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Can participants make use of the large number of response alternatives of visual analogue scales (VAS) when reporting their subjective experience of motion? In a new paradigm, participants adjusted a comparison according to random dot kinematograms with the direction of motion varying between 0° and 360°. After each discrimination response, they reported how clearly they experienced the global motion either using a VAS or a discrete scale with four scale steps. We observed that both scales were internally consistent and were used gradually. The visual analogue scale was more efficient in predicting discrimination error but this effect was mediated by longer report times and was no longer observed when the VAS was discretized into four bins. These observations are consistent with the interpretation that VAS and discrete scales are associated with a comparable degree of metacognitive sensitivity, although the VAS provides a greater amount of information.  相似文献   
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Unemployment, Social Capital, and Subjective Well-Being   总被引:2,自引:0,他引:2  
It has been shown in past research that unemployment has a large negative impact on subjective well-being of individuals. In this paper, I explore whether and to what extent people with more social capital are sheltered from the harmful effects of unemployment. Using data from the German Socio-Economic Panel 1984–2004, I find that social capital is an important predictor of well-being levels, but there is no evidence that it moderates the effect of unemployment on well-being. Possible reasons for these findings are discussed, and suggestions for future research given. This paper was written while I was visiting scholar at the W.E. Upjohn Institute for Employment Research in Kalamazoo, MI. I am grateful to the Institute for its hospitality, to Andrew Clark, Andrew Oswald and three anonymous referees for valuable comments, and to the German Socio Economic Panel Study (GSOEP) at the German Institute for Economic Research (DIW), Berlin, for providing the data.  相似文献   
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What’s human rights got to do with it? That is, what’s human rights got to do with the June 2004 report of the Social Sciences and Humanities Research Ethics Special Working Committee to the Inter-Agency Advisory Panel on Research Ethics. The disturbing answer is “not enough.” Certain key recommendations of the working committee, it is suggested, would unacceptably weaken the researcher’s legal and moral accountability to research participants. Those particular recommendations rely on misguided references to academic freedom and the nature of the non-medical research context. In fact, universal human rights, and the legal instruments in which they are embodied ought to inform the research endeavor at every stage; from problem selection to analysis and conclusions. This will lead us closer to shared truths rather than simply to the academic elite’s vision of truth. Without sufficient regard for the human rights of research participants academic freedom itself is not possible.  相似文献   
24.
Personality traits have been posited to function as stable influences on political attitudes and behavior. Although personality traits themselves exhibit high levels of temporal stability, it is not yet known whether the effects of these traits are marked by comparable temporal consistency. To address this question, this research note examines data from Wave 13 (2003–2004), Wave 15 (2005–2006) and Wave 17 (2007–2008) of the British Household Panel Survey (BHPS). Twenty‐seven behavioral and 14 attitudinal dependent variables are studied. Consistency of effects is gauged via a series of multilevel models in which personality effects are permitted to vary by year. High levels of temporal consistency are observed for personality traits as represented by the Big Five framework.  相似文献   
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While trans employees have become more widely recognized in society, our understanding of their work experiences remains underdeveloped. In the current study, we investigate whether transitioning is associated with job satisfaction in England, Wales and Scotland. Using longitudinal data collected before and after sex reassignment surgery associations between job satisfaction and mental health/life satisfaction are examined for trans men and women. The estimations suggest that employees experience higher job satisfaction, mental health and life satisfaction after sex reassignment surgery than before. In addition, the estimations suggest that after sex reassignment surgery, the associations between job satisfaction and mental health/life satisfaction are stronger than before. Moreover, the estimations suggest that employees not only experience higher job satisfaction after sex reassignment surgery, but also during transitioning. The results suggest that, firms should not treat transitioning employees in a biased way, since their transition might entail positive personal and workplace advancements.  相似文献   
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With the rapid development of human–machine interface (HMI) systems in vehicles, driving distraction caused by HMI displays affects road safety. This study presents a data mining technique to model the four driving distraction indicators: speed deviation, lane departure standard deviation, dwell time, and mean glance time. Driving distraction data was collected on a real-car driving simulator. 3 secondary tasks in 13 mass produced cars were tested by 24 drivers. The random forest algorithm outperformed linear regression, extreme gradient boosting, and multi-layer perceptron as the best model, demonstrating good regression performance as well as good interpretability. The result of random forest showed that the importance of target speed is large for all driving distraction indicators. Among the variables of interaction and user interface design, less step and less on-screen distance of finger movement are efficient for lowering lane departure standard deviation and dwell time. The position of right point is another important variable, and should be between 37 and 47 degrees on a typical sample in this study. A larger angle leads to bigger lane departure, while a smaller angle leads to bigger mean glance time. Most variables of HMI display positioning themselves are not important. This study provides one driving distraction assessment method with a variable impact trend analysis for HMI secondary tasks in an early phase of product development.  相似文献   
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Positive factors are increasingly recognized in the field of psychology, however, few studies have investigated the longitudinal measurement invariance (LMI) and reciprocal associations of positive core constructs, such as happiness, life satisfaction and positive mental health. This study evaluated the LMI of these constructs over four years in a Chinese Student Sample (n = 4400) using the Subjective Happiness Scale (SHS), the Satisfaction with Life Scale (SWLS) and the Positive Mental Health Scale (PMH-scale). The longitudinal reciprocal associations of the constructs were examined within a random intercept cross-lagged panel model (RI-CLPM). The results show that the SHS, SWLS and PMH-scale are measurement invariant over time and that the constructs are positively inter-related, but show different reciprocal patterns over time.  相似文献   
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Extreme learning machine (ELM) for random single-hidden-layer feedforward neural networks (RSLFN) has been widely applied in many fields in the past ten years because of its fast learning speed and good generalization performance. But because traditional ELM randomly selects the input weights and hidden biases, it typically requires high number of hidden neurons and thus decreases its convergence performance. It is necessary to select optimal input weights and hidden biases to improve the convergence performance of the traditional ELM. Generally, the single-hidden-layer feedforward neural networks (SLFN) with low input-to-output sensitivity will cause good robustness of the network, which may further lead into good generalization performance. Moreover, particle swarm optimization (PSO) has no complicated evolutionary operators and fewer parameters need to adjust, and is easy to implement. In this study, an improved ELM based on PSO and input-to-output sensitivity information is proposed to improve RSLFN’s convergence performance. In the improved ELM, PSO encoding the input to output sensitivity information of the SLFN is used to optimize the input weights and hidden biases. The improved ELM could obtain better generalization performance as well as improve the conditioning of the SLFN by decreasing the input-to-output sensitivity of the network. Finally, experiment results on the regression and classification problems verify the improved performance the proposed ELM.  相似文献   
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