente étude visait à évaluer l’impact d’un taux exagéré de retour sur les erreurs d’estimation et les croyances irrationnelles des joueurs. Les taux de retour conventionnels pour les machines à sous sont établis à environ 92%, tandis que les sites de jeux en ligne utilisent souvent des taux de retour beaucoup plus élevés dans les démonstrations de jeux. Soixante-dix étudiants universitaires ont été assignés au hasard à une machine à sous virtuelle programmée qui reflète un taux de retour de 92 % (groupe témoin) ou une autre affichant un taux de retour de 180 % (groupe expérimental). Ils ont complété des mesures auto-déclarées des erreurs d’estimation (p. ex., les chances de gagner et de perdre) et des croyances irrationnelles (p. ex., avoir déjà gagné garantit des gains futurs) avant et après avoir joué à une machine à sous virtuelle pendant 10 minutes. Les résultats d’analyses de la variance (mixte 2 x 2) ont révélé des différences statistiquement significatives dans les erreurs d’estimation (c’est-à-dire les chances de gagner, les chances de gagner le jackpot, les chances de ne pas gagner ni de perdre) entre le groupe expérimental et le groupe témoin. De plus, les participants ont estimé avoir moins de chances de perdre pendant une séance de machine à sous après avoir été exposés au taux de retour exagéré. Étant donné que de nombreux sites de jeux en ligne utilisent des taux de retour exagérés similaires pendant la démonstration de leurs machines à sous virtuelles, les résultats actuels suggèrent que cette tactique peut inciter les joueurs à se comporter différemment que pendant une séance de jeu avec une machine affichant un taux de retour conventionnel. On y aborde les conséquences pour les stratégies de jeu responsable.

The impact of a music education program on meta-musical awareness, logical-mathematical, and notational skills in preschoolers

2021 ◽  
pp. 025576142110272
Author(s):  
Oriana Incognito ◽  
Laura Scaccioni ◽  
Giuliana Pinto
Keyword(s):  
Music Education ◽  
Education Program ◽  
Cognitive Abilities ◽  
Musical Training ◽  
Control Group ◽  
Transfer Of Knowledge ◽  
General Domain ◽  
Music Program ◽  
Before And After ◽  
The Impact

A number of studies suggest a link between musical training and both specific and general cognitive abilities, but despite some positive results, there is disagreement about which abilities are improved. This study aims to investigate the effects of a music education program both on a domain-specific competence (meta-musical awareness), and on general domain competences, that is, cognitive abilities (logical-mathematical) and symbolic-linguistic abilities (notational). Twenty 4- to 6-year-old children participated in the research, divided into two groups (experimental and control) and the measures were administered at two different times, before and after a 6-month music program (for the experimental group) and after a sports training program (for the control group). Children performed meta-musical awareness tasks, logical-mathematical tasks, and emergent-alphabetization tasks. Non-parametric statistics show that a music program significantly improves the development of notational skills and meta-musical awareness while not the development of logical-mathematical skills. These results show that a musical program increases children’s meta-musical awareness, and their ability to acquire the notational ability involved in the invented writing of words and numbers. On the contrary, it does not affect the development of logical skills. The results are discussed in terms of transfer of knowledge processes and of specific versus general domain effects of a musical program.

scholarly journals The Use of Procalcitonin as a Sepsis Marker in a Community Hospital

2019 ◽  
Vol 3 (4) ◽  
pp. 545-552
Author(s):  
Nathalia De Oro ◽  
Maria E Gauthreaux ◽  
Julie Lamoureux ◽  
Joseph Scott
Keyword(s):  
Lactic Acid ◽  
Length Of Stay ◽  
Community Hospital ◽  
Unit Length ◽  
Hospital Setting ◽  
Control Group ◽  
Before And After ◽  
Quasi Experimental ◽  
Current Cutoff ◽  
The Impact

