Exposure to Violence Across the Social Ecosystem and the Development of Aggression: A Test of Ecological Theory in the Israeli–Palestinian Conflict     

Paul Boxer  L. Rowell Huesmann  Eric F. Dubow  Simha F. Landau  Shira Dvir Gvirsman  Khalil Shikaki  Jeremy Ginges 《Child development》2013,84(1):163-177

Bronfenbrenner’s (1979) ecological model proposes that events in higher order social ecosystems should influence human development through their impact on events in lower order social ecosystems. This proposition was tested with respect to ecological violence and the development of children’s aggression via analyses of 3 waves of data (1 wave yearly for 3 years) from 3 age cohorts (starting ages: 8, 11, and 14) representing three populations in the Middle East: Palestinians (N = 600), Israeli Jews (N = 451), and Israeli Arabs (N = 450). Results supported a hypothesized model in which ethnopolitical violence increases community, family, and school violence and children’s aggression. Findings are discussed with respect to ecological and observational learning perspectives on the development of aggressive behavior.  相似文献   

Exploring young children’s self-efficacy beliefs related to mathematical and nonmathematical tasks performed in kindergarten: abused and neglected children and their peers     

Dina Tirosh  Pessia Tsamir  Esther Levenson  Michal Tabach  Ruthi Barkai 《Educational Studies in Mathematics》2013,83(2):309-322

This article reports on young children’s self-efficacy beliefs and their corresponding performance of mathematical and nonmathematical tasks typically encountered in kindergarten. Participants included 132 kindergarten children aged 5–6 years old. Among the participants, 69 children were identified by the social welfare department as being abused and/or neglected. Individual interviews were conducted where children were asked to assess their self-efficacy regarding sorting tasks, mathematics tasks, and reciting the alphabet. Children were then requested to perform each of the tasks. Results revealed that no significant differences were found between the abused and neglected children and their peers regarding their self-efficacy beliefs and performances for any of the tasks. For some of the tasks, children were able to correctly assess their performance, while for other tasks, children overestimated their performance. Possible reasons for these outcomes are discussed.  相似文献   

Problem solving strategies and mathematical resources: A longitudinal view on problem solving in a function based approach to algebra     

Michal Yerushalmy 《Educational Studies in Mathematics》2000,43(2):125-147

This study is an attempt to analyze students' construction of function based problem solving methods in introductory algebra. It claims that for functions to be a main concept for learning school algebra, a complex process that has to be developed during a long period of learning must take place. The article describes a longitudinal observation of a pair of students that studied algebra for 3 years using a function approach, including intensive use of graphing technology. Such a long observation is difficult to carry out and even more difficult to report. We watched for three years classrooms using the ‘Visual-Math’ sequence, and sampled students that exhibited various levels of mathematics achievement. The analysis method presented here is a non-standard case study of a pair of lower achievers students and their work is often juxtaposed to the work of other pairs participating in the study. The students' attempts to solve a linear break-even problem is analyzed along three interviews which present the development of the use of mathematical resources and the patterns of problem solving at different learning phases. Beyond describing solving attempts, the article offers terms for describing and explaining what and how do learners appreciate and make out of solving introductory school algebra problems over a three years course. This revised version was published online in July 2006 with corrections to the Cover Date.  相似文献   

Phonological Awareness,Peer Nominations,and Social Competence Among Preschool Children At Risk for Developing Learning Disabilities     

Tova Most  Michal Al-Yagon  Hana Tur-Kaspa  Malka Margalit 《International Journal of Disability, Development & Education》2000,47(1):89-105

This study examined the relations between phonological awareness skills and social-emotional competence among preschool children who were considered at risk for developing learning disabilities. Phonological awareness skills, loneliness, sense of coherence, and peer acceptance of 98 children with an age range from 5.0 to 6.4 years (39 with a high risk for developing learning disabilities and 59 nondisabled peers) were assessed. The children at risk differed significantly from the nondisabled children on all measures. Their scores on the phonological awareness measures were lower, they viewed themselves as more lonely, felt less confident about their world, and they were less accepted by their peers. Subgrouping, using the sense of coherence and the combined phonological measure as criteria, revealed that the largest number of children at risk were in the group with lowest levels of coherence and phonological awareness skills. The smallest proportion of high risk children was found in the group characterised by its high sense of coherence and high level of phonological awareness. Thus, children at risk for developing learning disabilities revealed two groups of deficits: phonological awareness difficulties and social-emotional difficulties. The results emphasised the need to examine interrelations between peer acceptance and both cognitive-phonological awareness and emotional domains.  相似文献   

