Testing Inequality Constrained Hypotheses in SEM Models     

Rens van de Schoot  Herbert Hoijtink  Maja Deković 《Structural equation modeling》2013,20(3):443-463

Researchers often have expectations that can be expressed in the form of inequality constraints among the parameters of a structural equation model. It is currently not possible to test these so-called informative hypotheses in structural equation modeling software. We offer a solution to this problem using Mplus. The hypotheses are evaluated using plug-in p values with a calibrated alpha level. The method is introduced and its utility is illustrated by means of an example.  相似文献   

Towards new learning environments—Collective civic actions as learning interventions in post-Communist Belgrade     

Katarina Popović  Maja Maksimović  Aleksa Jovanović 《European Journal of Education》2018,53(3):365-376

This article focuses on the social dimension of well-being, based on a critical analysis of the way it is conceptualised in late capitalism: As the dimensions of individual state of mind and body, something that evolves in the individual realm, stressing personal responsibility and achievement of well-being as a solitary act. Then, the contemporary conceptualisation and approaches to policy making for well-being are compared with the policy of adult and youth education and learning. The perspective of a strong individual orientation, detachment from the social, community and collective aspects and efforts seem to be a common denominator. Agency is considered not only as a possibility for individuals to create and change the environment, but also as a process of active co-construction of social reality. This includes (re)connection with a community, very often through new ways of community learning, civic actions and civic activities. An analysis of how these perspectives converge in civic interventions in urban areas of Belgrade places togetherness at the core of the broader approach to well-being and learning. This article presents several examples of civic activities in urban spaces whose learning character is interpreted within the concept of public pedagogy. The examples presented prevail in the post-Communist countries because public spaces as zones of civic interventions can oppose the controlling authority and through the fight for human and civil rights represent the bottom line of togetherness and collective agency. Learning through collective civic actions thus provides new ways of understanding well-being.  相似文献   

Authors from the periphery countries choose open access more often          下载免费PDF全文

Witold Kieńć 《Learned Publishing》2017,30(2):125-131

This article analyses attitudes of academic authors toward open access (OA) and the frequency of choosing OA publication venues. The research looks particularly at differences between authors based in countries with a gross domestic product per capita less or greater than US$18,000 (called periphery and core countries, respectively). The data were obtained with an online survey sent to 107,296 scholars listed on the mailing lists belonging to De Gruyter Open from December 2015 to January 2016. A total of 1,012 responses were received. Authors from the periphery countries publish their articles in gold OA more often and they also pay OA publication fees equally often as those based in the core countries. The reasons for that are complex, involving both their preference to publish in OA and the composition of the publishing market in the periphery.  相似文献   

Cytocompatible cellulose nanofibers from invasive plant species Agave americana L. and Ricinus communis L.: a renewable green source of highly crystalline nanocellulose     

Evdokimova  Olga L.  Alves  Carla S.  Krsmanović Whiffen  Radenka M.  Ortega  Zaida  Tomás  Helena  Rodrigues  João 《Journal of Zhejiang University. Science. B》2021,22(6):450-461

In this study, the fibers of invasive species Agave americana L. and Ricinus communis L. were successfully used for the first time as new sources to produce cytocompatible and highly crystalline cellulose nanofibers. Cellulose nanofibers were obtained by two methods, based on either alkaline or acid hydrolysis. The morphology, chemical composition, and crystallinity of the obtained materials were characterized by scanning electron microscopy(SEM) together with energy-dispersive X-ray spectroscopy(EDX), dynamic light scattering(DLS), X-ray diffraction(XRD), and Fourier transform infrared(FTIR)spectroscopy. The crystallinity indexes(CIs) of the cellulose nanofibers extracted from A. americana and R. communis were very high(94.1% and 92.7%, respectively). Biological studies evaluating the cytotoxic effects of the prepared cellulose nanofibers on human embryonic kidney 293 T(HEK293 T) cells were also performed. The nanofibers obtained using the two different extraction methods were all shown to be cytocompatible in the concentration range assayed(i.e., 0-500 μg/mL). Our results showed that the nanocellulose extracted from A. americana and R. communis fibers has high potential as a new renewable green source of highly crystalline cellulose-based cytocompatible nanomaterials for biomedical applications.  相似文献   

Student teachers’ beliefs about the teacher’s role in inclusive education     

Vlatka Domović  Vizek Vidović Vlasta  Dejana Bouillet 《欧洲特需教育杂志》2017,32(2):175-190

