It is commonly accepted that what we ought to do collectively does not imply anything about each of us individually. According this line reasoning, if cooperating will make no difference an outcome, then you are morally required it. And be personally costly as well, even stronger reason However, reasoning results in a self-defeating, yet entirely predictable outcome. If everyone rational, one c...

The relationship between exposure to combat stressors and poorer postdeployment health is well documented. Still, some individuals are more psychologically resilient to such outcomes than others. Researchers have sought to identify the factors that contribute to resilience in order to inform resilience-building interventions. The present study assessed the criterion validity of a model of psych...

According to the Centers for Disease Control and Prevention (CDC), 25 percent of people living with HIV in the United States in 2006 were age 50 and older. HIV prevention for people over 50 is an important health concern, especially as the U.S. population grows older. Scholarly research has identified the need for HIV/AIDS interventions in the population of people over age 50, but few intervent...

Administering items or subscales separately from the measure for which they were designed to be a part may have unintended consequences for research and practice in Parkinson's disease (PD). The current study tested the equivalence of the bradykinesia subscale when administered alone versus as a component of the full 14-item Unified Parkinson's Disease Rating Scale (UPDRS) motor examination, as...

Although it is important to consider multi-day activities in transportation planning, multi-day activity-travel data are expensive to acquire. In this study, we propose to generate multi-day activity-travel data through sampling from readily available single-day household travel survey data with considerations of day-to-day intrapersonal variability. One of the key observations we make is that ...

Rates of deliberate non-suicidal self-injury (NSSI) increase during adolescence and young adulthood, particularly in clinical samples, making these important developmental stages for understanding the functions of NSSI. Borderline Personality Disorder (BPD) symptoms also begin to emerge in adolescence, though little research has examined relationships between BPD symptoms and the functions of N...

OBJECTIVE This study applied a multi-method approach to examine the relationship between body mass index (BMI) and the experience of victimization during adolescence by investigating the role of intrapersonal feelings. METHODS The sample consisted of 2051 adolescents (M=13.8 years, S.D.=0.7; 51% male) from seven high schools in the Netherlands. Participants' weight and height were measured an...

BACKGROUND The illicit use of prescription stimulants (IUPS) has emerged as a high-risk behavior of the 21st century college student. As the study of IUPS is relatively new, we aimed to understand (1) characteristics of IUPS (i.e., initiation, administration routes, drug sources, motives, experiences), and (2) theory-guided intrapersonal, interpersonal, and environmental correlates associated w...

OBJECTIVE Theories of health behavior are usually tested on the between-person level. Associations between variables on the between- and the within-person level, however, can differ substantially. Thus, in order to better understand intrapersonal processes in the domain of health behavior, studies applying within-person analyses are needed. This study tested the Health Action Process Approach (...

This study aims to investigate the impact of interpersonal self‐awareness, self‐confidence, and self‐ discipline, as well as intrapersonal empathy, optimism, and social responsibility‐ emotional intelligence (EI) dimensions on technology learning process levels (TLP). An empirical study with a questionnaire, was conducted on 124 voluntary respondents from 10 IT organizations...