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Vivian C. Wong Jeffrey C. Valentine Kate Miller-Bains 《Journal of research on educational effectiveness》2017,10(1):207-236
This article summarizes results from 12 empirical evaluations of observational methods in education contexts. We look at the performance of three common covariate-types in observational studies where the outcome is a standardized reading or math test. They are: pretest measures, local geographic matching, and rich covariate sets with a strong theory of treatment selection. Overall, the review demonstrates that although the pretest often reduces bias in observational studies, it does not always eliminate it. Its performance depends on the pretest's correlation with treatment selection and the outcome, and whether preintervention trends are present. We also find that although local comparisons are prioritized for matching, its performance depends on whether comparable no-treatment cases are available. Otherwise, local comparisons may produce badly biased results. In cases where researchers have a strong theory of selection and rich covariate sets, observational methods perform well, but additional replication studies are needed. Finally, observational methods that rely on demographic covariates without a theory of selection rarely produce unbiased treatment effects. The article concludes by offering education researchers empirically based guidance on covariate selection in observational studies. 相似文献
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Berman BA Eckhardt EA Kleiger HB Wong G Lipton DS Bastani R Barkin S 《American annals of the deaf》2000,145(3):245-255
Formidable barriers hinder use of standard data collection methods among deaf youth. Culturally and linguistically sensitive data collection strategies are needed to identify the unmet health and programming needs of this population. Unfortunately, researchers often fail to describe the issues involved in developing such targeted methods. The authors describe development of a culturally appropriate data collection instrument for a study of tobacco-related knowledge, attitudes, and practices among deaf youth. The instrument uses interactive multimedia technology to administer a questionnaire translated into the primary languages used by the Deaf. The procedures taken to accommodate this technology to these languages and to Deaf culture are described. This process yielded useful insights with respect to data collection not only among the Deaf, but among other frequently overlooked and underserved populations as well. 相似文献
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Eng Soo Peck Katherine Yip Lily Wong Amy Farn Larn Tit Loong Frances Lee 《Asia Pacific Journal of Education》1983,5(2):20-42
The Institute of Education is the only institution in Singapore that trains and prepares individuals for the task of teaching. In order to ensure that its products, the teachers, are of a respectable calibre, not only should the training programme be reviewed regularly, but also the method of selecting trainees. 相似文献
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Competence to work in schools is an important dimension of professional competence, although it is often a neglected dimension of teacher development. This article reports a qualitative study that examined student teachers’ learning experiences in initial teacher education (ITE) in relation to competence to work in schools. In-depth interviews were conducted with 12 student teachers on an undergraduate ITE programme in Hong Kong. The findings of the study show that competence to work in schools is characterised by student teachers’ deep contextualised learning. In addition, it offers a deeper understanding of this competence in the ITE context by identifying its three facets, namely understanding of the micro-political realities of schools, social capital building and social strategies. The study provides insights for ITE and schools to support student teachers’ development of their competence to work in schools, including the design of ITE curricula, ITE processes and co-curricular activities in undergraduate studies. Moreover, it suggests the importance of developing schools as growth-fostering and positive micro-political sites for ITE fieldwork and teacher induction. 相似文献
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Lachlan Crawford Leslie Sharpe Hu Chun S. Gopinathan Moo Swee Ngoh Angela Wong 《Asia-Pacific Journal of Teacher Education》2002,30(1):67-78
Members of this research team are investigating the use of multipoint desktop video conferencing (MDVC) technology in Singapore to enhance the National Institute of Education's schools practicum partnership model. The project builds on the Singapore ONE ATM island-wide network and the high-speed ADSL line access provided by Singtel Magix. This infrastructure provides state-of-the-art support for the White Pine CU-SeeMe Meeting Point server and client software that enables students on teaching practice to conference with each other and their university-based supervisors. A typical conference involves four of five students at different schools and one staff member at the National Institute of Education in Singapore. These conferences provide opportunities for professional sharing between staff and students without the limits of time and space which are traditional constraints on conventional teaching practice. 相似文献
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Lily Yee-Sheung Wong Loh Mei Yoke Ng Lay Pheng Mak Wai Han 《Asia Pacific Journal of Education》1992,12(2):26-34
Research on the facilitative effect of diagrams on solving mathematics problems is both inconsistent and inconclusive. This study investigates the effects of diagrams on 124 Singaporean pupils in three classes: Primary One and three, and Secondary One. Pupils' performance was measured with the use of teacher-written mathematics problems in the form of worksheets. Number of errors made on problems accompanied with and without diagrams were compared. Whether or not pupils benefit from diagrams was estimated by their patterns of errors made in the presence or absence of diagrams. Results both confirm and disconfirm previous findings and shed further light on the use of diagrams in mathematics. 相似文献
69.
Several researchers have suggested that the computer holds much promise as a tool for science teachers for use in their classrooms (Bork, 1979, Lunetta & Hofstein, 1981). It also has been said that there needs to be more research in determining the effectiveness of computer software (Tinker, 1983). This study compared the effectiveness of microcomputer simulated experiences with that of parallel instruction involving hands-on laboratory experiences for teaching the concept of volume displacement to junior high school students. This study also assessed the differential effect on students' understanding of the volume displacement concept using sex of the students as another independent variable. In addition, it compared the degree of retention, after 45 days, of both treatment groups. It was found that computer simulated experiences were as effective as hands-on laboratory experiences, and that males, having had hands-on laboratory experiences, performed better on the posttest than females having had the hands-on laboratory experiences. There were no significant differences in performance when comparing males with females using the computer simulation in the learning of the displacement concept. This study also showed that there were no significant differences in the retention levels when the retention scores of the computer simulation groups were compared to those that had the hands-on laboratory experiences. However, an ANOVA of the retention test scores revealed that males in both treatment conditions retained knowledge of volume displacement better than females. 相似文献
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