Showing papers by "DePaul University published in 2014"

Meta-analysis of the age-related positivity effect: Age differences in preferences for positive over negative information.

Abstract: In contrast to long-held axioms of old age as a time of “doom and gloom,” mounting evidence indicates an age-related positivity effect in attention and memory. However, several studies report inconsistent findings that raise critical questions about the effect’s reliability, robustness, and potential moderators. To address these questions, we conducted a systematic meta-analysis of 100 empirical studies of the positivity effect (N!7,129). Results indicate that the positivity effect is reliable and moderated by theoretically implicated methodological and sample characteristics. The positivity effect is larger in studies that do not constrain (vs. constrain) cognitive processing—reflecting older adults’ natural information processing preferences—and in studies incorporating wider (vs. narrower) age comparisons. Analyses indicated that older adults show a significant information processing bias toward positive versus negative information, whereas younger adults show the opposite pattern. We discuss implications of these findings for theoretical perspectives on emotion‐cognition interactions across the adult life span and suggest future research directions.

The Ideological-Conflict Hypothesis: Intolerance Among Both Liberals and Conservatives

Abstract: Decades of research in social and political psychology have demonstrated that political conservatives appear more intolerant toward a variety of groups than do political liberals. Recent work from our three independent labs has challenged this conventional wisdom by suggesting that some of the psychological underpinnings of intolerance are not exclusive to people on either end of the political spectrum. These studies have demonstrated that liberals and conservatives express similar levels of intolerance toward ideologically dissimilar and threatening groups. We suggest directions for future research and discuss the psychological and political implications of our conclusions.

Software traceability: trends and future directions

Abstract: Software traceability is a sought-after, yet often elusive quality in software-intensive systems. Required in safety-critical systems by many certifying bodies, such as the USA Federal Aviation Authority, software traceability is an essential element of the software development process. In practice, traceability is often conducted in an ad-hoc, after-the-fact manner and, therefore, its benefits are not always fully realized. Over the past decade, researchers have focused on specific areas of the traceability problem, developing more sophisticated tooling, promoting strategic planning, applying information retrieval techniques capable of semi-automating the trace creation and maintenance process, developing new trace query languages and visualization techniques that use trace links, and applying traceability in specific domains such as Model Driven Development, product line systems, and agile project environments. In this paper, we build upon a prior body of work to highlight the state-of-the-art in software traceability, and to present compelling areas of research that need to be addressed.

The Effect of Institutional Ownership on Payout Policy: Evidence from Index Thresholds

Abstract: We show firms pay more dividends and repurchase more shares when they have higher levels of institutional ownership, even if the institutions are not activist investors. We also find evidence of an effect of institutional ownership on proxy voting, profitability, R&D, and CEO compensation. Our identification strategy relies on an instrument for ownership based on the annual composition of the Russell 1,000 and 2,000 indices. Overall, results support agency models where institutional owners lower the marginal cost of delegated monitoring.

Computational Thinking in K-9 Education

Abstract: In this report we consider the current status of the coverage of computer science in education at the lowest levels of education in multiple countries. Our focus is on computational thinking (CT), a term meant to encompass a set of concepts and thought processes that aid in formulating problems and their solutions in different fields in a way that could involve computers [130].The main goal of this report is to help teachers, those involved in teacher education, and decision makers to make informed decisions about how and when CT can be included in their local institutions. We begin by defining CT and then discuss the current state of CT in K-9 education in multiple countries in Europe as well as the United States. Since many students are exposed to CT outside of school, we also discuss the current state of informal educational initiatives in the same set of countries.An important contribution of the report is a survey distributed to K-9 teachers, aiming at revealing to what extent different aspects of CT are already part of teachers' classroom practice and how this is done. The survey data suggest that some teachers are already involved in activities that have strong potential for introducing some aspects of CT. In addition to the examples given by teachers participating in the survey, we present some additional sample activities and lesson plans for working with aspects of CT in different subjects. We also discuss ways in which teacher training can be coordinated as well as the issue of repositories. We conclude with future directions for research in CT at school.

Evaluation and Measurement of Patient Experience

Abstract: Despite the increasing presence of a variety of measures of patient health care experiences in research and policy, there remains a lack of consensus regarding measurement. The objectives of this paper were to: (1) explore and describe what is known about measures and measurement of patient experience and (2) describe evaluation approaches/methods used to assess patient experience.

