Social and Behavioral Sciences Commons^™

Video Game Engagement, Gender, And Age: Examining Similarities And Differences In Motivation Between Those Who May Or May Not Play Video Games, Joseph Camarata

Electronic Theses and Dissertations

This research aims to fill a research gap by examining video games to explore whether gender, age, or hours played per week would exert any influence on the information of those who may or may not play video games. Mood Management Theory and Uses and Gratification Theory were used as the theoretical foundation for this study. Four-hundred-three East Tennessee State University students who received the survey via email were asked to voluntarily participate in a survey about their motivations behind playing video games. Results from MANOVA showed that the motivations of male participants on video games were significantly higher than …

Robust Jump Regressions, Jia Li, Viktor Todorov, George Tauchen

Research Collection School Of Economics

We develop robust inference methods for studying linear dependence between the jumps of discretely observed processes at high frequency. Unlike classical linear regressions, jump regressions are determined by a small number of jumps occurring over a fixed time interval and the rest of the components of the processes around the jump times. The latter are the continuous martingale parts of the processes as well as observation noise. By sampling more frequently the role of these components, which are hidden in the observed price, shrinks asymptotically. The robustness of our inference procedure is with respect to outliers, which are of particular …

A Domestic Solution For Transboundary Harm: Singapore's Haze Pollution Law, Mahdev Mohan

Research Collection Yong Pung How School Of Law

Toxic ‘haze’ from fires, often burning over dry peatland in Indonesia, has affected millions across Indonesia, Singapore and Malaysia, as well as parts of the Philippines and Thailand. For Singapore in particular, this slash-and-burn method of clearing land in Indonesia to cultivate crops such as oil palm has been an annual problem since 1972. However, 2015 stands out as the year Singapore experienced one of its worst episodes of haze pollution. Air quality based on the Pollutant Standards Index (PSI) plummeted to the ‘very unhealthy’ and ‘hazardous ranges’ for close to 50 days. Singapore suffered an estimated SGD $700 million …

On Time-Varying Factor Models: Estimation And Testing, Liangjun Su, Xia Wang

Research Collection School Of Economics

Conventional factor models assume that factor loadings are fixed over a long horizon of time, which appears overly restrictive and unrealistic in applications. In this paper, we introduce a time-varying factor model where factor loadings are allowed to change smoothly over time. We propose a local version of the principal component method to estimate the latent factors and time-varying factor loadings simultaneously. We establish the limiting distributions of the estimated factors and factor loadings in the standard large N and large T framework. We also propose a BIC-type information criterion to determine the number of factors, which can be used …

Love, Money, And Parental Goods: Does Parental Matchmaking Matter?, Fali Huang, Ginger Zhe Xu, Lixin Colin Xu

Research Collection School Of Economics

While parental matchmaking has been widespread throughout history and across countries, we know little about the relationship between parental matchmaking and marriage outcomes. Does parental involvement in matchmaking help ensure their needs are better taken care of by married children? This paper finds supportive evidence using a survey of Chinese couples. In particular, parental involvement in matchmaking is associated with having a more submissive wife, a greater number of children, a higher likelihood of having any male children, and a stronger belief of the husband in providing old age support to his parents. These benefits, however, are achieved at the …

A Specification Test Based On The Mcmc Output, Yong Li, Jun Yu, Tao Zeng

Research Collection School Of Economics

A test statistic is proposed to assess themodel specification after the model is estimated by Bayesian MCMC methods. Thenew test is motivated from the power enhancement technique of Fan, Liao and Yao(2015). It combines a component (J1) that tests anull point hypothesis in an expanded model and a power enhancement component (J0) obtained from the null model. It is shown that J0 converges to zero when the null model is correctly specified anddiverges when the null model is misspecified. Also shown is that J1 is asymptotically X2-distributed, suggesting that theproposed test is asymptotically pivotal, when the null model is correctlyspecified. …

A Martingale Difference-Divergence-Based Test For Specification, Liangjun Su, Xin Zheng

