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51.
Lia Nower Kyle R. Caler Dylan Pickering Alex Blaszczynski 《Journal of gambling studies / co-sponsored by the National Council on Problem Gambling and Institute for the Study of Gambling and Commercial Gaming》2018,34(3):727-737
Studies point to a relationship between fantasy sports/daily fantasy sports (DFS) play and gambling behavior. However, little is known about the nature of those relationships, particularly regarding the development of gambling problems. This study investigates the nature, frequency, and preferences of gambling behavior as well as problem gambling severity and comorbid conditions among DFS players. Data were collected from an epidemiologic survey of 3634 New Jersey residents on gambling and leisure activities. Participants were contacted by phone (land-line and cell) and online to obtain a representative, cross-sectional sample of non-institutionalized adults, aged 18 years or older. Excluding non-gamblers, the remaining 2146 participants, included in these analyses, indicated they had either played DFS (n = 299) or had gambled but not played DFS (1847) in the past year. Univariate comparisons and multiple logistic regression analyses were performed to identify the most significant characteristics and predictors of DFS players. Overall, a higher number of gambling activities, high frequency gambling, male gender, and reports of suicidal thoughts in the past year were most predictive of DFS players. Being Hispanic (vs. Caucasian) and/or single (vs. married or living with a partner) also doubled the odds of DFS play. Findings suggest that DFS players are characterized by high gambling frequency and problem severity and comorbid problems, notably suicidal ideation. Future research should examine the motivations and possible etiological sub-types of DFS players and the nature and course of DFS play, particularly in relation to gambling behavior and the development of gambling and other problems. 相似文献
52.
Lan Wang Gangshu Cai Andy A. Tsay Asoo J. Vakharia 《Production and Operations Management》2017,26(8):1585-1603
A key attribute of a remanufacturing strategy is the division of labor in the reverse channel, especially whether remanufacturing is performed in‐house or outsourced. We investigate this decision for a retailer who accepts returns of a remanufacturable product. Our formulation considers the cost structures of the two strategies, uncertainty in the input quality of the collected/returned used products, consumer willingness‐to‐pay for remanufactured product, the extent to which the remanufactured product cannibalizes demand for a new product, and the power structure in the channel. For the profit‐maximizing retailer, the differentials in variable remanufacturing costs drive strategy choice, and higher fixed costs of in‐house remanufacturing favors outsourcing. The variable remanufacturing costs and the balance of power in the prospective outsourced reverse channel are the key drivers of environmental impact, as measured by the retailer's propensity to remanufacture. While profitability and environmental goals often conflict, they align under certain conditions. These include (a) the third party has less bargaining power; or (b) the fixed cost for in‐house remanufacturing is relatively high. All else equal, when remanufacturing is outsourced, the environment fares better if the third party has leadership power. We generalize to the cases when remanufacturing achieves a quality level less than “good‐as‐new" and when used items have non‐zero salvage value. Analysis of these extensions illuminates how relative power in the reverse channel drives the firms’ preferences, as well as the end customers’ consumption experience. 相似文献
53.
Helen L. McLachlan Della A. Forster Sue Kildea Jane Freemantle Jennifer Browne Jeremy Oats Michelle Newton Marika Jackomos Jacqueline Watkins Simone Andy Sue Jacobs Ngaree Blow Karyn Ferguson Catherine Chamberlain Susan Donath Lisa Gold Helena Maher Jenny Ryan Pam McCalman 《Women and birth : journal of the Australian College of Midwives》2017
54.
Andy C. L. Yeung T. C. Edwin Cheng Kee‐hung Lai 《Production and Operations Management》2005,14(2):189-204
Much of the empirical research in the past two decades has suggested that quality management (QM) is context dependent. This research develops an empirical QM model in a technology‐based sector—electronics manufacturing. Based on quantitative and qualitative investigations of 225 electronics firms in Hong Kong and the Pearl River Delta (PRD) region of China, a path analytic model is developed. The empirical model shows that a typical quality management system (QMS) in the electronics industry is composed of four major modules, namely leadership, cultural elements, operational support systems, and process management. These modules create a series of chain effects on organizational performance, rather than acting as parallel elements with an equal impact. By quantifying their effects on organizational performance and comparing the model to others in the literature, we identify those QM constructs that are context dependent. In electronics manufacturing, process management and customer focus are more important than other elements (e.g., cultural factors) for garnering business results. This study contributes to contingency theory and research by identifying the key constructs and their relationships in a competitive, volatile, and technology‐based industry with complex supply networks. 相似文献
55.