The Real Effects of Short-Selling Constraints

Abstract: We use a regulatory experiment (Regulation SHO) that relaxes short-selling constraints on a random sample of US stocks to test whether capital market frictions have an effect on stock prices and corporate decisions. We find that an increase in short-selling activity causes prices to fall, and that small firms react to these lower prices by reducing equity issues and investment. These results not only provide evidence that short-selling constraints affect asset prices, but also confirm that short-selling activity has a causal impact on financing and investment decisions.

Information diffusion among agents: : implications for humanitarian operations

Abstract: The basis for this article is an information-processing view of the UN's cluster approach. We use agent-based modeling and simulations to show that clusters, if properly utilized, encourage better information flow and thus facilitate effective response to disasters. The article intends to turn the attention of the humanitarian community to the importance of sharing information and the role of cluster leads in facilitating humanitarian aid. Our results indicate that if cluster leads act as information hubs, information reaches its target faster, enabling a prompt humanitarian response. In addition, we show that information quality is critical for effective resource utilization-if cluster leads filter information, it moves faster. We also found evidence that the willingness to exchange information plays a larger role in transmitting information than that of an information hub, particularly during later stages of response operations.

Challenges in humanitarian information management and exchange: evidence from Haiti.

Abstract: There is a growing recognition of the critical role information management can play in shaping effective humanitarian response, coordination and decision-making. Quality information, reaching more humanitarian actors, will result in better coordination and better decision-making, thus improving the response to beneficiaries as well as accountability to donors. The humanitarian response to the 2010 Haiti earthquake marked a watershed moment for humanitarian information management. Yet the fragmented nature of the response and the use of hierarchical models of information management, along with other factors, have led some observers to label the Haiti response a failure. Using an analytical framework often found in humanitarian emergencies, this study analyses challenges to information flow in the Haiti case and the implications for effective humanitarian response. It concludes by offering possible paths for overcoming such challenges, and for restoring the value and utility of humanitarian information management and exchange in humanitarian relief settings.

Violence directed against teachers: results from a national survey

Abstract: Teachers in U.S. schools report high rates of victimization, yet previous studies focus on select types of victimization and student perpetrators, which may underestimate the extent of the problem. This national study was based on work conducted by the American Psychological Association Classroom Violence Directed Against Teachers Task Force and is one of the few national studies to examine violence directed at teachers. Participants included 2,998 kindergarten through 12th-grade (K-12) teachers from 48 states who completed an anonymous web-based survey assessing their experiences with victimization. RESULTS revealed that 80% of teachers reported at least one victimization, and of these teachers, 94% reported being victimized by students. Nearly three-fourths of all teachers experienced at least one harassment offense, more than half experienced property offenses, and 44% reported physical attacks. FINDINGS suggest that specific teacher and community characteristics are associated with a higher likelihood of victimization, namely, male gender and urban settings; whereas, African American teachers were less likely to report victimization. Implications for teacher training, school interventions, public policy, and future research are discussed. Language: en

New strategies against Stenotrophomonas maltophilia: a serious worldwide intrinsically drug-resistant opportunistic pathogen

Abstract: Stenotrophomonas maltophilia is a worldwide human opportunistic pathogen associated with serious infections in humans, and is most often recovered from respiratory tract infections. In addition to its intrinsic drug resistance, this organism may acquire resistance via multiple molecular mechanisms. New antimicrobial strategies are needed to combat S. maltophilia infections, particularly in immunocompromised patients, cystic fibrosis patients with polymicrobial infections of the lung, and in patients with chronic infections. This editorial reports on newer drugs and antimicrobial strategies and their potential for use in treatment of S. maltophilia infections, the development of new technologies to detect this organism, and identifies strategies currently in use to reduce transmission of this pathogen.

The Long-Run Role of the Media: Evidence from Initial Public Offerings

Abstract: The unique characteristics of the U.S. initial public offering IPO process, particularly the strict quiet period regulations, allow us to explore the effects of media coverage when the coverage does not contain genuine news i.e., hard information that was previously unknown. We show that a simple, objective measure of pre-IPO media coverage is positively related to the stock's long-term value, liquidity, analyst coverage, and institutional investor ownership. Our results are robust to additional controls for size, to using abnormal or excess media, and to an instrumental variable approach. We also find that pre-IPO media coverage is negatively related to future expected returns, measured by the implied cost of capital. In all, we find a long-term role for media coverage, consistent with Merton's attention or investor recognition hypothesis. This paper was accepted by Brad Barber, finance.