Research Collection School Of Economics

In this paper we propose a novel consistent model specification test based on the martingale difference divergence (MDD) of the error term given the covariates. The MDD equals zero if and only if error term is conditionally mean independent of the covariates. Our MDD test does not require any nonparametric estimation under the alternative and it is applicable even if we have many covariates in the regression model. We establish the asymptotic distributions of our test statistic under the null and a sequence of Pitman local alternatives converging to the null at the usual parametric rate. Simulations suggest that our …

Improved Likelihood Inferences For Weibull Regression Model, Yan Shen, Zhenlin Yang

Research Collection School Of Economics

A general procedure is developed for bias-correcting the maximum likelihood estimators (MLEs) of the parameters of Weibull regression model with either complete or right-censored data. Following the bias correction, variance corrections and hence improved t-ratios for model parameters are presented. Potentially improved t-ratios for other reliability-related quantities are also discussed. Simulation results show that the proposed method is effective in correcting the bias of the MLEs, and the resulted t-ratios generally improve over the regular t-ratios.

Monetary Policy And Energy Price Shocks, Bao Tan Huynh

Research Collection School Of Economics

A New Keynesian framework with endogenous energy production is proposed to investigate the role of monetary policy in addressing disturbances in energy markets. The novelty of the model lies in the endogenous production of energy with convex costs, explicit modeling of goods with different degrees of energy-dependency and sectoral price rigidities. Our analyses prescribe the desirable monetary responses to four types of energy price shocks, highlighting the distinct characteristics of each shock and affirming the need for diverse policy considerations. We also found several points of divergence in relation to previous studies on addressing energy supply shocks. In addition, we …

The Impact Of Duty Cycle Workflow On Sign-Out Practices: A Qualitative Study Of An Internal Medicine Residency Program In Maryland, Usa, Soo-Hoon Lee, Sanjay V. Desai, Philip H. Phan

Management Faculty Publications

OBJECTIVES: Although JCAHO requires a standardised approach to handoffs, and while many standardised protocols have been tested, sign-out practices continue to vary. We believe this is due to the variability in workflow during inpatient duty cycle. We investigate the impact of such workflows on intern sign-out practices.

DESIGN: We employed a prospective, grounded theory mixed-method design.

SETTING: The study was conducted at a residency programme in the mid-Atlantic USA. Two observers randomly evaluated three types of daily sign-outs for 1 week every 3 months from September 2013 to March 2014. The compliance of each observed behaviour to JCAHO's Handoff Communication …

Creating A Multiracial Lesson Plan, Clayton Davis

Capstone Projects and Master's Theses

The purpose of this project is to teach students about multiracial identity issues. Multiracial populations in the U.S. continue to grow and it’s important for educators to address the needs of these students. A 5-E multiracial literature lesson plan was created for second grade that incorporates KWL and Text-to-World teaching strategies. A second grade class were read two children’s picture books, each featuring a biracial protagonist, and were asked to discuss and evaluate the content and commonalities of these stories. Students recorded what they learned in this lesson in their KWL’s. The results reveal that some students understood the problems …

Persona Generation From Aggregated Social Media Data, Soon-Gyo Jung, Jisun An, Haewoon Kwak, Moeed Ahmad, Lene Nielsen, Bernard J. Jansen

Research Collection School Of Computing and Information Systems

We develop a methodology for persona generation using real time social media data for the distribution of products via online platforms. From a large social media account containing more than 30 million interactions from users from 181 countries engaging with more than 4,200 digital products produced by a global media corporation, we demonstrate that our methodology can first identify both distinct and impactful user segments and then create persona descriptions by automatically adding pertinent features, such as names, photos, and personal attributes. We validate our approach by implementing the methodology into an actual working system that leverages large scale online …

Navigating The New Terrain Of A Reserved Election, Tan K. B. Eugene

Research Collection Yong Pung How School Of Law

In a commentary, SMU Associate Professor of Law Eugene Tan discussed the workings of the upcoming Singapore presidential election. He noted that as the next election is a reserved one, all the more voters should specially consider a candidate’s commitment and contributions to multiracialism. On the reserved election mechanism, Associate Prof Tan noted that it helps ensure that the presidency is not only accessible, but is seen to be accessible to all the major racial communities in Singapore.“It functions as an inter-generational safeguard for minority representation, while not going as far as mechanically rotating the presidency among the major races, …