Abstract Background Procalcitonin (PCT) is a biomarker that shows good sensitivity and specificity in identifying septic patients. Methods This study investigated the diagnostic accuracy of PCT in a community hospital setting and how it compared to that of lactic acid. It explored the impact on patient care before and after PCT implementation regarding costs and length of stay. Two comparative groups were analyzed using an exploratory descriptive case–control study with data from a 19-month period after PCT implementation and a retrospective quasi-experimental study using a control group of emergency department patients diagnosed with sepsis using data before PCT implementation. Results Post-procalcitonin implementation samples included 165 cases and pre-procalcitonin implementation sample included 69 cases. From the 165 sepsis cases who had positive blood cultures, PCT had a sensitivity of 89.7%. In comparison, lactic acid's sensitivity at the current cutoff of 18.02 mg/dL (2.0 mmol/L) was 64.9%. There was a 32% decrease in median cost before and after PCT implementation, even with the length of stay remaining at 5 days in both time periods. Conclusions There was a significant decrease after the implementation of PCT in cost of hospitalization compared to costs before implementation. This cost is highly correlated with length of stay; neither the hospital nor the intensive care unit length of stay showed a difference with before and after implementation. There was a positive correlation between lactic acid and PCT values. PCT values had a higher predictive usefulness than the lactic acid values.

scholarly journals Regulatory Measures' Effect on Gambling Participation: Experiences From Norway

2021 ◽  
Vol 12 ◽  
Author(s):  
Jonny Engebø ◽  
Torbjørn Torsheim ◽  
Ståle Pallesen
Keyword(s):  
Slot Machine ◽  
Slot Machines ◽  
Online Gambling ◽  
Total Consumption ◽  
Interactive Games ◽  
Gambling Participation ◽  
Major Market ◽  
Regulatory Changes ◽  
Large Growth ◽  
Market Changes

The purpose of gambling regulation can be to ensure revenue for the public, to prevent crime and gambling problems. One regulatory measure involves restriction of what games can be offered in a market. In this study, the effects of two regulatory market changes are investigated: First, a restriction of availability when slot machines were banned from the Norwegian market in 2007, and second the introduction of regulated online interactive games to the same market in 2014. Data collected from the general population in the period from 2005 through 2018, comprising 2,000 respondents every year, are used to investigate how participation in gambling changed over time. The respondents were asked if they took part in various games or lotteries. Logistic regression analyses were used to predict the proportion participating in five groups of games and if changes in participation coincided with major market changes. The first change was associated with a reduction in gambling on slot machines as well as a reduction in gambling participation overall. Following the slot machine ban, results show an increase in women participating in games offered in land-based bingo premises. A general increase in gambling on foreign websites was also seen, albeit much smaller than the reduction in slot machine gambling. The increases can partly be explained as substitution of one type of gambling with another. New regulated online interactive games were introduced in 2014. Despite the relatively large growth of such games internationally, Norway included, increased online gambling in general and an increased marketing of foreign gambling websites, the participation on foreign websites seemed stable. However, the overall participation in online interactive games increased. The introduction of the regulated alternative seems to have had a channelizing effect. Overall, the changes in gambling participation coinciding with two major regulatory changes can be explained by transformations of physical and social availability, and in terms of mechanisms outlined by the model of total consumption.

scholarly journals Controlled Study of the Impact of a Virtual Program to Reduce Stigma Among University Students Toward People With Mental Disorders

2021 ◽  
Vol 12 ◽  
Author(s):  
Matías E. Rodríguez-Rivas ◽  
Adolfo J. Cangas ◽  
Daniela Fuentes-Olavarría
Keyword(s):  
Mental Disorders ◽  
University Students ◽  
Intervention Group ◽  
Project Based Learning ◽  
Controlled Study ◽  
Control Group ◽  
Global Score ◽  
Stigma Reduction ◽  
Before And After ◽  
The Impact

Stigma toward mental disorders is one of today's most pressing global issues. The Covid-19 pandemic has exacerbated the barriers to social inclusion faced by individuals with mental disorders. Concurrently, stigma reduction interventions, especially those aimed at university students, have been more difficult to implement given social distancing and campus closures. As a result, alternative delivery for programs contributing to stigma reduction is required, such as online implementation. This paper reports the results of a controlled study focused on an online multi-component program on reducing stigma toward mental illness that included project-based learning, clinical simulations with standardized patients and E-Contact with real patients. A total of 40 undergraduate students from the Universidad del Desarrollo in Santiago, Chile, participated in the study. They were randomly divided between an intervention and control group. The intervention group participated in the online multi-component program, while the control group participated in an online educational program on cardiovascular health. We assessed the impact of the program by using the validated Spanish-language versions of the Attribution Questionnaire AQ-27 and the Questionnaire on Student Attitudes toward Schizophrenia with both groups, before and after the intervention. In addition, an ad hoc Likert scale ranging from 0 to 5 was used with the intervention group in order to assess the learning strategies implemented. Following the intervention, the participants belonging to the intervention group displayed significantly lower levels of stereotypes, perception of dangerousness, and global score toward people with schizophrenia (p < 0.001). In addition, participants presented lower levels of dangerousness-fear, avoidance, coercion, lack of solidarity, and global score (p < 0.001). The control group displayed no statistically significant differences in the level of stigma before and after the evaluation, for all of the items assessed. Finally, the overall assessment of each of the components of the program was highly positive. In conclusion, the study shows that online programs can contribute to reducing stigma toward mental disorders. The program assessed in this study had a positive impact on all the dimensions of stigma and all of the components of the program itself were positively evaluated by the participants.

