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111.
Av Hans‐Jørgen Dokka 《Scandinavian Journal of Educational Research》2013,57(1):135-151
Gill, P. E. 1976. The Relationship Between Mental Ability and Eight Background Variables. Scand. J. educ. Res. 20, 135‐145. Multiple regression is seen as a search technique when applied to IQ. test data. The results from such a search are stochastic rather than deterministic. Because of this it is imperative that comprehensive samples be studied. The sample in this study (n = 3,695) was representative of the population of Irish 6‐ to 12‐year‐olds. The results are surprising in that the total variance explained by predictors such as SES, sex, family size, position in family, absenteeism and urbanity is never more than 8 %. Differences in how predictors behave with IQ and Vocabulary are noted. SES, family size and urbanity are the most significant predictors. When Vocabulary is the criterion, sex differences (in favour of girls) emerge consistently. It is contended that pupils of low intelligence go absent more often than their peers. The total variance explained was increased when homoscedasticity was reduced by stabilizing criterion variance (by reducing age span). 相似文献
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This article considers the counter-intuitive observation that some of the wealthiest nations can feature low tertiary graduation rates (e.g. Austria, Germany, and Switzerland). It also considers the observation that many countries with high tertiary graduation rates show low levels of social equity, while many countries with low tertiary graduation rates show high levels of social equity. These observations are considered through the lenses of institutional perspectives, and specifically welfare and production régime theories. The analysis elaborates on educational attainment, patterns and key aspects of economic functioning and development, and educational attainment patterns and their relationship to social inequality. 相似文献
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Sixten Marklund Franz Hilker Marjorie L. Jenkins Franklin Parker Gustav Jahoda M. J. Langeveld Karl Henrik Eriksson Nicholas Hans Gilbert de Landsheere Leslie D. Mclean J. Cambon A. St. Langeland S. Wiegersma Richard F. Goodings J. B. Biggs 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》1966,12(2):221-251
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Hans C. von Lieres und Wilkau Gareth Irwin Neil E. Bezodis Scott Simpson Ian N. Bezodis 《Sports biomechanics / International Society of Biomechanics in Sports》2020,19(2):141-156
AbstractThe aim of this study was to investigate spatiotemporal and kinematic changes between the initial acceleration, transition and maximum velocity phases of a sprint. Sagittal plane kinematics from five experienced sprinters performing 50-m maximal sprints were collected using six HD-video cameras. Following manual digitising, spatiotemporal and kinematic variables at touchdown and toe-off were calculated. The start and end of the transition phase were identified using the step-to-step changes in centre of mass height and segment angles. Mean step-to-step changes of spatiotemporal and kinematic variables during each phase were calculated. Firstly, the study showed that if sufficient trials are available, step-to-step changes in shank and trunk angles might provide an appropriate measure to detect sprint phases in applied settings. However, given that changes in centre of mass height represent a more holistic measure, this was used to sub-divide the sprints into separate phases. Secondly, during the initial acceleration phase large step-to-step changes in touchdown kinematics were observed compared to the transition phase. At toe-off, step-to-step kinematic changes were consistent across the initial acceleration and transition phases before plateauing during the maximal velocity phase. These results provide coaches and practitioners with valuable insights into key differences between phases in maximal sprinting. 相似文献
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Disaster marathon was proposed by media communication scholars to differentiate the genre of disaster television broadcasting from media events. However, its theoretical framework is limited by its omission of findings from disaster social science literature, and its lack of examinations of marathons of domestic natural disasters. Using the August 2014 Yunnan (China) Television Station broadcast The Special Report on the August 3 Earthquake in Ludian, Yunnan, we conduct a qualitative content analysis to empirically examine the disaster marathon concept for natural disasters. During the content analysis, three themes emerge: authorities’ command and control, the involvement of armed forces, and convergence of social support. Our case study findings contradict the disaster marathon conceptualization and conclude that the local television coverage following a natural disaster can also be performed as a series of conventional media events and is consistent with the established disaster coverage literature. 相似文献