A Tale Of Two Chinese Cultural Centres, Tan K. B. Eugene

Research Collection Yong Pung How School Of Law

In a commentary, SMU Associate Professor of Law Eugene Tan shared his views on the opening of the Singapore Chinese Cultural Centre (SCCC), located in the financial district. He noted that the opening of the SCCC, established by the Singapore Federation of Chinese Clan Associations, marks another milestone in Singapore’s multiracialism, adding that Chinese Singaporeans can also manifest their identity and culture without being perceived to be exclusive or domineering.Comparing the SCCC to the Chinese Cultural Centre (CCC), established by China’s government during China’s President Xi Jinping’s state visit to Singapore in November 2015, Associate Prof Tan said although Singapore …

Exploiting Contextual Information For Fine-Grained Tweet Geolocation, Wen Haw Chong, Ee Peng Lim

Research Collection School Of Computing and Information Systems

The problem of fine-grained tweet geolocation is to link tweets to their posting venues. We solve this in a learning to rank framework by ranking candidate venues given a test tweet. The problem is challenging as tweets are short and the vast majority are non-geocoded, meaning information is sparse for building models. Nonetheless, although only a small fraction of tweets are geocoded, we find that they are posted by a substantial proportion of users. Essentially, such users have location history data. Along with tweet posting time, these serve as additional contextual information for geolocation. In designing our geolocation models, we …

The Social Progression Of Post -Traumatic Stress Disorder: Post Vietnam And September 11th Attacks, Ellie Mcdonald

Capstone Projects and Master's Theses

The Social Progression of Post-Traumatic Stress Disorder Post-Vietnam and September 11^th Attacks is an examination on the infrastructure of the U.S. Department of Veterans Affairs’and of the Department of Defense’s lack of clarity and misinformation of the challenges and effects of mental illness within military ranks. Post-traumatic stress disorder (PTSD) made the Diagnostic Statistical Manual (DSM) after Vietnam. Since then, PTSD has been reevaluate numerous times, to properly define it. This research is a comparative analysis of the misconceptions of PTSD as experienced by Vietnam veterans and the first responders of the September 11^th tragedy. My research charts …

(Re)Painting Self: Art Therapy And Ontological Security In Refugee Children, Domonique Jimerson

Capstone Projects and Master's Theses

To be a refugee is to know loss intimately. The refugee experience can be characterized by the multidimensional loss the loss of loved ones, support networks, economic security, culture, safety, and home.^{1 2} The compounding of traumatic experience can have a profound effect on belief systems and identity. This paper will explore the relationship between trauma and ontological state in resettled refugee children. The philosophical concept of ontological security considers the ability create consistent expectations about the way the world operates to a stable mental state.³ The three states of ontology security and shock will be useful in …

On The Ironic Effects Of Being Empathic: Consequences For Attitude Polarization And Intergroup Conflict, Emily Hanson

Arts & Sciences Graduate Student Theses and Dissertations

Empathy is frequently presented as the solution to intolerance; indeed, President Obama has cited an ‘empathy deficit’ in the conversation surrounding civil rights for minorities, women, and the LGBTQ community (Obama, 2006 ). However, an emerging psychological literature offers a “darker side” of empathy, which accounts for the parochial forces influencing empathic-motivations. Across two studies, the present thesis aims to further understand the parochial nature of empathy in the context of ideologically-based attitudinal polarization. In the first experiment, participants read about a hypothetical instance of heterosexual date rape, and provided their opinions on the male and female targets. Results supported …

The Effect Of Incentives On Pupil Dilation During Recognition Memory: An Attentional Saliency Account Of The Pupil Old/New Effect, Lisa A. Solinger