Better Than Mermaids and Stray Dogs? Subtyping Auditory Verbal Hallucinations and Its Implications for Research and Practice

Abstract: The phenomenological diversity of auditory verbal hallucinations (AVH) is not currently accounted for by any model based around a single mechanism. This has led to the proposal that there may be distinct AVH subtypes, which each possess unique (as well as shared) underpinning mechanisms. This could have important implications both for research design and clinical interventions because different subtypes may be responsive to different types of treatment. This article explores how AVH subtypes may be identified at the levels of phenomenology, cognition, neurology, etiology, treatment response, diagnosis, and voice hearer’s own interpretations. Five subtypes are proposed; hypervigilance, autobiographical memory (subdivided into dissociative and nondissociative), inner speech (subdivided into obsessional, own thought, and novel), epileptic and deafferentation. We suggest other facets of AVH, including negative content and form (eg, commands), may be best treated as dimensional constructs that vary across subtypes. After considering the limitations and challenges of AVH subtyping, we highlight future research directions, including the need for a subtype assessment tool.

Teaching nontraditional adult students: adult learning theories in practice

Abstract: As the USA experiences rapid growth of nontraditional adult students in higher education, educators and institutions will increasingly need to look beyond the traditional youth-centric educational models to better address adult learning needs. To date, no research has been conducted examining the learning experiences of adult students enrolled in a disciplinary course that was built upon core principles of adult learning. Ten adult students (mean age = 45.4 years), enrolled in an American university with a college dedicated to adult students, were interviewed to assess their learning experiences and felt impact after completing a psychology course created upon adult learning principles. Findings revealed that students progressed through a five-themed model that challenged their pre-existing meaning structures, caused emotional and cognitive disequilibrium, and pushed them toward irrevocable change.

Maternal parenting predicts infant biobehavioral regulation among women with a history of childhood maltreatment.

Abstract: Early biobehavioral regulation, a major influence of later adaptation, develops through dyadic interactions with caregivers. Thus, identification of maternal characteristics that can ameliorate or exacerbate infants’ innate vulnerabilities is key for infant well-being and long-term healthy development. The present study evaluated the influence of maternal parenting, postpartum psychopathology, history of childhood maltreatment, and demographic risk on infant behavioral and physiological (i.e., salivary cortisol) regulation using the still-face paradigm. Our sample included 153 women with high rates of childhood maltreatment experiences. Mother–infant dyads completed a multimethod assessment at 7 months of age. Structural equation modeling showed that maternal positive (i.e., sensitive, warm, engaged, and joyful) and negative (i.e., overcontrolling and hostile) behaviors during interactions were associated with concurrent maternal depressive symptoms, single parent status, and low family income. In turn, positive parenting predicted improved infant behavioral regulation (i.e., positive affect and social behaviors following the stressor) and decreased cortisol reactivity (i.e., posttask levels that were similar to or lower than baseline cortisol). These findings suggest increased risk for those women experiencing high levels of depressive symptoms postpartum and highlight the importance of maternal positive interactive behaviors during the first year for children's neurodevelopment.

CSLIM: contextual SLIM recommendation algorithms

Abstract: Context-aware recommender systems (CARS) take contextual conditions into account when providing item recommendations. In recent years, context-aware matrix factorization (CAMF) has emerged as an extension of the matrix factorization technique that also incorporates contextual conditions. In this paper, we introduce another matrix factorization approach for contextual recommendations, the contextual SLIM (CSLIM) recommendation approach. It is derived from the sparse linear method (SLIM) which was designed for Top-N recommendations in traditional recommender systems. Based on the experimental evaluations over several context-aware data sets, we demonstrate that CLSIM can be an effective approach for context-aware recommendations, in many cases outperforming state-of-the-art CARS algorithms in the Top-N recommendation task.

Activation, Self-management, Engagement, and Retention in Behavioral Health Care: A Randomized Clinical Trial of the DECIDE Intervention

Abstract: IMPORTANCE Given minority patients’ unequal access to quality care, patient activation and self-management strategies have been suggested as a promising approach to improving mental health care. OBJECTIVE To determine whether the DECIDE (Decide the problem; Explore the questions; Closed or open-ended questions; Identify the who, why, or how of the problem; Direct questions to your health care professional; Enjoy a shared solution) intervention, an educational strategy that teaches patients to ask questions and make collaborative decisions with their health care professional, improves patient activation and self-management, as well as engagement and retention in behavioral health care.