M. Weatherall R.M. Pickering Scott Harris 《Australian & New Zealand Journal of Statistics》2009,51(4):397-413
Graphical sensitivity analyses have recently been recommended for clinical trials with non‐ignorable missing outcome. We demonstrate an adaptation of this methodology for a continuous outcome of a trial of three cognitive‐behavioural therapies for mild depression in primary care, in which one arm had unexpectedly high levels of missing data. Fixed‐value and multiple imputations from a normal distribution (assuming either varying mean and fixed standard deviation, or fixed mean and varying standard deviation) were used to obtain contour plots of the contrast estimates with their P‐values superimposed, their confidence intervals, and the root mean square errors. Imputation was based either on the outcome value alone, or on change from baseline. The plots showed fixed‐value imputation to be more sensitive than imputing from a normal distribution, but the normally distributed imputations were subject to sampling noise. The contours of the sensitivity plots were close to linear in appearance, with the slope approximately equal to the ratio of the proportions of subjects with missing data in each trial arm. 相似文献
56.
Andy Ross Ingrid Schoon Peter Martin Amanda Sacker 《Journal of marriage and the family》2009,71(1):1-14
The aim of this paper is to examine variations in the combination of social roles during times of social change. We specify a latent class approach to examine role configurations for individuals in their early 30s, establishing a typology of how work‐ and family‐related roles combine within individuals born 12 years apart and examine their antecedents. Drawing on data collected for two British Birth Cohorts born in 1958 (N = 10,706) and 1970 (N = 11,005), we provide empirical evidence of both consistency and change in life course patterns. Findings are discussed in terms of destandardization, differentiation, and individualization of the life course in times of social change and their implications for family research within a life course perspective. 相似文献
57.
In order to identify outliers in contingency tables, we evaluate the derivatives of the perturbation-formed surface of the Pearson goodness-of-fit statistic. The resulting diagnostics are shown to be less susceptible to masking and swamping problems than residual-based measures. A Monte Carlo study further confirms the effectiveness of the proposed diagnostics. 相似文献
58.
Davies J McCrae BP Frank J Dochnahl A Pickering T Harrison B Zakrzewski M Wilson K 《Journal of American college health : J of ACH》2000,48(6):259-267
Seven focus groups at a university campus were formed to identify college men's health concerns, barriers to seeking help, and recommendations to help college men adopt healthier lifestyles. Content analysis was used to identify and organize primary patterns in the focus-group data. Results of the study revealed that the college men were aware that they had important health needs but took little action to address them. The participants identified both physical and emotional health concerns. Alcohol and substance abuse were rated as the most important issues for men. The greatest barrier to seeking services was the men's socialization to be independent and conceal vulnerability. The most frequently mentioned suggestions for helping men adopt healthier lifestyles were offering health classes, providing health information call-in service, and developing a men's center. Implications of the results are discussed. 相似文献
59.
60.
In this paper we reflect on two related questions. First, how have we arrived at a position where null hypothesis significance testing is the dominant criterion employed by quantitative researchers when deciding on whether or not a result is ‘significant'? Second, how might we change the practice of quantitative management research by promoting a greater plurality of methods, and in doing so better enable scholars to put phenomena before design? We conclude by arguing that quantitative management researchers need to focus on the epistemological issues surrounding the role of scholarly reasoning in justifying knowledge claims. By embracing a plurality of approaches to reasoning quantitative researchers will be better able to escape the straitjacket of null hypothesis significance testing and, in doing so, reorder their priorities by putting phenomena before design. 相似文献