Arts & Sciences Graduate Student Theses and Dissertations

Another interesting feature of this OMS circuit is the strong surround suppression occurring in the inner retina, which enables both VG3-ACs and W3-RGCs to remain silent to the global image motion. Pharmacological evidence suggested wide-field and/or spiking ACs are the source of the inhibition. The specific AC types, however, have not been identified. To address this question, in chapter 3, I explored candidate cell types using transgenic mouse lines expressing Cre recombinase, mainly tyrosine hydroxylase (TH)-Cre transgenic mice. In 2-photon guided patch clamp recordings, response patterns of TH2-ACs to object motion visual stimuli corresponded to inhibitory inputs of both VG3-ACs …

Aquatic Adaptations And The Adoption Of Arctic Pottery Technology: Results Of Residue Analysis, Shelby L. Anderson, Shannon Tushingham, Tammy Y. Buonasera

Anthropology Faculty Publications and Presentations

The late adoption of pottery technology in the North American Arctic between 2,500 and 2,800 years ago coincides with the development of a specialized maritime economy. Arctic pottery technologies present an excellent case study for examining possible correlations between hunter-gatherer pottery and aquatic resource use. Review of the timing and distribution of early pottery in Alaska shows that early pottery is rare and dates at the earliest to 2,500 years ago; the earliest pottery is found in small numbers and primarily in coastal areas. Despite expectations that pottery use would be strongly linked to marine lipids, biomarkers and compound-specific δ …

Community Attitudes Regarding Public Safety In Bend, Oregon, Greg Stewart, Kris R. Henning

Criminology and Criminal Justice Faculty Publications and Presentations

This report provides the results of a recent community survey in Bend Oregon. The purpose of the survey was to provide feedback on the Bend Police Department's recent performance in achieving their community-oriented goals from the agency's 2015-2020 strategic plan. Most of the residents surveyed report feeling safe in the city and the police received high performance ratings for being available when needed, dealing with problems that impact public safety, and for reducing crime. Likewise, residents who had been contacted by the police during traffic stops or investigations rated these interactions positively. Specific recommendations are offered in the report with …

Environmental Dna (Edna) Detects The Invasive Crayfishes Orconectes Rusticus And Pacifastacus Leniusculus In Large Lakes Of North America, Eric R. Larson, Mark A. Renshaw, Crysta Gantz, John Umek, Sudeep Chandra, David M. Lodge, Scott P. Egan

Environmental Science and Management Faculty Publications and Presentations

We report results of a study that made reciprocal comparisons of environmental DNA (eDNA) assays for two major invasive crayfishes between their disparate invasive ranges in North America. Specifically, we tested for range expansions of the signal crayfish Pacifastacus leniusculus (Dana, 1852) into the Laurentian Great Lakes region known to be invaded by the rusty crayfish Orconectes rusticus (Girard, 1852), as well as for the invasion of O. rusticus into large lakes of California and Nevada, US known to be invaded by P. leniusculus. We compared eDNA detections to historic localities for O. rusticus within the Great Lakes, and to …

Environmental Justice And Gis: A Comparison Of Three Gis Methods For Estimating Vulnerable Population Exposed To Brownfield Pollution In Portland, Oregon, Kyle Goodman

Geography Masters Research Papers

This project compares three GIS techniques that estimate populations who are potentially affected by environmental contamination in Portland, Oregon. All three GIS techniques utilize polygon containment to estimate populations potentially exposed to pollutants based on block level census data. In this study, multiple buffer distances at half-mile increments were used across all three techniques. Circular Euclidean distance buffers surrounding a known contaminated property, such as documented brownfields, approximate the contamination zone. Accurate estimates for populations exposed to harmful environmental conditions could provide a better understanding of environmental justice issues. The specific research questions were: 1) Are the population estimates sensitive …

Stream Sedimentation Patterns In An Urban Beaver System: Fanno Creek, Oregon, Alexandra Joan Santora

Geography Masters Research Papers

Beaver activities can cause drastic changes to hydrogeomorphic processes by impounding waterways through the construction of dams, trapping sediments and reducing the downstream sediment load. The presence of beaver is increasing in urban areas. Urban streams exhibit hydrogeomorphic processes distinct from natural systems because of changes in land cover that alter hydrology. This case study was developed as part of an effort to understand the sedimentation patterns of a beaver impounded urban stream in Beaverton, Oregon. Twelve sediment samples were collected and processed for organic matter content and particle size and sediment depths were calculated using GIS software from data …