Adolescents’ Social Status Goals: Relationships to Social Status Insecurity, Aggression, and Prosocial Behavior

Abstract: Peer status is an important aspect of adolescents’ social lives and is pursued actively by them. Although extensive research has examined how social behaviors are related to peer status (e.g., social preference, popularity), little attention has been given to adolescents’ social goals to obtain a desired peer status. Thus, this study examined two types of social status goals, popularity goal and social preference goal, and their relationships to social status insecurity and social behaviors among 405 ethnically diverse early adolescents (267 girls; M age = 12.92 years; age range = 11–15 years). After accounting for adolescents’ attained peer statuses (popularity and social preference), both social status goals were related distinctly to aggressive and prosocial behaviors as measured by self reports and peer nominations. Specifically, higher endorsement of the popularity goal was related to more self-reported relational aggression, but less peer-nominated prosocial behavior. In contrast, higher endorsement of the social preference goal was linked to less self-reported overt and relational aggression, but more self-reported and peer-nominated prosocial behavior. In addition, this study reveals that adolescents’ social status insecurity was related positively to both social status goals and had an indirect effect on adolescents’ social behaviors through the mediation of popularity goal endorsement. There were variations in goal endorsement as shown by groups of adolescents endorsing different levels of each goal. The group comparison results on social behaviors were largely consistent with the correlational findings. This study provides new insights into adolescents’ social cognitive processes about peer status and the implications of the two social status goals on adolescents’ behavioral development.

Predictors of Anonymous Cyber Aggression: The Role of Adolescents' Beliefs About Anonymity, Aggression, and the Permanency of Digital Content

Abstract: Little attention has been given to whether adolescents' beliefs about anonymity and their normative beliefs about cyber aggression jointly increase their perpetration of cyber aggression. To this end, the present longitudinal study examined the moderating influence of these variables on the relationships among adolescents' attitudes toward the permanency of digital content, confidence with not getting caught, and anonymous cyber aggression (ACA) assessed 1 year later (Time 2). These associations were examined among 274 7th and 8th graders and through five technologies, including social networking sites (SNS), e-mail, instant messenger (IM), mobile phones, and chatrooms. Findings indicated that increases in Time 2 ACA and attitudes toward the permanency of digital content were more strongly related when adolescents reported greater confidence with not getting caught and higher normative beliefs concerning cyber aggression through SNS and mobile phones. In addition, higher levels of attitudes towar...

Mind the gap: assessing the conformance of software traceability to relevant guidelines

Abstract: Many guidelines for safety-critical industries such as aeronautics, medical devices, and railway communications, specify that traceability must be used to demonstrate that a rigorous process has been followed and to provide evidence that the system is safe for use. In practice, there is a gap between what is prescribed by guidelines and what is implemented in practice, making it difficult for organizations and certifiers to fully evaluate the safety of the software system. In this paper we present an approach, which parses a guideline to extract a Traceability Model depicting software artifact types and their prescribed traces. It then analyzes the traceability data within a project to identify areas of traceability failure. Missing traceability paths, redundant and/or inconsistent data, and other problems are highlighted. We used our approach to evaluate the traceability of seven safety-critical software systems and found that none of the evaluated projects contained traceability that fully conformed to its relevant guidelines.

Marketing artistic careers: Pablo Picasso as brand manager

Abstract: Purpose – In recent years, scholars have begun suggesting that marketing can learn a lot from art and art history. This paper aims to build on that work by developing the proposition that successful artists are powerful brands. Design/methodology/approach – Using archival data and biographies, this paper explores the branding acumen of Pablo Picasso. Findings – Picasso maneuvered with consummate skill to assure his position in the art world. By mid-career, he had established his brand so successfully that he had the upper hand over the dealers who represented him, and his work was so sought-after that he could count on selling whatever proportion of it he chose to allow to leave his studio. In order to achieve this level of success, Picasso had to read the culture in which he operated and manage the efforts of a complex system of different intermediaries and stakeholders that was not unlike an organization. Based on an analysis of Picasso's career, the authors assert that in their management of these powe...

Validating a measure of myalgic encephalomyelitis/chronic fatigue syndrome symptomatology.

Abstract: Background: The diagnosis of myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is complex and largely based on self-reported symptom profiles. The field lacks consensus for a singular case definition and heterogeneous samples make comparability across studies difficult. Purpose: The present study sought to validate a comprehensive self-report measure of ME/CFS symptomatology to aid in clinical and research assessment. Methods: Exploratory factor analysis (EFA) was used to establish the underlying factor structure of the DePaul Symptom Questionnaire (DSQ) using a well-characterized sample of individuals (92.6% met the Fukuda et al. criteria and/or the Clinical Canadian Criteria) and this structure was then tested on a less stringently recruited sample of individuals utilizing a confirmatory factor analysis (CFA). Convergent and discriminant validity of the DSQ were also examined utilizing alternative measures of symptomatology and functioning. Results: A three-factor solution was found using EFA ...

