Obesity is a rising problem among adolescents in modern societies; it results in long-term cardio... more Obesity is a rising problem among adolescents in modern societies; it results in long-term cardio-metabolic problems. Possible overlooked drivers of obesity and its consequent cardio-metabolic deficits include videogame addiction and the resulting curtailed sleep; both are growing problems among adolescents. The objective of this study is to examine possible associations among these concepts in adolescents, as a means to point to plausible interventions. Data were collected from 94 adolescents who play videogames and are enrolled in outpatient clinics, using surveys, wearable sleep monitors (FitBit), physical exams, and blood tests at three points in time. These data were subjected to structural equation modeling (SEM) analyses and bootstrapping-based mediation testing procedures. Videogame addiction among adolescents was negatively associated with sleep duration (β = -0.24). Sleep duration was negatively associated with obesity (β = -0.30), which in turn was associated with elevate...
This study examines a behavioral tripartite model developed in the field of addiction, and applie... more This study examines a behavioral tripartite model developed in the field of addiction, and applies it here to understanding general and impulsive information technology use. It suggests that technology use is driven by two information-processing brain systems: reflective and impulsive, and that their effects on use are modulated by interoceptive awareness processes. The resultant reflective-impulsive-interoceptive awareness model is tested in two behavioral studies. Both studies employ SEM techniques to time-lagged self-report data from n 1 = 300 and n 2 = 369 social networking site users. Study 1 demonstrated that temptations augment the effect of habit on technology use, and reduce the effect of satisfaction on use. Study 2 showed that temptations strengthen the effect of habit on impulsive technology use, and weaken the effect of behavioral expectations on impulsive technology use. Hence, the results consistently support the notion that information technology users' behaviors are influenced by reflective and impulsive information processing systems; and that the equilibrium of these systems is determined, at least in part, by one's temptations. These results can serve as a basis for understanding the etiology of modern day addictions.
Over the last decade, researchers and practitioners have recommended a myriad of information and ... more Over the last decade, researchers and practitioners have recommended a myriad of information and communication technologies to operationalize the notion of a virtual enterprise. Among the business process transformations enabled through these new ...
This study illustrates the conceptual and statistical issues stemming from the use of nested, int... more This study illustrates the conceptual and statistical issues stemming from the use of nested, interdependent data in negotiation research. To this end, the nature and forms of interdependence are discussed, several models of interdependence are outlined, and methods for analyzing interdependent data are presented. Furthermore, an example using the actor–partner interdependence model is given. This discussion and example may provide
... Auctions become more exciting and competitive when similar items have close end times. Many a... more ... Auctions become more exciting and competitive when similar items have close end times. Many auctioneers believe they save money when cross-bidding within several auctions, which also encourages bidding frequency. As ...
Concepts, Methodologies, Tools, and Applications, 2009
Contractual Obligations Between Mobile Service Providers and Users (9781605660547): Robert Willis... more Contractual Obligations Between Mobile Service Providers and Users (9781605660547): Robert Willis, Alexander Serenko, Ofir Turel: Book Chapters.
Http Dx Doi Org 10 1080 03610911003615816, Apr 6, 2010
In this article we propose an improvement of the Kolmogorov-Smirnov test for normality. In the cu... more In this article we propose an improvement of the Kolmogorov-Smirnov test for normality. In the current implementation of the Kolmogorov-Smirnov test, given data are compared with a normal distribution that uses the sample mean and the sample variance. We propose to select the mean and variance of the normal distribution that provide the closest fit to the data. This is like shifting and stretching the reference normal distribution so that it fits the data in the best possible way. A study of the power of the proposed test indicates that the test is able to discriminate between the normal distribution and distributions such as uniform, bimodal, beta, exponential, and log-normal that are different in shape but has a relatively lower power against the student's, t-distribution that is similar in shape to the normal distribution. We also compare the performance (both in power and sensitivity to outlying observations) of the proposed test with existing normality tests such as Anderson–Darling and Shapiro–Francia.
