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Seyda Gul 《Journal of Science Education and Technology》2017,26(5):519-533
Nanobiotechnology, which resulted from the convergence of biotechnology and nanotechnology, is a new field of research, and it has an increasing impact on peoples’ everyday lives. Thus, it is important to measure peoples’ attitudes towards nanobiotechnology, in particular, those who are specifically involved in biology and science education. However, despite the existence of an adequate number of instruments on biotechnology or nanotechnology, for nanobiotechnology, there is no instrument that has been rigorously validated. Therefore, the aim of this study was to develop a nanobiotechnology scale for assessing the undergraduate students’ attitudes. The data were gathered from 236 student teachers enrolled in the departments of biology education and elementary science education. The findings from exploratory factor analysis (EFA) provided evidence for the validity and reliability of the final form of the scale. At total of 36 items were identified and contained within the following four factors, nanobiotechnology awareness, interest in nanobiotechnology, nanobiotechnology education, and the applications of nanobiotechnology. The total variance was 53.021%, and the Cronbach’s alpha for the overall scale was 0.93. The scale was later given to 203 student teachers, the results of which were presented in this study. The results indicated significant differences in gender and department in some of the subscales of the scale. As a result, it is believed that the instrument will be a valuable tool for both instructors and researchers in science education to assess the student teachers’ attitudes about nanobiotechnology. 相似文献
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Rüdiger Heim Svenja Konowalczyk Mariana Grgic Miriam Seyda Ulrike Burrmann Thomas Rauschenbach 《Zeitschrift für Erziehungswissenschaft》2016,19(4):783-805
While internet based surveys have gained importance in recent years, their use in adolescent related research is rare at best. The present paper offers an overview of advantages and disadvantages of online surveys and discusses their use in regard to the questioning of adolescents. In a comparison between two random samples of 13 to 17 year olds, we examine how differences between a telephone (N?= 1,784) and an online (N?= 1,652) survey materialize in regard to the coverage rate, discontinuation behavior, and item-non-response. The sampling is analyzed further with regard to sociodemographic differences. While there are no expected coverage problems for the adolescent target group, the results show that adolescents from educated families, as well as those with a migration background, took part more often in the online survey as opposed to the telephone survey. Also, a more intensive mobile use of the internet, as well as in part greater sports activity, is connected to a higher willingness to take part in the survey which suggests that the survey topic influences the willingness to participate. 相似文献
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Dipl.-Vw. Susanne Seyda 《Zeitschrift für Erziehungswissenschaft》2009,12(2):233-251
This paper analyses the impact of attending kindergarten, the most common early childhood care and education program in West Germany, on children’s placement at secondary school level. The analysis is based on an education production function that controls for parental background and regional variation in the educational system. The analysis confirms the hypothesis, that kindergarten attendance can have a long-lasting positive effect on educational chances. In four of six specifications a longer attendance of early childhood care and education increases the probability of attending a higher level secondary school. However, there are diminishing returns to early childhood education. 相似文献
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The aim of this study is to understand the motivating factors behind students’ choices in their decision-making process and also get an insight on their perception of different engineering branches. A survey was prepared and the results were evaluated amongst 1163 answers. Two major influences on student's decision in their professional choices are shown to be career services and family members. Generally, students have claimed to choose a profession based on ‘finding a job’ and ‘being happy’. Some engineering branches such as Genetic and Bioengineering, Chemical Engineering, Environmental Engineering and Industrial Engineering, are shown to be distinctly preferred by female students, whereas mechanical, civil and electronic engineering are favourites for male students. The survey results were also compared with the distribution of male and female students in various engineering departments. This study clearly shows that certain engineering branches are perceived as more appropriate for women and are thus favoured by female students, while those perceived as more appropriate for men are favoured by male students. 相似文献
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A Comparison of Experimental and Observational Approaches to Assessing the Effects of Time Constraints in a Medical Licensing Examination 
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下载免费PDF全文 Polina Harik Brian E. Clauser Irina Grabovsky Peter Baldwin Melissa J. Margolis Deniz Bucak Michael Jodoin William Walsh Steven Haist 《Journal of Educational Measurement》2018,55(2):308-327
Test administrators are appropriately concerned about the potential for time constraints to impact the validity of score interpretations; psychometric efforts to evaluate the impact of speededness date back more than half a century. The widespread move to computerized test delivery has led to the development of new approaches to evaluating how examinees use testing time and to new metrics designed to provide evidence about the extent to which time limits impact performance. Much of the existing research is based on these types of observational metrics; relatively few studies use randomized experiments to evaluate the impact time limits on scores. Of those studies that do report on randomized experiments, none directly compare the experimental results to evidence from observational metrics to evaluate the extent to which these metrics are able to sensitively identify conditions in which time constraints actually impact scores. The present study provides such evidence based on data from a medical licensing examination. The results indicate that these observational metrics are useful but provide an imprecise evaluation of the impact of time constraints on test performance. 相似文献
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