The Degree of Disadvantage Incarceration and Inequality in Education

Abstract: This article examines how the rise in incarceration and its disproportionate concentration among low-skill, young African American men influences estimates of educational attainment in the United States. We focus on high school graduation rates and the persistent gap in attainment that exists between young black and white Americans. Although official statistics show a declining racial gap in high school dropout in recent years, conventional data sources exclude the incarcerated population from sample data. We show how those exclusions underestimate the extent of racial inequality in high school graduation and underestimate the dropout rate among young black men by as much as 40 percent. America’s prisons and jails have become repositories for high school dropouts, thereby obscuring the degree of disadvantage faced by black men in the contemporary United States and the relative competitiveness of the U.S. workforce.

An Ecological Model of Professional School Counseling

Abstract: The world has changed dramatically in the past 150 years, so much so that the common artifacts of the 21st century would make life hardly recognizable to someone from the early 1900s. In contrast to the great advances that have been seen in technology, health care, and engineering, the educational system in the United States has changed very little since the early 1900s (Heckman & Monterra, 2009). Grounded in the segmented, linear, and time-bound paradigm of the industrial revolution, many public schools operate similar to a factory (U.S. Department of Education, n.d.), where students are raw products that are run through the assembly line of education, exposed to different teachers who work independently to add their piece to the developing student before moving that student along to the next stop on the assembly line (Ayers, 2009). These schools-as-factories have a clear vision of what the final products should look like, and this final product is assessed and evaluated in an attempt to ensure that all graduates meet the same standards. Students who do not match these standards or who do not move through the process on time are deemed to be deficient and are eventually discarded (or allowed to discard themselves) from the system. The industrial model of education has grown stale and, too often, discourages innovation, collaboration, and shared leadership (U.S. Department of Education, n.d.). This approach, which values linear processes over cyclical processes, efficiency over quality, and uniformity over uniqueness, leads to an undemocratic system that asks a group of unique individuals to engage in a process that will attempt to make them more uniform and closer to a standardized vision of a "good student" and graduate (Angus, Mirel, & Vinovskis, 1988). As William Ayers (2009) put it, the message to the students is, "You are not important or unique; be only malleable and productive in terms established by a higher authority" (p. 390). One danger inherent in the industrial model of education is the number of students who do not fit the model's vision of a successful student. In an ever-changing world where people from different backgrounds must work together and where new technology is being introduced at incredible rates, the concept of a standardized learner is simply no longer relevant. Schools and school systems that operate under the belief that learning should take place in ordered, time-bound chunks and that knowledge remains static through time will not produce the graduates and, therefore, the workers and community members that an increasingly multicultural and technology-driven world demands (Angus et al., 1988; U.S. Department of Education, n.d.). Moreover, at a time when student alienation from schools is a serious problem (Schulz & Rubel, 2011; Sciarra & Ambrosino, 2011), educators who internalize the industrial model's vision of a successful student and place those expectations on their students may be exacerbating students' beliefs that school is not for them. In addition, counselors who cling to a rigid perspective of successful students rather than understanding the cultural values inherent in that vision are missing a key piece of being a culturally responsive counselor (Brown & Trusty, 2005; Locke, 2003); they are also more likely to participate in troublesome practices such as inequitable scheduling and advising (Holcomb-McCoy, 2007). What is needed is a new paradigm that appreciates diversity and is more responsive to the changes that characterize the 21st-century world. Because of their training in leadership, advocacy, and collaboration skills and their ability to think and work systemically, professional school counselors may be in a unique position to help initiate this change. In fact, professional school counseling has already started this process. Efforts to transform school counseling practice in order to address educational inequity and be more responsive to the needs of all students have taken root. …

Information Needs Priorities in Patients Diagnosed With Cancer: A Systematic Review.

Abstract: Information-sharing is an integral part of cancer care. Several studies have examined the information needs of patients with various types of cancer. However, the priorities of information needs among patients with cancer have not been reported. A systematic review was performed to identify published studies that examined priorities of information needs in patients with cancer. PubMed (1966 to February 2012), PsycINFO (1967 to February 2012), and CINAHL (1982 to February 2012) databases were searched to access relevant medical, psychological, and nursing literature. Thirty studies involving patients with breast, prostate, lung, colorectal, gynecologic, hematologic, and other cancers revealed patients' information needs priorities. The top three patient information priorities were related to prognosis, diagnosis, and treatment options. The top information priorities reported in this systematic review could serve as a start to elicit patients' information needs and guide patient education across the cancer care continuum. Being able to prioritize the most-needed information can make patient encounters more meaningful and useful.