Application of network meta-analysis in the field of physical activity and health promotion     

Xiwen Su  Daniel J. McDonough  Haitao Chu  Minghui Quan  Zan Gao 《运动与健康科学(英文)》2020,9(6):511-520

Continued advancement in the field of physical activity and health promotion relies heavily on the synthesis of rigorous scientific evidence. As such, systematic reviews and meta-analyses of randomized controlled trials have led to a better understanding of which intervention strategies are superior (i.e., produce the greatest effects) in physical activity-based health behavior change interventions. Indeed, standard meta-analytic approaches have allowed researchers in the field to synthesize relevant experimental evidence using pairwise procedures that produce reliable estimates of the homogeneity, magnitude, and potential biases in the observed effects. However, pairwise meta-analytic procedures are only capable to discerning differences in effects between a select intervention strategy and a select comparison or control condition. In order to maximize the impact of physical activity interventions on health-related outcomes, it is necessary to establish evidence concerning the comparative efficacy of all relevant physical activity intervention strategies. The development of network meta-analysis (NMA)—most commonly used in medical-based clinical trials—has allowed for the quantification of indirect comparisons, even in the absence of direct, head-to-head trials. Thus, it stands to reason that NMA can be applied in physical activity and health promotion research to identify the best intervention strategies. Given that this analysis technique is novel and largely unexplored in the field of physical activity and health promotion, care must be taken in its application to ensure reliable estimates and discernment of the effect sizes among interventions. Therefore, the purpose of this review is to comment on the potential application and importance of NMA in the field of physical activity and health promotion, describe how to properly and effectively apply this technique, and suggest important considerations for its appropriate application in this field. In this paper, overviews of the foundations of NMA and commonly used approaches for conducting NMA are provided, followed by assumptions related to NMA, opportunities and challenges in NMA, and a step-by-step example of developing and conducting an NMA.  相似文献   

The 1910 Edinburgh World Missionary Conference and comparative colonial education     

Felicity Jensz 《History of education》2018,47(3):399-414

In 1910 some 1200 delegates from Protestant missionary societies came together in Edinburgh, Scotland to attend a World Missionary Conference. In preparation for this event eight commissions were established to research various topics of importance to missionary societies. Commission III was dedicated to ‘Education in Relation to the Christianization of National Life’ and presented a volume of 470 pages as its report to the Conference based on over 200 responses to a list of questions under 14 broad topics. One of these topics pertained to the working relationship between missionaries and governments. This paper examines the discussion within the report regarding governmental attitudes to missionary education within colonial spaces. It provides a comparison between the aims of missionary education and the recorded experiences under various governments, particularly at times when they contrasted and conflicted. Taking a broadly comparative view, the paper shows the differences in concerns and objectives that various missionary bodies had in different colonial spaces, as well as the commonalities across colonial spaces in relation to governmental attitudes towards missionary education. This paper demonstrates the fruitfulness of a comparative approach to writing colonial histories of education, through elucidating both specificities and commonalities between different colonial education policies and practices.  相似文献   

Students’ achievement goals and beliefs of causes of success: Temporal relations and gender differences     

《Contemporary educational psychology》2021

According to the goal orientation model, students’ achievement goals and beliefs are interrelated. Within this framework, research and theory have so far assumed that achievement goals are associated with students’ beliefs of causes of success, the latter representing students’ subjective beliefs about the factors contributing to success at school. So far, this line of research has been restricted to a few cross-sectional studies. We examined the temporal relations between achievement goals (mastery, performance-approach, and performance-avoidance goals) and students’ beliefs of causes of success, the latter operationalized by asking the students to rate the subjective importance of diligence, effort, and ability for school success. Achievement goals and beliefs of causes of success were measured twice with a time lag of one school year with a sample of N = 2044 German secondary school students. Cross-lagged panel models were estimated to examine the temporal relations between achievement goals and beliefs of causes of success while controlling for students’ secondary school track, socio-economic status, and Grade Point Average. Former mastery goals were found to be positively related to later importance ratings of diligence for school success; former performance-approach goals were found to be positively related to later importance ratings of ability. Boys and girls were found to display similar relations among constructs but they showed differential mean levels on both the achievement goal constructs and the beliefs of causes of success. Implications for research on achievement goals and practice using intervention approaches are discussed.  相似文献   