A Portable Tool for the Evaluation of Microclimate Conditions within Museum Enclosures,Transit Frames,and Transport Cases     

Marianne Odlyha  Jonathon M. Slater  Terje Grøntoft  Slawomir Jakiela  Michal Obarzanowski  David Thickett 《文物保护研究》2018,63(5):407-410

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Quality Control for Scoring Tests Administered in Continuous Mode: An NCME Instructional Module          下载免费PDF全文

Michal Baumer 《Educational Measurement》2017,36(1):58-68

Quality control (QC) in testing is paramount. QC procedures for tests can be divided into two types. The first type, one that has been well researched, is QC for tests administered to large population groups on few administration dates using a small set of test forms (e.g., large‐scale assessment). The second type is QC for tests, usually computerized, that are administered to small population groups on many administration dates using a wide array of test forms (CMT—continuous mode tests). Since the world of testing is headed in this direction, developing QC for CMT is crucial. In the current ITEMS module we discuss errors that might occur at the different stages of the CMT process, as well as the recommended QC procedure to reduce the incidence of each error. Illustration from a recent study is provided, and a computerized system that applies these procedures is presented. Instructions on how to develop one's own QC procedure are also included.  相似文献   

On complexity reduction of concept lattices: three counterexamples     

Michal Krupka 《Information Retrieval》2012,15(2):151-156

We discuss the paper by Cheung and Vogel, Inf Retr 8(2), pp 285–299 (2005). We introduce some counterexamples showing that the theoretical results, the paper is based upon, are incorrect.  相似文献   

Whole‐word shape effect in dyslexia     

Michal Lavidor 《Journal of Research in Reading》2011,34(4):443-454

The research question here was whether whole‐word shape cues might facilitate reading in dyslexia following reports of how normal‐reading children benefit from using this cue when learning to read. We predicted that adults with dyslexia would tend to rely more on orthographic rather than other cues when reading, and therefore would be more affected by word shape manipulations. This prediction was tested in a lexical decision task on words with a flat or a non‐flat outline (i.e. without or with letters with ascending/descending features). We found that readers with dyslexia were significantly faster when reading non‐flat compared with flat words, while typical readers did not benefit from whole‐word shape cues. The interaction of participants' group and word shape was not modulated by word frequency; that is word outline shape facilitated reading for both rare and frequent words. Our results suggest that enhanced sensitivity to orthographic cues is developed in some cases of dyslexia when normal, phonology‐based word recognition processing is not exploited.  相似文献   

MATHEMATICS EDUCATORS’ VIEWS ON THE ROLE OF MATHEMATICS LEARNING IN DEVELOPING DEDUCTIVE REASONING     

Michal Ayalon  Ruhama Even 《International Journal of Science and Mathematics Education》2010,8(6):1131-1154

This study examines the views of people involved in mathematics education regarding the commonly stated goal of using mathematics learning to develop deductive reasoning that is usable outside of mathematical contexts. The data source includes 21 individual semi-structured interviews. The findings of the study show that the interviewees ascribed different meanings to the above-stated goal. Moreover, none of them said that it is possible to develop formal logic-based reasoning useful outside of mathematics, but for different reasons. Three distinct views were identified: the intervention–argumentation view, the reservation–deductive view, and the spontaneity–systematic view. Each interviewee’s view was interrelated with the interviewee’s approach to deductive reasoning and its nature in mathematics and outside it.  相似文献   

Multi-function microsystem for cells migration analysis and evaluation of photodynamic therapy procedure in coculture     

Elzbieta Jastrzebska  Ilona Grabowska-Jadach  Michal Chudy  Artur Dybko  Zbigniew Brzozka 《Biomicrofluidics》2012,6(4)

Cell migration is an important physiological process, which is involved in cancer metastasis. Therefore, the investigation of cell migration may lead to the development of novel therapeutic approaches. In this study, we have successfully developed a microsystem for culture of two cell types (non-malignant and carcinoma) and for analysis of cell migration dependence on distance between them. Finally, we studied quantitatively the influence of photodynamic therapy (PDT) procedures on the viability of pairs of non-malignant (MRC5 or Balb/3T3) and carcinoma (A549) cells coculture. The proposed geometry of the microsystem allowed for separate introduction of two cell lines and analysis of cells migration dependence on distance between the cells. We found that a length of connecting microchannel has an influence on cell migration and viability of non-malignant cells after PDT procedure. Summarizing, the developed microsystem can constitute a new tool for carrying out experiments, which offers a few functions: cell migration analysis, carcinoma and non-malignant cells coculture, and evaluation of PDT procedure in the various steps of cell migration.  相似文献