A genetic two-factor model of the covariation among a subset of Multidimensional Aptitude Battery and Wechsler Adult Intelligence Scale—Revised subtests

The phenotypic and genetic factor structure of performance on five Multidimensional Aptitude Battery (MAB) subtests and one Wechsler Adult Intelligence Scale—Revised (WAIS-R) subtest was explored in 390 adolescent twin pairs (184 monozygotic [MZ]; 206 dizygotic (DZ)). The temporal stability of these measures was derived from a subsample of 49 twin pairs, with test–retest correlations ranging from .67 to .85. A phenotypic factor model, in which performance and verbal factors were correlated, provided a good fit to the data. Genetic modeling was based on the phenotypic factor structure, but also took into account the additive genetic (A), common environmental (C), and unique environmental (E) parameters derived from a fully saturated ACE model. The best fitting model was characterized by a genetic correlated two-factor structure with specific effects, a general common environmental factor, and overlapping unique environmental effects. Results are compared to multivariate genetic models reported in children and adults, with the most notable difference being the growing importance of common genes influencing diverse abilities in adolescence.     

关于哲学的问题研究

“恰当地提出问题”对于哲学甚至比对于科学更为重要,它体现出哲学活动的特殊性质。提问开放新的视域。使我们超出习见,进入思考和对话。着重于提出问题而非构造理论,在今天可以被视为一种研究哲学的方式。当今时代给我们提出了大量需要研究的课题,也要求我们能够提出自己的问题。另一方面,20世纪哲学的自我批判,不仅使哲学的一些基本范畴被重新审视,它的探索方式乃至其功能与合法性根据也受到质询。对问题的研究已成为把握时代和探索哲学发展途径的入手处。     

Self-efficacy and successful school-to-work transition: A longitudinal study

A successful school-to-work transition is a precursor of promising career development. In the present longitudinal study we investigated whether academic self-efficacy beliefs and grades in school at the ages of 12-15 would be associated with unemployment and job satisfaction at the age of 21. We found that individuals with high self-efficacy beliefs and better grades were less likely to become unemployed and more likely to be satisfied with their jobs. The relationship between high self-efficacy and unemployment was mediated by higher career-related motivation and by less perceived application stress, measured at the time of vocational training at the age of 18. The relationship between self-efficacy and job satisfaction was primarily mediated by higher vocational congruence and less application stress. We conclude that school-based interventions targeted at increasing academic capabilities and self-efficacy would help prepare adolescents for a successful school-to-work transition.     

儿童对图画喻意理解的比较研究

本文针对儿童对图画中隐喻情绪的识辨和理解的发展特点 ,进行了跨文化研究。旨在探索儿童对图画喻意的敏感性的发展规律以及不同教育方式对儿童图画认知发展的影响。 3 60名 4岁到 2 0岁的中英被试参加了实验。结果表明 :在识辨作品任务及口头评价中 ,中国儿童比英国同龄儿童更早理解图画的情绪喻意 ,并很少对图画的悲伤喻意持忽略态度。提示不同文化背景下 ,儿童对图画喻意的理解存在发展上的不均衡性 ,中国的幼教方式也许促进了儿童对图画喻意理解的发展。     

Avoidance of 20% carbon dioxide-enriched air with humans.

Four college students were exposed to a Sidman avoidance procedure to determine if an avoidance contingency involving 20% carbon dioxide-enriched air (CO2) would produce and maintain responding. In Phase 1, two conditions (contingent and noncontingent) were conducted each day. These conditions were distinguished by the presence or absence of a blue or green box on a computer screen. In the contingent condition, CO2 presentation were delivered every 3 s unless a subject pulled a plunger. Each plunger pull postponed CO2 presentations for 10 s. In the noncontingent condition, CO2 presentations occurred on the average of every 5 min independent of responding. Following stable responding in Phase 1, condition-correlated stimuli were reversed. In both conditions, plunger response rate was high during the contingent condition and low or zero during the noncontingent condition. Furthermore, subjects avoided most CO2 presentations. However, CO2 presentations did not increase verbal reports of fear. Overall, the results from the present study suggest that CO2 can be used effectively in basic studies of aversive control and in laboratory analogues of response patterns commonly referred to as anxiety.     