Does service learning affect the development of intercultural sensitivity? A study comparing students’ progress in two different methodologies     

《Int J Intercult Relat》2021

Numerous studies have highlighted Intercultural Sensitivity (IS) as a key competence in an increasingly multicultural society. This study examined the extent to which a cohort of first year undergraduate students enrolled on the same Didactics course, and in two different training modalities – Service Learning (SL) and non-Service Learning (non-SL) – developed IS. It was based on a quasi-experimental design of repeated pre-test and post-test measures, comparing the two groups. The sample consisted of 233 Spanish students at higher education institutions, and data was collected using the Intercultural Development Inventory (IDI). The SL group displayed significantly higher levels of IS in all factors except in the denial/defence and minimization stages. Results indicated the effectiveness of SL regarding specific subscales within the IDI instrument. The findings add new depth to our understanding regarding which teaching methodologies contribute to the development of IS and to the training of active citizens in Spanish university students. The discussion focuses on the need for intercultural service experiences to promote IS. The results have broad implications for policymakers and educators who are interested in enhancing transformative educational experiences and effective teaching methodologies for developing students’ IS in higher education.  相似文献   

A new route towards more harmonious intergroup relationships in England? Majority members’ proximal-acculturation     

《Int J Intercult Relat》2021

Although the ways that immigrants relate to UK culture has been a hot topic since the EU-referendum, little attention has been given to how majority group members such as Host Country Nationals (HCNs) relate to immigrants’ culture. Thus, we explored English HCNs’ globalisation-based proximal-acculturation – the extent to which they prefer to adopt aspects of immigrants’ cultures and/or maintain their national culture. Using two-step cluster analysis, a pilot study (N = 63) revealed a separated, integrated, and undifferentiated cluster, with separated HCNs perceiving cultural diversity more as a threat and less as an enrichment. Using latent profile analysis in a second study (N = 220) also revealed a three strategy-solution, identifying assimilated, integrated and separated profiles. Again we examined how these strategies differed across perceptions of cultural threat and enrichment as well as other psychosocial characteristics: identifying with fellow English citizens, recognizing cultural differences whilst not being culturally embedded (constructive marginalization), and various forms of intergroup contact. Separated HCNs identified more with fellow English citizens, endorsed less constructive marginalization, perceived less cultural enrichment yet more cultural threat than HCNs following some of the other strategies. These results stress that the onus of cultural adoption lies with both groups – minorities and majority members – with English HCNs showing distinct proximal-acculturation strategies. Lastly, when exploring a variable-centred approach, proximal-acculturation orientations (cultural maintenance/adoption) mediated the relationship between cultural threat, cultural enrichment, and intergroup contact on positive feelings towards immigrants. Thus, the ways that HCNs acculturate may provide a new route towards harmonious intergroup relations.  相似文献   

Affordances of using Multiple Videoed Events to construct a rich understanding of adult–child book readings     

Maria Nicholas 《International Journal of Research & Method in Education》2018,41(2):125-141

This paper explores the affordances of using video-based research to capture a multiplicity of events, along with multimodal representations when producing data related to adult–child book readings. In doing this we answer two questions: (1) why more than one event is needed when seeking a comprehensive collection of information for the purpose of analysis; and (2) why one mode of data production alone (e.g. audio recordings or note taking) is insufficient to record practice or interviews when richness is of priority. This research used three videoed events to produce data. These included videoing: (1) caregiver–child interactions during four shared book reading sessions, (2) interviews with caregivers immediately following each of the reading sessions and (3) video-stimulated discussions with caregivers within two months of the final shared book reading. In this paper, I contribute to discussions that highlight the affordances of using video-based research as a means of capturing the multimodal elements of an experience, which can contribute to the analysis and interpretation of data. I expand on this, however, to suggest that when coupled with a multiplicity of events, video-based research can be a means of pursuing richness via a method that has been criticized for its narrow subjectivity.  相似文献   

