John Warren

• Ph.D
• Professor (Associate) at The University of Texas at San Antonio

Health consumers such as patients and caregivers often join virtual health communities (VHCs) to seek and provide health-related information and emotional support. To do so, they converse with other individuals in platforms such as public discussion boards and blogs. During these online conversations, people may communicate their personal health in...

Efforts to understand what goes on in the mind of an insider have taken a back seat to developing technical controls, yet insider threat incidents persist. We examine insider threat incidents with malicious intent and propose an explanation through a relationship between Dark Triad personality traits and the insider threat. Although Dark Triad pers...

The use of social media technologies and platforms for health communications has grown dramatically over the past decade. Health consumers such as patients and caregivers join virtual health communities and exchange social support with other users on these websites. Communicating personal health information (PHI) in public discussions is a part of...

In this age of social media, an increasing number of individuals adopt health social media platforms to exchange social support with other Internet users. However, sharing PHI in publicly available virtual environments may yield negative outcomes. This may raise privacy concerns for users of these platforms. In this study, we examined the privacy c...

During the past decade, the proliferation of social media has infiltrated various sectors of social and business communications. Of particular interest is the growth of health related websites and the healthcare sector’s adoption of social media. In this paper, we develop a typology of Health 2.0 collaboration platforms and websites. Two major type...

During the past decade, the proliferation of social media has infiltrated various sectors of social and business communications. Of particular interest is the growth of health related websites and the healthcare sector’s adoption of social media. In this paper, we develop a typology of Health 2.0 collaboration platforms and websites. Two major type...

This study is an update of a previous scientometric study that examined the leading Information Systems (IS) researchers, their university affiliations, and the universities that supply them. We provide geographical comparisons of researcher affiliations for the AIS regions and for North American versus global institutions, along with a comparison...

This study examined the etiology of transformational leadership in virtual team contexts. First, we compared 127 members of virtual decision-making teams with 135 members of traditional face-to-face teams in terms of the relationship between aspects of personality and the emergence of transformational leadership. The type of communication media (fa...

The positive relationship between trust and purchase-related variables (such as willingness to buy) has been widely reported in literature. By implication, it is sometimes suggested that violation of trust will lead to negative consequences. However, there is a dearth of empirical support for the consequences of trust violation. In the current stud...

This Stud. Examines the Leading IS Researchers and the Universities That Supp. Them. We Reviewed Publ. from Nine Leading IS Journals during Calendar Years 2003 to 2007. during That Time, 3,404 Researchers Contributed Toward 2 155 Publ. Articles. Our Anal. Shows That Most of the Leading Researchers Were Affil. with In-rfstitutions in N. Amer.. Our S...

This case examines the failed implementation of an electronic workflow system at a very successful, medium-sized company in South Korea. The CEO of the company approved and supported the system, invested substantial resources in its development and implementation, and mandated that the entire organization adopt and use the system. However, the impo...

The proliferation of interest in collaborative computer applications in the past de- cade has resulted in a corresponding increase in the interest in multiuser interfaces. This research seeks to contribute to an understanding of the process of developing user models for group interaction and to the design and implementation of multiuser interfaces...

This study investigates how a personality trait and expertise affect virtual teams interaction, and how that interaction leads to different levels of performance (e.g., solution quality, solution acceptance, cohesion). Teams have been shown to exhibit constructive, aggressive/defensive, or passive/defensive interaction styles that affect communicat...

Investments in Information and Communications Technology (ICT) have been a major issue of concern in academia and industry. How much a country should invest in its telecommunications infrastructure so as to improve their levels of teledensity is a major challenge. This research examines investments in the telecommunications sector of low and middle...

This paper investigates the effects of extraversion, and team member expertise on virtual team interaction and performance. Sixty-three virtual teams of professional managers participated in an intellective decision making task using a web-based conferencing tool. The results revealed level of extraversion to be positively and significantly correla...

Over-dependence of African countries on the West has been reflected in various socioeconomic dimensions. Such dependence has also been reflected in the telecommunications industry of Africa's LDCs in a bid to solve its low teledensity (number of main telephone lines per one hundred inhabitants) problems. African LDCs are greatly behind other region...

The study of team performance and the variables affecting team work success has been well documented in the information systems literature. Previous research indicates that expertise, extraversion, and group interaction styles influence successful outcomes in tasks involving work teams. However, there is very little published research on the effect...