Stepping Up During Elections: Independent Central Banks And Inflation, Ana Caolina Garriga, Cesar M. Rodriguez

Economics Faculty Publications and Presentations

It has been argued that elections should affect inflation, but evidence thus far has not incontrovertibly shown such an effect. We argue that monetary institutions offset inflationary pressures originated by the electoral cycle. Delegation of monetary policy to independent central banks curbs politically induced inflationary pressures. The anti-inflationary effects of central bank independence depend on the governments’ incentives to boost the economy, a root of inflationary pressures. Those incentives are stronger in election years, especially when there is uncertainty about the electoral results. Independent central banks are better suited to counter inflation under those circumstances. Statistical analyses on a sample …

Narratives Of Marginalized Cyclists: Understanding Obstacles To Utilitarian Cycling Among Women And Minorities In Portland, Or, Amy Lubitow

TREC Final Reports

Research has demonstrated that everyday or utilitarian forms of cycling are most likely to generate positive population-level health impacts (Garrard et al., 2012), yet significant deterrents to routine cycling remain, particularly for women and minorities. The primary aim of this project was to conduct a qualitative interview study that generated rich, narrative data regarding obstacles to routine or utilitarian cycling for women and minorities who already see biking as a viable form of transit, but who make relatively few bike trips. A secondary aim of the project was to develop a set of specific interventions that have the potential to …

Peer-To-Peer Carsharing: Short-Term Effects On Travel Behavior In Portland, Or, Jennifer Dill, Nathan Mcneil, Steven Howland

TREC Final Reports

Peer-to-peer (P2P) carsharing is a relatively new concept in the U.S. Enabled by recent internet and mobile technology development, P2P carsharing generally involves a facilitating company connecting private vehicle owners to people who are interested in renting a vehicle. P2P carsharing has many things in common with business-to-consumer (B2C) carsharing services. Consumers join the service to rent vehicles on a short-term basis from locations dispersed throughout a certain area. Both services may allow households to reduce their private car ownership. However, P2P carsharing differs substantially from other models in that there are two distinct sets of consumers: those who rent …

Evaluating The Distributional Effects Of Regional Transportation Plans And Projects, Kristine Williams, Aaron Golub

TREC Final Reports

Metropolitan planning organizations (MPOs) have long been required to consider the equity implications of their regional transportation plans and processes. Funded by the National Institute for Transportation and Communities, this research aims to provide additional guidance to MPOs on how to evaluate distributional equity in regional plans and projects. The report begins with an overview of federal requirements related to equity in transportation planning. We then synthesize contemporary methods for measuring transportation equity and the distributional effects of plans and projects from a review of the literature and MPO plans and studies. The report concludes with exploratory case studies of …

Breaking Barriers To Bike Share: Insights On Equity From A Survey Of Bike Share System Owners And Operators, Steven Howland, Nathan Mcneil, Joseph Broach, Kenneth Rankins, John Macarthur, Jennifer Dill

TREC Final Reports

The number of public bike share systems has been increasing rapidly across the United States over the past five to 10 years. To date, most academic research around bike share in the U.S. has focused on the logistics of planning and operationalizing successful systems. Investigations of system users and impacts on the local community are less common, and studies focused on efforts to engage underserved communities in bike share are rarer still. This report uses a survey of representatives from 56 U.S. bike share systems to better understand and document current approaches toward serving low-income and minority populations. The survey …

Advancing An Open Ethos With Open Peer Review, Emily Ford

Library Faculty and Staff Publications and Presentations

Guest Editorial

Open source. Open access. Open data. Open notebooks. Open government. Open educational resources. Open access workflows. To be open is to have a disposition favoring transparent and collaborative efforts.

Open is everywhere. Since the late 90’s when developers in Silicon Valley adopted the term ‘open source’ (suggested by Christine Peterson), the open movement has grown by leaps and bounds. The developers, who met after the web browser company Netscape made its source code open, articulated that ‘open’ “…illustrated a valuable way to engage with potential software users and developers, and convince them to create and improve source code …