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The present study investigated the genetic and environmental covariance between psychopathic personality traits with reactive and proactive aggression in 9- to 10-year-old twins (N = 1,219). Psychopathic personality traits were assessed with the Child Psychopathy Scale (D. R. Lynam, 1997), while aggressive behaviors were assessed using the Reactive Proactive Questionnaire (A. Raine et al., 2006). Significant common genetic influences were found to be shared by psychopathic personality traits and aggressive behaviors using both caregiver (mainly mother) and child self-reports. Significant genetic and nonshared environmental influences specific to psychopathic personality traits and reactive and proactive aggression were also found, suggesting etiological independence among these phenotypes. Additionally, the genetic relation between psychopathic personality traits and aggression was significantly stronger for proactive than reactive aggression when using child self-reports. 相似文献
124.
Russell A. Chapman Stanley B. Baker Sylvia C. Nassar‐McMillan Edwin R. Gerler Jr. 《Counselor Education & Supervision》2011,50(5):298-313
The authors used an intensive single‐subject quantitative design to examine cybersupervision of counseling practicum students in a university setting. Five female supervisees volunteered to receive their required weekly supervision online during a 14‐week, semester‐long counseling practicum. Following a face‐to‐face orientation meeting, all remaining interactions among the supervisees and with the supervisor occurred electronically. Data were collected about the utility of the synchronous and asynchronous modalities, changes in supervisee competence and confidence during the practicum, and supervisee attitudes about the cybersupervision approach. The findings offered evidence that the web‐based modality could be used in similar settings. 相似文献
125.
Unique cross-national data on adolescents’ civic skills, knowledge, and political attitudes are used to examine the democratic processes of modern mass schooling, effects of national political systems, and patterns of youth political socialization in 27 nations. Compared to the generally weak reported effects on mathematics and reading achievement, we find robust effects of schooling on youths’ civics knowledge, skills, and attitudes. Secondly, there is empirical support for the importance of a supra-national political culture, beyond that of unique national cultures, in the political socialization of youth. Lastly, there is evidence of an emerging common polity among youth across nations. The results extend notions of the institutional influence of mass public schooling on the political socialization of youth. 相似文献
126.
Espin CA Cevasco J van den Broek P Baker S Gersten R 《Journal of learning disabilities》2007,40(2):174-182
In this study, we examine the nature and quality of students' comprehension of history. Specifically, we explore whether cognitive-psychological theories developed to capture the comprehension of narrative text can be used to capture the comprehension of history. Participants were 36 students with learning disabilities who had taken part in an earlier study designed to investigate the effects of an interactive instructional intervention in history. The results of the original study supported the effectiveness of the intervention in terms of amount recalled. The results of the present study reveal that historical understanding can be characterized as the construction of meaning through the creation of a causal network of events. The study of history within a causal network framework has implications for understanding the nature and quality of students' learning of history, and for potentially identifying sources of failure in learning. 相似文献
127.
Left-handed performers seem to enjoy an advantage in interactive sports. Researchers suggest this is predominantly due to the relative scarcity of left-handers compared with right-handers. Such negative frequency-dependent advantages are likely to appear in inefficient game-play behaviour against left-handed opponents such as reduced ability to correctly anticipate left-handers' action intentions. We used a pre-post retention design to test whether such negative frequency-dependent perceptual effects can be reversed via effective training. In a video-based test, 30 handball novices anticipated the shot outcome of temporally occluded handball penalties thrown by right- and left-handed players. Between the pre- and post-tests, participants underwent a perceptual training programme to improve prediction accuracy, followed by an unfilled retention test one week later. Participants were divided into two hand-specific training groups (i.e. only right- or left-handed shots were presented during training) and a mixed group (i.e. both right- and left-handed shots were presented). Our results support the negative frequency-dependent advantage hypothesis, as hand-specific perceptual training led to side-specific improvement of anticipation skills. Similarly, findings provide experimental evidence to support the contention that negatively frequency-dependent selection mechanisms contributed to the maintenance of the handedness polymorphism. 相似文献
128.
Jaeki Song Jeff Baker Sangno Lee James C. Wetherbe 《International Journal of Information Management》2012
Retailers’ websites are an important interface between retailers and their customers. The various features and elements that retailers include on their websites play a critical role in attracting customers and ensuring their satisfaction with the online shopping process. By conducting a three-phased study, we identify how the elements of a website shape customers’ salient beliefs. These salient beliefs, in turn, determine the level of customers’ satisfaction with the website. This study provides both theoretical insights into the beliefs of online shoppers and practical insights for retail website operators. Specifically, we argue that when retail websites are constructed to include several specific elements that appeal to the key salient beliefs of information quality, service quality, and system quality, retailers will increase customers’ satisfaction with the online shopping process. 相似文献
129.
John Baker 《British Journal of Special Education》2009,36(4):191-197
This article is based on empirical research undertaken by John Baker, headteacher of the largest day special school for pupils with a range of learning difficulties in Essex, as part of his EdD studies at the Institute of Education, University of London. Its focus is on the perceived challenges and opportunities which headteachers of special schools for pupils with learning difficulties and disabilities (LDD) are facing and on the strategies they are using to manage these challenges and opportunities. A group of nine head teachers from one local authority in the southern half of England formed the sample for this study. The methodology employed postal/email questionnaires with follow‐up semi‐structured interviews with a subgroup of four headteachers. The main challenges identified by the special school headteachers were constant change, relentless school improvement, funding concerns, bureaucracy and maintaining a balance between work and private life. Perceived opportunities included partnership links with other schools and outreach services to mainstream schools; other initiatives such as specialist school status and Building Schools for the Future were also identified. John Baker suggests strategies to help headteachers meet these challenges and ensure that opportunities become realities. 相似文献
130.