Adults who present ADHD symptoms have an increased risk for vehicle accidents. One conceivable ov... more Adults who present ADHD symptoms have an increased risk for vehicle accidents. One conceivable overlooked account for this association is the possibility that people with ADHD symptoms use rewarding technologies such as social networking sites (SNS) while driving, more than others. The objective of this study was to understand if and how ADHD symptoms can promote SNS use while driving and specifically to conceptualize and examine mechanisms which may underlie this association. To do so, ADHD is viewed in this study as an underlying syndrome that promotes SNS use while driving in a manner similar to how addictive syndromes promote compulsive seeking of drug rewards. Time-lagged survey data regarding ADHD, stress, self-esteem, SNS craving experience, SNS use while driving, and control variables were collected from a sample of 457 participants who use a popular SNS (Facebook) and drive, after face-validity examination with a panel of five users and pretest with a sample of 47. These data were subjected to structural equation modeling (SEM) analyses using the frequency of ADHD symptoms measured with ASRS v1.1 Part A as a continuous variable, as well as multivariate analysis of variance using ADHD classification based on ASRS v1.1 scoring guidelines. ADHD symptoms promoted increased stress and reduced self-esteem, which in turn, together with ADHD symptoms, increased one's cravings to use the SNS. These cravings ultimately translated into increased SNS use while driving. Using the ASRS v1.1 classification, people having symptoms highly consistent with ADHD presented elevated levels of stress, cravings to use the SNS, and SNS use while driving, as well as decreased levels of self-esteem. Cravings to use the SNS among men were more potent than among women. SNS use while driving may be more prevalent than previously assumed and may be indirectly associated with ADHD symptoms. It is a new form of impulsive and risky behavior which is more common among people with symptoms compatible with ADHD than among others. Consistent with addiction and decision making models, SNS use while driving can be viewed as a form of a compensatory reward seeking behavior. As such, prevention and reduction interventions that target the mediating perceptions and states should be devised.
International Journal of Mobile Communications, Mar 20, 2015
The emergence of mobile value-added services has introduced a broad range of new use contexts, wh... more The emergence of mobile value-added services has introduced a broad range of new use contexts, which were not faced in the stationary PC environment. Thus, extant usability models need to be modified in order to capture this change. As such, this paper suggests ...
The existing literature on VC strategy is scarce. The reasons for such dearth of research on VC s... more The existing literature on VC strategy is scarce. The reasons for such dearth of research on VC strategy are seemingly that while VCs may occasionally comment on strategic issues (Gupta, 2005) and a few researchers have examined the subject (Robinson, 1987; King, 2008), we do not actually have a theory (or even a suitable taxonomy) explaining the differences in VC
Prior research has established the existence of numerous disagreements and conflicts in the VC-en... more Prior research has established the existence of numerous disagreements and conflicts in the VC-entrepreneur relationship (Sapienza, 1989; 1992; Gomez-Mejia et al., 1990; Ehrlich et al., 1994) that may be spurred by both parties’ opportunistic behavior negatively influencing perception of procedural justice (Sapienza and Korsgaard, 1996; Busenitz et al., 1998) and venture profitability (Higashide and Birley, 2002). Previous studies have not
Obesity is a rising problem among adolescents in modern societies; it results in long-term cardio... more Obesity is a rising problem among adolescents in modern societies; it results in long-term cardio-metabolic problems. Possible overlooked drivers of obesity and its consequent cardio-metabolic deficits include videogame addiction and the resulting curtailed sleep; both are growing problems among adolescents. The objective of this study is to examine possible associations among these concepts in adolescents, as a means to point to plausible interventions. Data were collected from 94 adolescents who play videogames and are enrolled in outpatient clinics, using surveys, wearable sleep monitors (FitBit), physical exams, and blood tests at three points in time. These data were subjected to structural equation modeling (SEM) analyses and bootstrapping-based mediation testing procedures. Videogame addiction among adolescents was negatively associated with sleep duration (β = -0.24). Sleep duration was negatively associated with obesity (β = -0.30), which in turn was associated with elevate...
This study examines a behavioral tripartite model developed in the field of addiction, and applie... more This study examines a behavioral tripartite model developed in the field of addiction, and applies it here to understanding general and impulsive information technology use. It suggests that technology use is driven by two information-processing brain systems: reflective and impulsive, and that their effects on use are modulated by interoceptive awareness processes. The resultant reflective-impulsive-interoceptive awareness model is tested in two behavioral studies. Both studies employ SEM techniques to time-lagged self-report data from n 1 = 300 and n 2 = 369 social networking site users. Study 1 demonstrated that temptations augment the effect of habit on technology use, and reduce the effect of satisfaction on use. Study 2 showed that temptations strengthen the effect of habit on impulsive technology use, and weaken the effect of behavioral expectations on impulsive technology use. Hence, the results consistently support the notion that information technology users' behaviors are influenced by reflective and impulsive information processing systems; and that the equilibrium of these systems is determined, at least in part, by one's temptations. These results can serve as a basis for understanding the etiology of modern day addictions.
Over the last decade, researchers and practitioners have recommended a myriad of information and ... more Over the last decade, researchers and practitioners have recommended a myriad of information and communication technologies to operationalize the notion of a virtual enterprise. Among the business process transformations enabled through these new ...