scholarly journals (A296) Psychosocial Disaster Preparedness Program Form School Children

2011 ◽  
Vol 26 (S1) ◽  
pp. s83-s83 ◽  
Author(s):  
E.A. Raj ◽  
K. Sekar
Keyword(s):  
School Children ◽  
Disaster Preparedness ◽  
Tamil Nadu ◽  
Control Group ◽  
Care Givers ◽  
Effective Manner ◽  
Before And After ◽  
Teachers And Students ◽  
The Individual ◽  
The Impact

The impact of natural disasters on individuals is substantial. Among the affected population in any disaster, children are identified as the most vulnerable group along with women, aged and disabled people. An estimated 77 million children under 15, on average, had their lives severely disrupted by a natural disaster or an armed conflict, each year, between 1991 and 2000 (Plan UK, 2003). Children are most affected since they loose the familiar environment, loss of parents, witness death of their loved ones, fear of reoccurrence of the disaster event. The impact of disaster on children of different age group is multiple times greater than that of the adults. This leads to various psychological problems in children (Dave et al., 2003). Disaster preparedness, through care givers, is one among the ways to reduce the distress of individuals followed by any disaster because it reduces the vulnerability factor that minimizes the impact of any disaster on the individual. A disaster preparedness program with special reference to psychosocial aspects was developed and implemented among the school children through teachers in Kanniyakumari District, Tamil Nadu, India, one of the severely affected areas in Tsunami. The current attempt was to standardize a disaster preparedness module focusing on preparing children to deal with their psychosocial issues before and after disaster in an effective manner. The outcome of disaster preparedness input through teachers and its reach out to the students was determined through an experimental research. The results reveal that the teachers and students from the experimental group gained significantly more knowledge on psychosocial disaster preparedness after implementation of the program in comparison to control group where the program was not implemented. The implications of the study points out the need to integrate psychosocial component of disaster preparedness in to the broader Community Based Disaster Preparedness (CBDP) programs.

Effects of Comorbid Alcohol Use Disorder on the Clinical Outcomes of Schizophrenia: A Nationwide Population-based Study

2021 ◽  
Author(s):  
Soojin Ahn ◽  
Youngjae Choi ◽  
Woohyeok Choi ◽  
Young Tak Jo ◽  
Harin Kim ◽  
...  
Keyword(s):  
Alcohol Use ◽  
Clinical Outcomes ◽  
Alcohol Use Disorder ◽  
Medication Possession Ratio ◽  
Small Sample ◽  
Control Group ◽  
Diagnostic Code ◽  
Psychiatric Admissions ◽  
Before And After ◽  
The Impact

Abstract BackgroundAlcohol use disorder (AUD) is a common psychiatric comorbidity in schizophrenia, associated with poor clinical outcomes and medication noncompliance. Most previous studies on the effect of alcohol use in patients with schizophrenia had limitations of small sample size and a cross-sectional design. Therefore, this study aimed to use a nationwide population database to investigate the impact of AUD on clinical outcomes of schizophrenia.MethodsData from the Health Insurance Review Agency database in South Korea from January 1, 2007 to December 31, 2016 was used. Among 64,442 patients with incident schizophrenia, 1,598 with comorbid AUD were selected based on the diagnostic code F10. We performed between- and within-group analyses to compare the rates of psychiatric admissions and emergency room (ER) visits and medication possession ratio (MPR) with control patients having schizophrenia matched for the onset age, sex, and observation period.ResultsThe rates of psychiatric admissions and ER visits decreased after the diagnosis of AUD in both groups; however, the decrease was significantly greater in patients with comorbid AUD compared to the control group. While the case group showed an increase in MPR after the diagnosis of AUD, MPR decreased in the control patients. The rates of psychiatric admissions, ER visits and MPR were worse in the schizophrenia group with comorbid AUD both before and after the diagnosis of AUD.ConclusionsClinical outcomes were worse in the comorbid AUD group than in the control group before and after the diagnosis of AUD. Considering that patients with schizophrenia with comorbid AUD had poorer clinical outcomes even before the diagnosis of AUD, schizophrenia with comorbid AUD could be a distinct subtype of schizophrenia.

