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161.
162.
Judi E. Vanderhaar Marco A. Mu?oz Robert J. Rodosky 《Journal of Personnel Evaluation in Education》2006,19(1-2):17-33
In the current era of accountability for achievement, school principals play the pivotal role of instructional leader. In
a high-stakes testing environment, leadership preparation programs in universities and school districts need to be positively
related to academic outcomes. The purpose of this study was to examine the relationship between school leadership preparation
programs and student achievement in urban settings. Because leadership is contingent on the setting, school contextual factors
and their impact on student achievement framed this study. Regression techniques were employed to construct a conceptual model
with predictors of criterion and norm-referenced student achievement scores. Confirming previous research findings, student
poverty, teacher experience, and previous achievement were the strongest predictors and accounted for a significant amount
of variance in student achievement; however, university and district preparation programs were not significant predictors.
Implications for policy, practice, and future research are discussed. 相似文献
163.
Cristina Akiko Iizuka Welber Marinovic Afonso Antonio Machado Luiz Henrique Porto Vilani 《体育科研》2005,26(3):73-75
多维焦虑理论认为认知和躯体焦虑对运动成绩会产生不同的影响.根据这个理论,运动员在赛前具有较高的认知焦虑水平或躯体焦虑水平出现极端值(过高或过低)或自信心较低时,他们将取得较差的运动成绩.先前的研究还认为焦虑与运动成绩间的关系还取决于所要完成动作的特点.不同的运动技能有各自最佳的焦虑水平.总的来说,焦虑水平较高有利于完成体力消耗较大的运动项目.而焦虑水平较低时,则有利于完成精确类项目.就乒乓球项目而言,它既需要体力又需要精确性,因此,本研究调查分析了乒乓球运动员赛前焦虑水平与运动成绩间的关系.研究对象3 6名青少年乒乓球运动员,男、女运动员各1 8名,平均年龄为12.28±0.74岁.研究方法采用运动竞赛状态焦虑量表(CSAI-2C).让运动员在参加地区赛第一场比赛的赛前30分填写问卷.研究结果认知状态焦虑水平不能用来预测运动员的成绩.获胜运动员和失利运动员赛前的躯体状态焦虑和自信心没有差异.这表明本研究没有支持多维焦虑理论的假设,或许是乒乓球运动的特点和运动员的个体差异比运动员的焦虑水平对运动成绩的影响更大.因此,如果运动员的个人特点与他们的技术风格相适应,不同焦虑水平的运动员都可能取得好成绩. 相似文献
164.
165.
Marco Kalz Marcus Specht 《British journal of educational technology : journal of the Council for Educational Technology》2014,45(3):415-427
This paper deals with the assessment of the crossdisciplinarity of technology‐enhanced learning (TEL). Based on a general discussion of the concept interdisciplinarity and a summary of the discussion in the field, two empirical methods from scientometrics are introduced and applied. Science overlay maps and the Rao‐Stirling diversity index are used to analyze the TEL field with a scientometric analysis. The science overlay maps show that a wide variety of disciplines contributes to research in the field. The analysis reveals that the field has been operating on a relatively high level of crossdisciplinarity in the last 10 years compared with six other fields of reference. Only in 2004 a decrease in the level of crossdisciplinarity could be identified. 相似文献
166.
Listening to narrative material stimulates and activates multiple areas in the cerebral cortex. It has been shown that such activations produce significant changes in the connectivity of the brain. In literature, findings have shown that in pathological aging (i.e., cognitive decline) patients who underwent a daily narrative training showed some improvements in many psychological and cognitive aspects. Here we aim to investigate the effect of a narrative cognitive training in patients living in a nursing home, by testing them with a neuropsychological battery (RBANS – Randolph, 1998) before and during the training, after 40 days and then after 30 days from the beginning. Results were compared to a control group of patients and showed a significant increase in performances of the experimental group in different cognitive performances. This suggest that these types of trainings could be implemented as an effective non-pharmacological treatment for cognitive decline in the elderly. 相似文献
167.
