Valid representation of a highly dynamic collision avoidance scenario in a driving simulator

In Germany the second-most frequent accidents in road traffic are rear-end collisions. For this reason rear-end collisions are quite important for accident research and the development of driving safety systems. To examine the functionality and to design the human–machine-interface of new driving safety systems, especially in the early development phase, subject tests are necessary. Because of the great hazard potential of such safety critical scenarios for the test persons, they are often conducted in a driving simulator (DS). Accordingly, validity is an important qualification to ensure that the findings collected in a simulated test environment can be directly transferred to the real world.This paper regards the question of driving behavior validity of DS in critical situations. There are hardly any validation studies which analyze the driving behavior in a specific collision avoidance situation.The validation study described in this paper aims to evaluate the behavioral validity of a fixed-base simulator in a collision avoidance situation. For this reason a field study from 2007 was replicated in a fixed-base simulator environment.The main questions of this validation study were if the driver can notice an active hazard braking system and if the driving behavior in a static simulator can be valid in such a critical situation.The key finding of the study states that there is no driving behavior validity in a static driving simulator for the tested dynamic scenario. The missing vestibular feedback causes a different behavior of the participants in field and simulator. The resulting absence of comparability leads to non-valid performance indicators. But these indicators are key parameters for analyzing the function and acceptance of active braking systems. So the question arises, which motion performance does a motion base have to provide in order to achieve valid acceleration simulation of such a highly dynamic collision avoidance scenario. The DS’s performance is measured in workspace, velocity and acceleration.     

The Academic Advantage of Devotion: Measuring Variation in the Value of Weekly Worship in Late Adolescence on Educational Attainment Using Propensity Score Matching

This study measures the effect of regular worship attendance at age 17 on total years of schooling by age 25, using data from the National Longitudinal Survey of Youth 1997. Expanding on previous work, this study estimates differences in the impact of worship attendance by race and family income status using propensity score matching. Individuals who frequently attend religious services complete .69 more years of schooling than similar individuals who do not frequently attend services. There are significantly greater returns to attendance for low‐income youth and no significant difference in returns by religious affiliation. These findings suggest that religious observance provides greater benefits for low‐income individuals or perhaps provides resources high‐income individuals have access to elsewhere. Moreover, this study extends previous work by examining a more recent and nationally representative sample of youth and by using methods that allow for greater causal inference.     

Experiential avoidance as a generalized psychological vulnerability: comparisons with coping and emotion regulation strategies

Extending previous work, we conducted two studies concerning the toxic influences of experiential avoidance (EA) as a core mechanism in the development and maintenance of psychological distress, and disruption of pleasant, engaging, and spontaneous activity. Of particular interest was whether EA accounted for relationships between coping and emotion regulation strategies on anxiety-related pathology (Study 1) and psychological distress and hedonic functioning over the course of a 21-day monitoring period (Study 2). In Study 1, EA mediated the effects of maladaptive coping, emotional responses styles, and uncontrollability on anxiety-related distress (e.g., anxiety sensitivity, trait anxiety, suffocation fears, and body sensation fears). In Study 2, EA completely mediated the effects of two emotion regulation strategies (i.e., suppression and reappraisal) on daily negative and positive experiences and was associated with diminished daily positive affective experiences and healthy life appraisals, diminished frequency of positive events and more frequent negative life events, and greater negative affective experiences. The present data show that cognitive reappraisal, a primary process of traditional cognitive-behavior therapy, was much less predictive of the quality of psychological experiences and events in everyday life compared with EA. Further consideration of experiential avoidance as a generalized diathesis and toxic process will be useful in improving our understanding of the etiology, phenomenology, and treatment of anxiety conditions, general human suffering, and disruptions in hedonic capacity.     