Quiet time: a nursing intervention to promote sleep in neurocritical care units

2001 ◽  
Vol 10 (2) ◽  
pp. 74-78 ◽  
Author(s):  
DM Olson ◽  
CO Borel ◽  
DT Laskowitz ◽  
DT Moore ◽  
ES McConnell
Keyword(s):  
Neurocritical Care ◽  
Control Period ◽  
Intervention Group ◽  
Nursing Intervention ◽  
Control Group ◽  
Quiet Time ◽  
Sleep Behavior ◽  
Environmental Stimuli ◽  
Before And After ◽  
The Impact

BACKGROUND: Patients in intensive care units are often sleep deprived, yet little research exists on the impact of nursing care on promoting sleep. OBJECTIVES: To determine if implementing a "quiet time" protocol to reduce external environmental stimuli is associated with increased frequency of sleep among patients in a neurocritical care unit. METHODS: Patients were observed 8 times each day before and after implementation of a protocol in which environmental sounds and lights were decreased from 2 AM to 4 AM and from 2 PM to 4 PM. Data collected at 2:45 AM, 3:30 AM, 2:45 PM, and 3:30 PM on patients with scores of 10 or greater on the Glasgow Coma Scale were analyzed. A total of 2975 observations were made on a total of 239 patients: 1446 observations on 118 patients in the control group and 1529 observations on 121 patients in the intervention group. RESULTS: The percentage of patients observed asleep was significantly higher during the months the quite-time period was implemented than during the control period before the intervention was started. The increase in sleep behavior was associated with decreased sound and light levels achieved during the quiet time. Patients observed during the intervention period were 1.6 times more likely to be asleep during the quiet time than were patients observed during the control period (P < .001). CONCLUSIONS: A concentrated effort by staff to reduce environmental stimuli at discrete preset intervals increases the likelihood of sleep during scheduled quiet time in the neurocritical care unit.

scholarly journals Health Outcomes of an Integrated Behaviour-Centred Water, Sanitation, Hygiene and Food Safety Intervention–A Randomised before and after Trial

2020 ◽  
Vol 17 (8) ◽  
pp. 2648 ◽  
Author(s):  
Tracy Morse ◽  
Elizabeth Tilley ◽  
Kondwani Chidziwisano ◽  
Rossanie Malolo ◽  
Janelisa Musaya
Keyword(s):  
Low Income ◽  
Diarrhoeal Disease ◽  
Control Group ◽  
Food Hygiene ◽  
Children Under Five ◽  
Under Five ◽  
Cluster Group ◽  
Point Reduction ◽  
Before And After ◽  
The Impact

Diarrhoeal disease in children under five in low income settings has been associated with multiple environmental exposure pathways, including complementary foods. Conducted from February to December 2018 in rural Malawi, this before and after trial with a control used diarrhoeal disease as a primary outcome, to measure the impact of a food hygiene intervention (food hygiene + handwashing) relative to a food hygiene and water, sanitation and hygiene (WASH) intervention (food hygiene + handwashing + faeces management + water management). The 31-week intervention was delivered by community-based coordinators through community events (n = 2), cluster group meetings (n = 17) and household visits (n = 14). Diarrhoeal disease was self-reported and measured through an end line survey, and daily diaries completed by caregivers. Difference-in-differences results show a 13-percentage point reduction in self-reported diarrhoea compared to the control group. There were also significant increases in the presence of proxy measures in each of the treatment groups (e.g., the presence of soap). We conclude that food hygiene interventions (including hand washing with soap) can significantly reduce diarrhoeal disease prevalence in children under five years in a low-income setting. Therefore, the promotion of food hygiene practices using a behaviour-centred approach should be embedded in nutrition and WASH policies and programming.