Marco A. Muñoz Florence Chang Steven M. Ross 《Journal of Education for Students Placed at Risk》2013,18(3):186-200
This quantitative study evaluated the effects of Supplemental Educational Services (SES), a federally mandated component of No Child Left Behind, on student achievement in reading and mathematics. SES provides free tutoring outside school to disadvantaged students who attend Title I schools that are in their third year of failing to achieve adequate yearly progress on state assessments. Data from the fifth year of SES implementation in a large urban school were analyzed to determine if the mostly small and not statistically significant effects obtained in prior years were stronger as the tutoring services acquired additional refinement and maturity. A matched treatment-control group design was employed, in which students who received SES tutoring in reading, mathematics, or both were matched to similar schoolmates who were eligible for SES services but did not participate. Results showed consistently positive but small, not statistically significant, effect sizes for the outcome measures. Student achievement results and their implication for policy and practice are discussed. 相似文献
168.
Cristiane Teixeira Amaral Camargo Rossana Anelice Gomez-Campos Marco Antonio Cossio-Bolaños Vinicius Justino De Oliveira Barbeta Miguel Arruda 《Journal of sports sciences》2013,31(19):1790-1796
AbstractThe aim was to analyse the physical growth and body composition of rhythmic gymnastics athletes relative to their level of somatic maturation. This was a cross-sectional study of 136 athletes on 23 teams from Brazil. Mass, standing height and sitting height were measured. Fat-free and fat masses, body fat percentages and ages of the predicted peak height velocity (PHV) were calculated. The z scores for mass were negative during all ages according to both WHO and Brazilian references, and that for standing height were also negative for all ages according to WHO reference but only until 12 years old according to Brazilian reference. The mean age of the predicted PHV was 12.1 years. The mean mass, standing and sitting heights, body fat percentage, fat-free mass and fat mass increased significantly until 4 to 5 years after the age of the PHV. Menarche was reached in only 26% of these athletes and mean age was 13.2 years. The mass was below the national reference standards, and the standing height was below only for the international reference, but they also had late recovery of mass and standing height during puberty. In conclusion, these athletes had a potential to gain mass and standing height several years after PHV, indicating late maturation. 相似文献
169.
Matteo Dellepiane Nicolò Dell’Unto Marco Callieri Stefan Lindgren Roberto Scopigno 《Journal of Cultural Heritage》2013,14(3):201-210
Several new tools to obtain three-dimensional information from unorganized image sets are now available for the public use. The main advantage of this software, which is based on dense stereo matching, is the possibility to generate 3D content without the need of high-cost hardware (e.g. 3D scanning devices). Nevertheless, their use in real-world application domains (like cultural heritage) is still not very diffused, due to the non-straightforward usability of the raw data produced. In this paper, we investigate the use of automatic dense stereo reconstruction tools for the monitoring of an excavation site. A methodology for the effective acquisition and processing of data is presented. In addition, the results of the data assessment demonstrate the repeatability of the data acquisition process, which is a key factor when qualitative analysis is performed. The use of three-dimensional data is integrated in an open source mesh processing tool, thus showing that a spatio-temporal analysis can be performed in a very intuitive way using off-the-shelf or free/open digital tools. Moreover, the use of peculiar rendering and the creation of snapshots from arbitrary points of view increase the amount of documentation data, and suggest a perfect integration of data produced with dense stereo matching in the future standard documentation for excavation monitoring. 相似文献
170.
Marco Seeber 《Higher Education Quarterly》2020,74(2):162-175
The increasing availability of data on higher education systems, institutions and their members creates new opportunities for comparative research adopting a quantitative approach. The value of future studies crucially depends on the capability to recognise and address some major methodological challenges existing in quantitative comparative research in higher education. The higher education context presents in fact specific features that can hinder comparisons, and political and social processes occurred in recent decades further enhanced complexity. This article aims to discuss key challenges that are currently met in quantitative comparative research in higher education while developing the conceptual framework and in research operationalisation, to discuss possible solutions and the value of configurational and multilevel analytical approaches in identifying meaningful objects of comparisons, to take into account the complexity of the higher education context and in identifying causal relationships. 相似文献