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31.
Two well-known lower bounds to the reliability in classical test theory, Guttman's 2 and Cronbach's coefficient alpha, are shown to be terms of an infinite series of lower bounds. All terms of this series are equal to the reliability if and only if the test is composed of items which are essentially tau-equivalent. Some practical examples, comparing the first 7 terms of the series, are offered. It appears that the second term (2) is generally worth-while computing as an improvement of the first term (alpha) whereas going beyond the second term is not worth the computational effort. Possibly an exception should be made for very short tests having widely spread absolute values of covariances between items. The relationship of the series and previous work on lower bound estimates for the reliability is briefly discussed.The authors are obliged to Henk Camstra for providing a computer program that was used in this study. 相似文献
32.
Changes in the parental bond and the well-being of adolescents and young adults were investigated in this longitudinal study among Dutch youngsters aged 12 to 24 years (their ages ranged from 15 to 27 years when they were assessed for the second time three years later, and from 18 to 30 years when assessed for the third time). A total of 1,078 adolescents/young adults (459 males and 619 females) participated. We found a curvilinear pattern in the bond between daughters and their parents. For most of the boys, there was a deterioration in the parental bond during the transition from early to midadolescence, which does not subsequently improve. The general conclusion, however, is that adolescents and young adults maintain a rather good and reasonably stable relationship with their parents. Parents prove to be of lasting importance for the well-being of their growing children. For adult children, the parental bond appears to be as important for their well-being as having a partner or a best friend. 相似文献
33.
On programming KARO agents 总被引:1,自引:0,他引:1
Meyer J-J; de Boer F; van Eijk R; Hindriks K; van der Hoek W 《Logic Journal of the IGPL》2001,9(2):245-256
34.
F.S. de Boer K.V. Hindriks W. van der Hoek J.-J.Ch. Meyer 《Journal of Applied Logic》2007,5(2):277-302
A long and lasting problem in agent research has been to close the gap between agent logics and agent programming frameworks. The main reason for this problem of establishing a link between agent logics and agent programming frameworks is identified and explained by the fact that agent programming frameworks have hardly incorporated the concept of a declarative goal. Instead, such frameworks have focused mainly on plans or goals-to-do instead of the end goals to be realised which are also called goals-to-be. In this paper, the programming language GOAL is introduced which incorporates such declarative goals. The notion of a commitment strategy—one of the main theoretical insights due to agent logics, which explains the relation between beliefs and goals—is used to construct a computational semantics for GOAL. Finally, a proof theory for proving properties of GOAL agents is introduced. Thus, the main contribution of this paper, rather than the language GOAL itself, is that we offer a complete theory of agent programming in the sense that our theory provides both for a programming framework and a programming logic for such agents. An example program is proven correct by using this programming logic. 相似文献
35.
Theo A. Boer 《The Journal of religious ethics》2007,35(3):529-555
During the past four decades, the Netherlands played a leading role in the debate about euthanasia and assisted suicide. Despite the claim that other countries would soon follow the Dutch legalization of euthanasia, only Belgium and the American state of Oregon did. In many countries, intense discussions took place. This article discusses some major contributions to the discussion about euthanasia and assisted suicide as written by Nigel Biggar (2004) , Arthur J. Dyck (2002) , Neil M. Gorsuch (2006) , and John Keown (2002) . They share a concern that legalization will undermine a society's respect for the inviolability and sanctity of life. Moreover, the Report of the House of Lords Select Committee on the Assisted Dying for the Terminally Ill Bill (2005) is analyzed. All studies use ethical, theological, philosophical, and legal sources. All these documents include references to experiences from the Netherlands. In addition, two recent Dutch documents are analyzed which advocate further liberalization of the Dutch euthanasia practice, so as to include infants (Groningen Protocol, NVK 2005 ) and elderly people “suffering from life” (Dijkhuis Report, KNMG 2004 ). 相似文献
36.
Jelle de Boer 《Philosophical Psychology》2014,27(5):703-718
This paper focuses on a particular method which is used in contemporary empirical happiness studies, namely measuring people's happiness by scoring their emotions (Kahneman is a prominent scholar). I examine the presupposition in this field that emotion scores can be added or subtracted, that throughout affective space runs a straight axis that plots hedonic tone or pleasure. 相似文献
37.
38.
Motivational Basis of Personality Traits: A Meta‐Analysis of Value‐Personality Correlations
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We investigated the relationships between personality traits and basic value dimensions. Furthermore, we developed novel country‐level hypotheses predicting that contextual threat moderates value‐personality trait relationships. We conducted a three‐level v‐known meta‐analysis of correlations between Big Five traits and Schwartz's (1992) 10 values involving 9,935 participants from 14 countries. Variations in contextual threat (measured as resource threat, ecological threat, and restrictive social institutions) were used as country‐level moderator variables. We found systematic relationships between Big Five traits and human values that varied across contexts. Overall, correlations between Openness traits and the Conservation value dimension and Agreeableness traits and the Transcendence value dimension were strongest across all samples. Correlations between values and all personality traits (except Extraversion) were weaker in contexts with greater financial, ecological, and social threats. In contrast, stronger personality‐value links are typically found in contexts with low financial and ecological threats and more democratic institutions and permissive social context. These effects explained on average more than 10% of the variability in value‐personality correlations. Our results provide strong support for systematic linkages between personality and broad value dimensions, but they also point out that these relations are shaped by contextual factors. 相似文献
39.
This prospective study, using the Theory of Planned Behaviour (TPB) as a theoretical framework, was carried out to identify the determinants of repeat attendance and attendance patterns in organised breast screening. A group of 2657 women filled out a baseline questionnaire, approximately 8 weeks after having been invited for an initial screening in the Dutch Breast Cancer Screening Programme. Data on actual attendance in second and third screening round were subsequently collected. Personal variables such as family history of breast cancer, breast cancer in someone close and fear of breast cancer were not related to repeat attendance. The TPB variables could explain approximately 17% of the variance in attendance in the second and third round. Maintenance behaviour (consistent attendance vs. dropout) was related to the TPB variables, but the amount of variance explained was only 6%. Initiation of behaviour (consistent refusal vs. delayed attendance) also was related to TPB variables, with a substantially higher amount of explained variance than with maintenance behaviour. Results indicate that the TPB variables are more related to the initiation of screening behaviour than to the maintenance of screening behaviour. Implications of these findings for breast cancer screening are discussed. 相似文献
40.
Frits Kluytmans Marlies Ott 《European Journal of Work and Organizational Psychology》2013,22(2):261-272
This article explores the question how companies can create a different basis for security for their employees now that job security has increasingly become a thing of the past? An answer to this question is to create a new secure base by developing the employability of workers by sustaining and developing opportunities for work in the future. Promoting employability is part of a new psychological contract between employer and employee, whereby both are responsible for maintaining the employment situation. The employability of employees is determined by their actual know-how and skills; their willingness to be mobile and their knowledge of the labour market. Although the development of employability is not only a matter for labour organizations (branch organizations, the government, and employers' representatives and unions have to do their part too), we focus primarily on the policy that organizations can set out. Policymakers have to answer the following questions: (1) Is it necessary to develop the external or internal employability of employees? (2) For which category is it in particular necessary? (3) If employability does not take place automatically, is this because employees do not want this, or because they cannot do this? Or is it restricted by organizational aspects? Each of these questions will be discussed in this article. 相似文献