初中生学业延迟满足的发展特点及其相关因素研究

用问卷法对194名初中生学业延迟满足的特点及相关因素进行了研究。结果表明:初中学生的学业延迟满足存在年级和性别差异,初二和初三学生的学业延迟满足水平明显低于初一学生,女生比男生的学业延迟满足能力高。课堂目标结构与学业延迟满足有显著关系,任务取向的课堂目标与学业延迟满足呈正相关关系;自我取向的课堂目标与学业延迟满足呈负相关关系。任务价值、自我效能与学业延迟满足呈正相关关系,学业延迟满足与学业成绩呈正相关关系。     

The Theory of Planned Behavior as a Model of Academic Dishonesty in Engineering and Humanities Undergraduates

This study examines the use of a modified form of the theory of planned behavior in understanding the decisions of undergraduate students in engineering and humanities to engage in cheating. We surveyed 527 randomly selected students from three academic institutions. Results supported the use of the model in predicting ethical decision-making regarding cheating. In particular, the model demonstrated how certain variables (gender, discipline, high school cheating, education level, international student status, participation in Greek organizations or other clubs) and moral constructs related to intention to cheat, attitudes toward cheating, perceptions of norms with respect to cheating, and ultimately cheating behaviors. Further the relative importance of the theory of planned behavior constructs was consistent regardless of context, whereas the contributions of variables included in the study that were outside the theory varied by context. Of particular note were findings suggesting that the extent of cheating in high school was a strong predictor of cheating in college and that engineering students reported cheating more frequently than students in the humanities, even when controlling for the number of opportunities to do so.     

Imitation Is the Sincerest Form of Cheating: The Influence of Direct Knowledge and Attitudes on Academic Dishonesty

What effect does witnessing other students cheat have on one's own cheating behavior? What roles do moral attitudes and neutralizing attitudes (justifications for behavior) play when deciding to cheat? The present research proposes a model of academic dishonesty which takes into account each of these variables. Findings from experimental (vignette) and survey methods determined that seeing others cheat increases cheating behavior by causing students to judge the behavior less morally reprehensible, not by making rationalization easier. Witnessing cheating also has unique effects, controlling for other variables.     

An Examination of Academic Misconduct Intentions and the Ineffectiveness of Syllabus Statements

This experiment uses quantitative and qualitative measures to address the effect of two syllabus statements on academic misconduct: one based on prohibitions and one on academic integrity. Students expressed favorable attitudes toward the statements, showed an increase in guilt compared to a control group, but showed no decrease in intentions to cheat. Including only a standard academic misconduct statement in one's syllabus is not sufficient to alter behavior, which should be acknowledged by faculty.     

Scholars’ preferred solutions for research misconduct: results from a survey of faculty members at America’s top 100 research universities

Research misconduct is harmful because it threatens public health and public safety, and also undermines public confidence in science. Efforts to eradicate ongoing and prevent future misconduct are numerous and varied, yet the question of “what works” remains largely unanswered. To shed light on this issue, this study used data from both mail and online surveys administered to a stratified random sample of tenured and tenure-track faculty members (N = 613) in the social, natural, and applied sciences at America’s top 100 research universities. Participants were asked to gauge the effectiveness of various intervention strategies: formal sanctions (professional and legal), informal sanctions (peers), prevention efforts (ethics and professional training), and reducing the pressures associated with working in research-intensive units. Results indicated that (1) formal sanctions received the highest level of support, (2) female scholars and researchers working in the applied sciences favored formal sanctions, and (3) a nontrivial portion of the sample supported an integrated approach that combined elements of different strategies. A key takeaway for university administrators is that a multifaceted approach to dealing with the problem of research misconduct, which prominently features enhanced formal sanctions, will be met with the support of university faculty.     

The Impact of Leadership Style on Moral Identity and Subsequent In-Role Performance: A Moderated Mediation Analysis

This study investigated the impact of supervisors’ servant leadership (i.e., leadership that starts with a leader who wants to serve) on supervisees’ moral identity and subsequent in-role performance. Data from 226 supervisor–supervisee dyads were collected from several domestic and multinational companies operating in the Kingdom of Saudi Arabia. Confirmatory factor analysis was conducted to confirm the factorial validity of the measures that were employed in this study. The hypothesized moderated mediation model was tested using hierarchical multiple regression analysis. Based on social learning theory, the results showed that supervisees’ moral identity served as the psychological mediating mechanism through which supervisors’ servant leadership led to supervisees’ increased in-role performance. Furthermore, the results also supported supervisees’ avoidance orientation as the dispositional boundary condition of this mediating effect. This study contributes to both the servant leadership and moral identity literatures by addressing questions with useful theoretical and managerial implications.