173 THE EFFECT OF EXERCISE ON FOLLICULOGENESIS IN MARES

2009 ◽  
Vol 21 (1) ◽  
pp. 185 ◽  
Author(s):  
D. E. Kelley ◽  
J. R. Gibbons ◽  
S. E. Pratt ◽  
R. L. Smith ◽  
C. J. Mortensen
Keyword(s):  
Growth Rate ◽  
Heat Stress ◽  
Transrectal Ultrasound ◽  
Follicular Development ◽  
Control Group ◽  
Follicular Growth ◽  
Embryo Recovery ◽  
Conditioning Period ◽  
Before And After ◽  
The Impact

The effects of exercise on follicular development in mares have not been well established; however, a combination of exercise and heat stress can negatively affect embryo recovery rate in mares. The purpose of this research was to examine the effects of exercise, independent of heat stress, on follicular development in mares. One thoroughbred and 12 quarter horse mares, aged 3 to 15 years, were used in this study. Mares were assigned to the control group or exercised at 0700 h, 6 days a week, as follows: warmed up 5 min at a walk for 3 m s–1 and then exercised 30 min, 9 m s–1 for 10 min, 13 m s–1 for 5 min, 9 m s–1 for 5 min, 13 m s–1 for 5 min, and 9 m s–1 for 5 min. Exercised mares were given a 1-month conditioning period. Rectal temperatures were recorded immediately before and after exercise. The mean rectal temperature of mares increased by 0.85°C during exercise, whereas control mares under the same environmental conditions did not experience temperature increases. Individual mares underwent a daily transrectal ultrasound examination with a 7.5-MHz linear rectal probe to monitor follicular development. Estrous cycles were normalized to 17 days for linear follicular growth analysis. Exercise had a significant impact on follicular growth at deviation, with a greater diameter of the largest (P < 0.05) and second largest (P < 0.01) follicles in exercised v. control mares (Table 1). Additionally, growth rate of the second largest follicle was greater in the exercised group (P < 0.01). Deviation was observed in 13 of 14 cycles in control mares, whereas in exercised mares, it was clear in only 11 of 16 cycles (χ2, P = 0.086). Time of deviation was defined as the day when a difference in the growth rate between the dominant and largest subordinate follicle of a wave was first observed. The largest subordinate follicle either declined in growth rate or regressed. At Day –5 (relative to ovulation), exercised mares had significantly greater follicle diameters in both the largest and second largest follicle (P < 0.05). Exercised mares had double ovulations in 4 of 16 cycles when compared with control mares, which had double ovulations in 1 of 14 cycles. No differences were found between groups in the length of the estrous cycle or ovulatory follicular diameter. Exercised mares exhibited larger diameter follicles and an increased growth rate of the largest subordinate follicle, suggesting that exercise delayed deviation. Further research is needed to assess the impact of exercise, independent of heat stress, on fertility. Table 1.Follicle dynamics in exercised v. non-exercised mares

scholarly journals The Impact of the Revised WIC Food Package on Maternal Nutrition During Pregnancy and Postpartum

2019 ◽  
Vol 188 (8) ◽  
pp. 1493-1502 ◽  
Author(s):  
Rita Hamad ◽  
Akansha Batra ◽  
Deborah Karasek ◽  
Kaja Z LeWinn ◽  
Nicole R Bush ◽  
...  
Keyword(s):  
Low Income ◽  
Maternal Nutrition ◽  
Temporal Trends ◽  
Dietary Quality ◽  
Sensitivity Analyses ◽  
Control Group ◽  
Food Package ◽  
Pregnancy And Postpartum ◽  
Before And After ◽  
The Impact

Abstract The Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) provides nutritional support for pregnant and postpartum women and young children. The typical food package provided to recipient families was revised in October 2009 to include more whole grains, fruits, vegetables, and low-fat milk. Little is known about whether these revisions improved nutrition among women during this critical period of the life course. We conducted a quasiexperimental difference-in-differences analysis, comparing WIC recipients (“treatment” group) before and after the WIC policy change, while accounting for temporal trends among nonrecipients (“control” group). We examined nutritional outcomes among a cohort of 1,454 women recruited during pregnancy in 2006–2011 in Memphis and surrounding Shelby County, Tennessee. We found improvements in several measures of dietary quality and nutrient intake during pregnancy, although these did not persist into the postpartum period. Results were robust to numerous sensitivity analyses. At a time when federal WIC funding is threatened, this study provides some of the first evidence of the benefits of recent WIC revisions among low-income women.

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