The pitch of “real” and “rhetorical” questions directed by a father to his daughter: A longitudinal case study

A longitudinal study of a father and his daughter examined pitch-variation of “real” and “rhetorical” questions. Although the father asked “real” and “rhetorical” questions from the start of the recordings, he did not distinguish them through differential pitch height until the baby was 15 months old.     

Consequences and antecedents of debilitative precompetitive emotions

The consequences and antecedents of debilitative precompetitive emotions were examined in two studies. Study 1 explored the relationship between debilitative precompetitive emotions and coping effectiveness. Thirteen players from a semi-professional women's handball team filled out a diary concerning stress, emotion, and coping before and after eight competitions. Debilitative precompetitive emotions were linked negatively with coping effectiveness, as well as with subjective individual performance and objective team performance. Study 2 sought to understand the noncompetitive antecedents of debilitative precompetitive emotions. We interviewed nine players from those who participated in study 1. The main themes that emerged were the coach and the transition to elite status. According to this multi-methodological, in depth analysis, issues related to the coach and the transition to elite status lead athletes to experience precompetitive emotions that they appraise as debilitative to performance. These emotions were then linked to lowered coping effectiveness and decreased performance.     

Using hypnosis to model Fregoli delusion and the impact of challenges on belief revision

Fregoli delusion involves the belief that strangers are known people in disguise. We aimed to model aspects of this delusion for the first time using hypnosis. We informed hypnotised subjects that someone would enter the room (a confederate) and they would believe this person was someone they knew in disguise. After testing their reaction to the confederate, we challenged their delusion by directly contradicting their belief and then asking them to focus on the confederate’s voice and gait. Finally, we indexed whether they could identify photographs of the confederate. We found that just over half of our high hypnotisable subjects identified the confederate as someone they knew in disguise. Although many highs abandoned their belief in response to challenges, some maintained strong, unwavering conviction that the confederate was a known person. We discuss these findings in terms of how evidence might be evaluated during both hypnotic and clinical delusions.     

Too individualistic for safety culture? Non-traffic related work safety among heavy goods vehicle drivers

IntroductionThis article reports on a study of non-traffic related work safety among drivers of heavy goods vehicles in Denmark. In the heavy goods vehicle transport (HGV) sector only 6.4% of workplace accidents involving drivers are traffic related. HGV work is characterised by solitary work, as drivers tend to work at a physical distance from their own company and their working environment is also influenced by the working environment of other companies e.g. the places where they deliver goods. This study focuses on an analysis of HGV drivers’ and managers’ differentiated understandings of risk and safety and its management within an organisational context. The situational focus involves viewing HGV drivers’ working environment as a part of the organisational structure as well as of other social relationships. An understanding of safety culture as practice is applied with the view of identifying values and attitudes as well as organisational and technical aspects in relation to how individualist or collectivist understandings of risk and safety influence the working environment in HGVs.MethodThe study applied a mixed methods approach and in this article the qualitative interviews conducted with drivers and managers is the primary data source.ResultsThis study suggests a widespread understanding of drivers as being individually oriented in their work, from drivers and management alike. However, the study also demonstrates that, in conducting their work, the drivers are actually interdependent, and share knowledge frequently, albeit informally. The organisational structure of the company shapes their individual attitudes towards safety but they also report being dependent on relationships with, and information from, their fellow colleagues, former colleagues and friends who shape their understandings and attitudes towards hazards and safety practices. The analysis points to risk-taking and unsafe practices as prevalent among HGV drivers, who often refer to risk as trivial and the management of such risks as one’s own responsibility. Knowledge of how to manage risks in everyday practice is shown to be principally related to personal experiences but also to the good advice and examples of fellow drivers.ConclusionsThe analysis points to interdependent and collectivist practices among HGV drivers even though they are perceived as being individualistically oriented when it comes to safety. Therefore, non-traffic related safety practices, in this case the loading and unloading of vehicles, occur in the grey zone of organisational safety management. Despite the fact that organisational safety initiatives are initiated, the management sees limited possibilities for enforcing them and hence safety practice is often left to the individual driver.Practical applicationsA safety culture perspective might enhance work safety among HGV drivers if we are able to understand workplace culture in a pluralistic way. Collectivist practice among the drivers can be utilised in order to improve knowledge sharing and situational safety practices. The informal communication identified among the drivers might offer a new model for safety initiatives based on more collectivist, albeit informal, safety culture practices on behalf of HGV companies.