This study illustrates the conceptual and statistical issues stemming from the use of nested, int... more This study illustrates the conceptual and statistical issues stemming from the use of nested, interdependent data in negotiation research. To this end, the nature and forms of interdependence are discussed, several models of interdependence are outlined, and methods for analyzing interdependent data are presented. Furthermore, an example using the actor–partner interdependence model is given. This discussion and example may provide
... Auctions become more exciting and competitive when similar items have close end times. Many a... more ... Auctions become more exciting and competitive when similar items have close end times. Many auctioneers believe they save money when cross-bidding within several auctions, which also encourages bidding frequency. As ...
Concepts, Methodologies, Tools, and Applications, 2009
Contractual Obligations Between Mobile Service Providers and Users (9781605660547): Robert Willis... more Contractual Obligations Between Mobile Service Providers and Users (9781605660547): Robert Willis, Alexander Serenko, Ofir Turel: Book Chapters.
Http Dx Doi Org 10 1080 03610911003615816, Apr 6, 2010
In this article we propose an improvement of the Kolmogorov-Smirnov test for normality. In the cu... more In this article we propose an improvement of the Kolmogorov-Smirnov test for normality. In the current implementation of the Kolmogorov-Smirnov test, given data are compared with a normal distribution that uses the sample mean and the sample variance. We propose to select the mean and variance of the normal distribution that provide the closest fit to the data. This is like shifting and stretching the reference normal distribution so that it fits the data in the best possible way. A study of the power of the proposed test indicates that the test is able to discriminate between the normal distribution and distributions such as uniform, bimodal, beta, exponential, and log-normal that are different in shape but has a relatively lower power against the student's, t-distribution that is similar in shape to the normal distribution. We also compare the performance (both in power and sensitivity to outlying observations) of the proposed test with existing normality tests such as Anderson–Darling and Shapiro–Francia.
Adults who present ADHD symptoms have an increased risk for vehicle accidents. One conceivable ov... more Adults who present ADHD symptoms have an increased risk for vehicle accidents. One conceivable overlooked account for this association is the possibility that people with ADHD symptoms use rewarding technologies such as social networking sites (SNS) while driving, more than others. The objective of this study was to understand if and how ADHD symptoms can promote SNS use while driving and specifically to conceptualize and examine mechanisms which may underlie this association. To do so, ADHD is viewed in this study as an underlying syndrome that promotes SNS use while driving in a manner similar to how addictive syndromes promote compulsive seeking of drug rewards. Time-lagged survey data regarding ADHD, stress, self-esteem, SNS craving experience, SNS use while driving, and control variables were collected from a sample of 457 participants who use a popular SNS (Facebook) and drive, after face-validity examination with a panel of five users and pretest with a sample of 47. These data were subjected to structural equation modeling (SEM) analyses using the frequency of ADHD symptoms measured with ASRS v1.1 Part A as a continuous variable, as well as multivariate analysis of variance using ADHD classification based on ASRS v1.1 scoring guidelines. ADHD symptoms promoted increased stress and reduced self-esteem, which in turn, together with ADHD symptoms, increased one's cravings to use the SNS. These cravings ultimately translated into increased SNS use while driving. Using the ASRS v1.1 classification, people having symptoms highly consistent with ADHD presented elevated levels of stress, cravings to use the SNS, and SNS use while driving, as well as decreased levels of self-esteem. Cravings to use the SNS among men were more potent than among women. SNS use while driving may be more prevalent than previously assumed and may be indirectly associated with ADHD symptoms. It is a new form of impulsive and risky behavior which is more common among people with symptoms compatible with ADHD than among others. Consistent with addiction and decision making models, SNS use while driving can be viewed as a form of a compensatory reward seeking behavior. As such, prevention and reduction interventions that target the mediating perceptions and states should be devised.
International Journal of Mobile Communications, Mar 20, 2015
The emergence of mobile value-added services has introduced a broad range of new use contexts, wh... more The emergence of mobile value-added services has introduced a broad range of new use contexts, which were not faced in the stationary PC environment. Thus, extant usability models need to be modified in order to capture this change. As such, this paper suggests ...
The existing literature on VC strategy is scarce. The reasons for such dearth of research on VC s... more The existing literature on VC strategy is scarce. The reasons for such dearth of research on VC strategy are seemingly that while VCs may occasionally comment on strategic issues (Gupta, 2005) and a few researchers have examined the subject (Robinson, 1987; King, 2008), we do not actually have a theory (or even a suitable taxonomy) explaining the differences in VC
Prior research has established the existence of numerous disagreements and conflicts in the VC-en... more Prior research has established the existence of numerous disagreements and conflicts in the VC-entrepreneur relationship (Sapienza, 1989; 1992; Gomez-Mejia et al., 1990; Ehrlich et al., 1994) that may be spurred by both parties’ opportunistic behavior negatively influencing perception of procedural justice (Sapienza and Korsgaard, 1996; Busenitz et al., 1998) and venture profitability (Higashide and Birley, 2002). Previous studies have not
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