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211.
Geraldine Clarebout Holger Horz Wolfgang Schnotz Jan Elen 《Educational technology research and development : ETR & D》2010,58(5):573-587
The current study investigates whether embedding support may provide a solution to sub optimal use of support and whether
this is related to learners’ self-regulation skills and goal orientation. Sixty students were divided in a condition where
support was embedded and a condition where support was non-embedded. Results reveal that the embedded group used more and
spent more time on the use of support. Quality of use differed for one support device only, with quality being higher in the
non-embedded group. An interaction with self-regulation was found. High self-regulators use the support devices less optimal
when support is embedded. No conclusions could be drawn with respect to goal orientation. Quality of usage and proportional
time spent on support influenced learning outcomes. 相似文献
212.
“Transfer” from research into practical applications is mostly seen as an autonomous domain between research and practice. For educational research, the author develops a conception in which transfer is a part of research, especially of applied educational research with a focus on teaching activities and teaching-learning materials. The criticism of traditional teaching research is examined and a research and development approach to didactics is proposed as a chance to combine theory and practice. The article comprises considerations on the scientific nature of research and development in didactics borrowing concepts from Bunge and Stokes and R & D in the economic sciences. The last section shows two research examples and closes with considerations for process and product evaluation in didactic research and development. 相似文献
213.
Donsbach Wolfgang; Neijens Peter; Traugott Michael W. 《Int. Journal of Public Opinion Research》2009,21(1):1-2
This issue contains a fine variety of articles: a historicalstudy, two studies in which theories and data are combined,a methodological study, and three research notes. The issueis completed with a book review, an overview of recent booksand articles in the field of public opinion, and WAPOR news. The first article 相似文献
214.
Wolfgang HUBER Uli MAYR ANDreas UMGELTER Michael FRANZEN Wolfgang REINDL RolAND M.SCHMID Florian ECKEL 《Journal of Zhejiang University. Science. B》2018,(7)
目的:通过对危重病人在入院后24小时内和整个重症监护过程中窦性心律和控制呼吸情况的调查,分析每搏量变异在评估危重病人容量反应的适用性,并探究每搏量变异度在败血症、肝硬化和胰腺炎病人中的适用性。创新点:通过探究窦性节律和控制呼吸情况评估每搏量变异度在重症监护病人临床上的适用性,弥补重症监护病人窦性节律和控制呼吸情况数据的空白。方法:在进行1241次热稀释法血流量测量前,对88位病人的窦性节律和控制呼吸情况进行调查。结论:每搏量变异度在主要的医疗重症监护病房中的适用性只约为25%~35%。两项强制性指标的流行性在重症监护病房的情况随时间的延长而降低。此外,每搏量变异度在胰腺炎和肝功能衰竭患者中的适用性尤其低。 相似文献
215.
216.
It has become somewhat of a custom for the editors of this journalto praise, at this place, the thematic and geographical diversityof the research presented in the respective issue. We will notbreak with this custom this time, but, with the twinkling ofan eye, begin by stating that diversity is almost lacking inone respect in this issue: gender. If it were not for one co-authorand the World Opinion and Book Reviewssections, this would be an all-male issue, authorwise. A 相似文献
217.
This issue of the journal has a full complement of articlesabout public opinion processes and methodological topics relatedto the reliability and validity of public opinion data. In accordwith the journal's stated policies, they reflect the work 相似文献
218.
The paper provides a briefintroduction to the biotechnology revolutionand its impact upon biological researchrelevant to military uses. It describes thestatus of biological weapons today, and currentefforts to strengthen the Biological WeaponsConvention with a legally binding complianceprotocol. Specific modifications ofmicro-organisms that may be of military use arediscussed. Three examples of dual-use researchactivities are then used to highlight issuesand dilemmas in ethical decision making. 相似文献
219.
Kepplinger Hans Mathias; Donsbach Wolfgang; Brosius Hans-Bernd; Staab Joachim Friedrich 《Int. Journal of Public Opinion Research》1989,1(4):326-342
This study investigates the relationship between media coverageof Helmut Kohl in seven leading German print media and the opinionsof the German general public about the politician between 1975and 1984. For the content analysis evaluative assessments aboutHelmut Kohl on six different dimensions of characteristics werecoded. The analysis of public opinion is based on 72 representativesurveys in which respondents expressed their evaluations ofthe politician. The two time series were compared by means ofcross-lagged correlations. The whole period was first examinedwith aggregations of three-months-intervals; then closer attentionwas paid to the time period since Helmut Kohl took office aschancellor on the basis of monthly intervals. In both cases,the results show that evaluation shifts in the media precedesimilar evaluation shifts in public opinion with a time lagof about three to six months for the whole period of investigation,and a somewhat shorter time lag for the time of his chancellorship.Evaluation shifts in the political magazines Der Spiegel andStern were more closely related to public opinion than evaluationshifts in the national dailies. 相似文献
220.
Wolfgang Schneider Dieter Wolke Matthias Schlagmüller Renate Meyer 《European Journal of Psychology of Education - EJPE》2004,19(4):385-406
Individual differences in academic success were investigated in a geographically defined whole-population sample of very preterm
children with a gestational age of less than 32 weeks or a birth weight of less than 1500 gm. The sample consisted of 264
very preterm children (75.6% of German-speaking survivors) and 264 controls matched for gender, socioeconomic status, marital
status and age of mother, who were studied from birth. The present analyses focused on the impact of cognitive skills assessed
at ages 6 and 8 on academic success at the age 13. IQ scores, prereading skills, reading, spelling, and math performance assessed
during the last kindergarten year and again at the end of Grade 2 were used as predictors of academic success in early adolescence.
Differences between very pretern children and controls in cognitive abilities already observed in earlier assessments remained
stable over time, with controls on average performing more than half a standard deviation above the level of preterm children.
Preterm children also performed poorer on the literacy measures and indicators of math performance. Multivariate and causal
modeling revealed different prediction patterns for the two groups. Whereas IQ was particularly important for the prediction
of academic success in the pre-term sample, general IQ was less relevant for the prediction of academic success in the control
group. When subgroups of at-risk children were formed according to birth weight categories, we found that school problems
were most pronounced for children with extremely low birth weight (1000 gm and less). 相似文献