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Despite a growing literature on college students’ sexual behaviors, little is known about how sexual behaviors, and their associations with alcohol, differ for college and noncollege attenders, and whether these patterns represent changes during college or an extension of pre‐college behaviors. This paper applied time‐varying effect models to data from the National Longitudinal Study of Adolescent to Adult Health to examine (1) prevalence of four sexual behaviors from ages 14 to 24 and (2) how their association with frequent heavy episodic drinking varied across these ages for college and noncollege attenders. Nonattenders have higher prevalence of all sexual behaviors than college attenders across most ages; however, the association between heavy episodic drinking and sexual behaviors is stronger for college attenders during ages 18–20.  相似文献   
154.
Rates of alcohol use for sexual minority youths are nearly twice that of their heterosexual peers, yet specific risk and protective factors associated with alcohol use among sexual minority youths remain unclear. Structural equation modeling is used to examine relations among alcohol use, peer and family support, and discrimination among 207 diverse sexual minority youths. Discrimination had no relationship to alcohol use; however, it was negatively associated with peer and family support. Peer support was associated with greater alcohol use among bisexual youths. This study adds to our understanding of the roles of discrimination, social support, and alcohol use among diverse sexual minority youths.  相似文献   
155.
The Freedom of Information Act (FOI) is a powerful tool for social researchers. However, these researchers have yet to harness the full potential of FOIA. Drawing on a number of studies using FOIA as a method of obtaining data, this article identifies the potential uses of FOIA and the limitations in its use, offering important advice on research design for studies which use FOIA both in the UK and abroad. The section ‘The role of freedom of information in research’ outlines the provisions of the UK FOIA and the section ‘How to make a request for information’ outlines the costs and benefits of utilising FOIA as a data collection tool. In sections ‘The risks and rewards of FOIA’ and ‘Combining FOIA and other methodologies,’ the article considers the place of FOIA within mixed methodology and cross jurisdictional studies, demonstrating the central role that FOIA can play in research.  相似文献   
156.
Spending money on time saving purchases improves happiness. Yet, people often fail to spend their money in this way. Because most people believe that the future will be less busy than the present, they may underweight the value of these purchases. We examine the impact of debiasing this previously unexplored barrier of consumer decisions to ‘buy time’ in a field experiment with a US-based sharing economy (N = 78,726). Prompting people to think that they will be as busy in the future as they are today increased the likelihood that customers would both open the email and click a link to purchase various services. In sum, making the future feel as busy as the present encourages individuals to buy future time.  相似文献   
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Distributed workers – those who work autonomously and remotely from their organisation’s main locations for at least some of their work-time – are an important and growing proportion of the workforce that share common characteristics of temporal and spatial distance. Yet, many leadership styles and management practices assume face-to-face interaction, potentially rendering them less helpful in trying to ensure good occupational safety and health (OSH) outcomes for distributed workers. We conducted a systematic literature review to examine the leadership and management of OSH for distributed workers. Twenty-three papers were identified. Eleven papers identified established leadership styles, including leader-member exchange, (safety specific) transformational and considerate leadership. Twenty papers examined management. Findings from these 20 papers were interpreted as representing resources, deployed through management and utilised by managers to ensure OSH for distributed workers, including communication technologies, social support and a good safety climate. Despite limited research in this area, findings indicate the importance of both leadership and management in ensuring OSH for distributed workers. Findings suggest a fertile area for future enquiry.  相似文献   
159.
Discrete-trial instruction (DTI) is a well-established instructional method for teaching children with autism. Accurate implementation of DTI procedures requires that staff be well trained. This study examined the effectiveness of job aids followed by post performance review of strengths, errors, and accuracy on discrete trial instructional accuracy in three participants who conducted DTI within their current job positions. Additionally, primary training procedures were embedded within a meta-shaping procedure, which involved the gradual and systematic introduction of three levels of behavioral components required for accurate implementation of the DTI sequence with mastery criteria set at 90% accuracy across all three levels. As demonstrated in a changing criterion within a multiple baseline design, staff demonstrated increases in DTI accuracy following the initiation of the job aid condition; however, some degree of performance-based feedback was required to establish high levels of procedural fidelity across the DTI sequence. Performance accuracy on maintenance probes remained at high levels. These findings provide support that job aids followed by performance-based feedback may be an effective and efficient method for shaping high levels of DTI procedural fidelity in staff. Additionally, gradual shaping of the DTI accuracy may scaffold performance, minimize errors, and increase social validity.  相似文献   
160.
A number of market changes are impacting the way financial institutions are managing their automated teller machines (ATMs). We propose a new class of adaptive data‐driven policies for a stochastic inventory control problem faced by a large financial institution that manages cash at several ATMs. Senior management were concerned that their current cash supply system to manage ATMs was inefficient and outdated, and suspected that using improved cash management could reduce overall system cost. Our task was to provide a robust procedure to tackle the ATM's cash deployment strategies. Current industry practice uses a periodic review system with infrequent parameter updates for cash management based on the assumption that demand is normally distributed during the review period. This assumption did not hold during our investigation, warranting a new and robust analysis. Moreover, we discovered that forecast errors are often not normally distributed and that these error distributions change dramatically over time. Our approach finds the optimal time series forecaster and the best‐fitting weekly forecast error distribution. The guaranteed optimal target cash inventory level and time between orders could only be obtained through an optimization module that was embedded in a simulation routine that we built for the institution. We employed an exploratory case study methodology to collect cash withdrawal data at 21 ATMs owned and operated by the financial institution. Our new approach shows a 4.6% overall cost reduction. This reflects an annual cost savings of over $250,000 for the 2,500 ATM units that are operated by the bank.  相似文献   
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