Reconsidering the use of video clubs for student-teachers' learning during field placement: Lessons drawn from a longitudinal multiple case study     

《Teaching and Teacher Education》2018

Although video clubs have been used to support (student) teachers' learning through reflection upon practice, less attention has been paid to their potential use for supporting changes in participants' practice over a period of time. Prior work has also largely treated (student) teachers as an undifferentiated whole that benefits in similar ways from video clubs. In this study, we problematize this assumption by drawing on three cases of student teachers to exemplify three different learning paths while participating in a video club during field placement. Reflecting on these findings, we discuss implications for differentiating the video-club approach to address different student teachers.  相似文献   

Suggestions for the "Integration in Multiple Certificates" Curriculum System Construction     

赵平 《海外英语》2014,(14)

Business English professional "Integration in Multiple Certificates" refers to these two kinds of certificates——a diploma and vocational certificates. Business English curriculum design unified vocational qualification certificate with professional training objectives. Basis on the meeting of requirements of certificates for graduation, making professional training contents, curriculum,teaching methods together with vocational training and the requirements of professional qualification certificates.  相似文献   

网络关系构建及其对企业成长绩效影响研究          下载免费PDF全文

杨锐  夏彬 《科研管理》2016,37(5):103-111

企业成长受其构建的网络关系组合及所获网络资源的影响。结合资源基础观和组织间网络理论,本文构建网络关系-网络资源-集群企业成长的分析框架,基于苏州纺织业集群178家规模以上企业调查数据,建立联立方程并采用混合过程模型,实证集群内企业的成长绩效差异。研究表明,企业家认知和企业创新战略影响企业网络关系构建差异,并通过获取的网络资源影响企业成长绩效。具体说,分析型企业家和实施组合创新战略的企业有更高倾向构建企业间网络关系和非企业网络关系,且它们是互补关系组合;通过企业间网络关系获得的财务资源和信任,以及通过非企业网络关系获得的知识技术对集群企业成长有显著积极作用。  相似文献   

A case of IgA multiple myeloma: Nutritional perspective in diagnostic testing     

J. I. Anetor  F I Ajose  T. S Akingbola 《Indian journal of clinical biochemistry : IJCB》2005,20(1):193-197

A 64-year-old security guard and longstanding known hypertensive presented with hypertensive heart disease (HHD), weight loss, an enlarged prostate, and a spontaneously fractured rib. Malignancy of the prostate with possible metastases to the ribs was strongly suspected. Biochemical profiling revealed a paraprotein. Other biochemical and hematological correlates that were on hand before serum protein electrophoresis were rather atypical. Paraprotein studies by immunofixation revealed IgA myelomatosis. Unlike previous reports from Caucasians there was normocalcaemia, normal protein level, microcytic hypochromia, low MCHC, cholesterol level at the lower limit of the reference range and normal urea level (in the face of markedly raised creatinine level). Nutritional modulation of the classical laboratory features of this disease may account for the fairly atypical laboratory picture. The need to appreciate the influence of nutritional status on the laboratory (especially biochemical) features of a disease and thus interpretation of diagnostic tests appears of exceptional current importance, given the widening gap in socioeconomic status and the level of poverty between the resource poor and developed countries from which the classical, clinical and laboratory features of most diseases were first described. This case report reminds of the need not only to recognize theoretically the impact of nutritional status on the laboratory characteristics of a disease but of the practical application of the nutritional perspective in the interpretation of diagnostic investigations, especially in nutritionally disadvantaged communities.  相似文献