The main aim of this research is to examine the basic features of student teachers’ professional beliefs about the teacher’s role in relation to teaching mainstream pupils and pupils with developmental disabilities. The starting assumption of this analysis is that teacher professional development is largely dependent upon teachers’ beliefs about various facets of their professional work. These concepts strongly influence the way that teachers teach and the way that they develop as teachers. The participants in the research are 314 student teachers at the Faculty of Teacher Education of the University of Zagreb who are being prepared to teach in lower grades of primary school. The beliefs were explored using a metaphor technique derived from cognitive theory of metaphor. The differences between beliefs about the perceived teacher role in general, and the perceived teacher role in the education of pupils with developmental disabilities were analysed. The results indicate that the dominant belief about the teacher’s role in teaching mainstream pupils is of the teacher as a transmitter of knowledge, while the findings regarding the dominant belief about the teacher’s role in teaching pupils with developmental difficulties appeared to be self-cantered orientation. No differences were found between student teachers at different study levels. The findings are discussed in the light of the curriculum of initial teacher education.  相似文献   

Profiles of educators     

Ivan Ivić 《Prospects》1989,19(3):427-436

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Empowering learners with personalised learning approaches? Agency,equity and transparency in the context of learning analytics     

Yi-Shan Tsai  Carlo Perrotta  Dragan Gašević 《Assessment & Evaluation in Higher Education》2020,45(4):554-567

Abstract

The emergence of personalised data technologies such as learning analytics is framed as a solution to manage the needs of higher education student populations that are growing ever more diverse and larger in size. However, the current approach to learning analytics presents tensions between increasing student agency in making learning-related decisions and ‘datafying’ students in the process of collecting, analysing and interpreting data. This article presents a study that explores staff and student experience of agency, equity and transparency in existing data practices and expectations towards learning analytics in a UK university. The results show a number of intertwined factors that have contributed to the tensions between enhancing a learner’s control of their studies and, at the same time, diminishing their autonomy as an active agent in the process of learning analytics. This article argues that learner empowerment should not be automatically assumed to have taken place as part of the adoption of learning analytics. Instead, the interwoven power relationships in a complex educational system and the interactions between humans and machines need to be taken into consideration when presenting learning analytics as an equitable process to enhance student agency and educational equity.  相似文献   

Emotional Behavior Problems,Parent Emotion Socialization,and Gender as Determinants of Teacher–Child Closeness     

Sarah Bardack  Jelena Obradović 《Early education and development》2017,28(5):507-524

Research Findings: Drawing from a diverse community sample of 89 children, ages 4–6, their primary caregivers and teachers, this study examined the interplay of child emotional behavior problems, parent emotion socialization practices, and gender in predicting teacher-child closeness. Teachers reported on perceptions of closeness with children. Parents and teachers reported on children’s emotional behavior problems, as indexed by overanxious behavior, overt, and relational aggression. Regression models revealed that higher relational aggression related to closer teacher-child relationships for all children of parents who employed minimization as an emotion socialization practice. Similarly, higher overt aggression related to closer teacher-child relationships for girls who experienced parent minimization. An analogous pattern of results emerged, such that lower parent emotional support buffered girls against the negative effects of higher relational aggression on teacher-child closeness, whereas higher parent emotional support related to lower levels of closeness for these girls. These findings contradict prior research linking supportive emotion socialization practices (e.g., empathy, comforting) to socioemotional competence and unsupportive practices (e.g., minimization, punishment) to poor school adjustment. Practice or Policy: Findings have implications for improving children’s classroom experience by identifying parent emotion socialization and gender as contexts for understanding child emotional behavior problems in relation to teacher-child closeness.  相似文献   

Lies,damned lies,and the Web     

Petar Jandrić 《Educational Philosophy and Theory》2017,49(6):578-579

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The influence of experience on pre-service and novice teachers – the Croatian perspective     

Alma Škugor  Marija Sablić 《欧洲师范教育杂志》2018,41(2):157-168

This paper researches students’ and teacher trainees’ personal experience of student-centred teaching during their education in grades 1–4 of primary school. The questionnaire comprised 45 statements and was completed by 403 primary school teacher trainees and 535 students (future teachers) at Faculties of Teacher Education in Croatia. The research results show that students do not have sufficient prior experience that they could use as inspiration in their future teaching practice and that in the course of their education they were mainly exposed to traditional approach to teaching. The majority of teacher trainees are aware of the importance of student-centred teaching although they cannot fully give up the control of students and educational process. This research opens up the issue of a paradigm change within the teaching system and education in Croatia as well as the issue of changes within education and professional development of teachers.  相似文献