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71.
Parker JM Anderson CW Heidemann M Merrill J Merritt B Richmond G Urban-Lurain M 《CBE life sciences education》2012,11(1):47-57
We present a diagnostic question cluster (DQC) that assesses undergraduates' thinking about photosynthesis. This assessment tool is not designed to identify individual misconceptions. Rather, it is focused on students' abilities to apply basic concepts about photosynthesis by reasoning with a coordinated set of practices based on a few scientific principles: conservation of matter, conservation of energy, and the hierarchical nature of biological systems. Data on students' responses to the cluster items and uses of some of the questions in multiple-choice, multiple-true/false, and essay formats are compared. A cross-over study indicates that the multiple-true/false format shows promise as a machine-gradable format that identifies students who have a mixture of accurate and inaccurate ideas. In addition, interviews with students about their choices on three multiple-choice questions reveal the fragility of students' understanding. Collectively, the data show that many undergraduates lack both a basic understanding of the role of photosynthesis in plant metabolism and the ability to reason with scientific principles when learning new content. Implications for instruction are discussed. 相似文献
72.
纵观2012的国际T台,海洋风无疑是这一季最引人注目的关键词,赏心悦目之余,你身体里那些属于夏天的细胞是不是也已经被这股清新之风唤醒? 相似文献
73.
Ronald G. Ehrenberg George H. Jakubson Mirinda L. Martin Joyce B. Main Thomas Eisenberg 《Economics of Education Review》2012
Our paper focuses on the role that the gender composition of the leaders of American colleges and universities - trustees, presidents, and provosts - play in influencing the rate at which academic institutions diversify their faculty across gender lines. Our analyses make use of institutional level panel data that we have collected for a large sample of American academic institutions. 相似文献
74.
Mark A. A. M. Leenders Joyce van Telgen Gerda Gemser Richard Van der Wurff 《媒体管理杂志》2013,15(3-4):148-157
Nowadays, music festivals are very important for generating revenue streams in the music industry. However, studies on what makes music festivals a success are scant. In this article, a conceptual model to explain the success of music festivals is introduced and tested. Such a model seems pressing now that competition in the music festival industry is increasing. Our conceptual model includes variables that are under the control of music festival organizers, namely format and content characteristics. The content features include scope of the audience, lineup, age, and having a theme or message. Budget, ticket price, location, and having a maximum visitor capacity make up the format features. The model is tested with data from 47 music festivals in the Netherlands. The results show that relatively newer festivals can achieve good growth in terms of visitor attendance, especially if they have a narrow scope (niche). Interestingly, this is true for both large and small festivals. Our findings are important with respect to music festival diversity and choice for audiences, which may be at risk due to increasing competition. The fact that several festivals have a capacity constraint seems to be beneficial for diversity as well. Interestingly, budgets (and star lineup and ticket price), theme, and location are largely nonsignificant predictors of success. 相似文献
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Thomas R. Zentall Peter J. Urcuioli Joyce A. Jagielo Pamela Jackson-Smith 《Learning & behavior》1989,17(2):172-178
Coding strategies developed in the acquisition of delayed conditional discriminations can be assessed by independently manipulating sample and comparison memory load. Two stimulus dimensions that can affect memory load were examined: Number of stimuli in the sample and comparison sets (two vs. four) was manipulated between groups in a 2×2 design, and discriminability of sample and comparison stimuli (hues vs. lines) was manipulated between counterbalancing subgroups and within subjects. The results indicated large effects of sample discriminability but not of comparison discriminability, evidence for retrospective coding. There was also a significant effect of number of stimuli in the comparison set (although only with hard-to-discriminate samples) but not of number of stimuli in the sample set, evidence for prospective coding. These findings suggest evidence for retrospective coding with easy-to-discriminate samples, independently of number of stimuli in the comparison set, and evidence for prospective coding with hard-to-discriminate samples. 相似文献
80.
Gender Differences in Child Aggression: Relations With Gender‐Differentiated Parenting and Parents’ Gender‐Role Stereotypes 下载免费PDF全文
Joyce J. Endendijk Marleen G. Groeneveld Lotte D. van der Pol Sheila R. van Berkel Elizabeth T. Hallers‐Haalboom Marian J. Bakermans‐Kranenburg Judi Mesman 《Child development》2017,88(1):299-316
This longitudinal study examines the association between child gender and child aggression via parents’ physical control, moderated by parents’ gender‐role stereotypes in a sample of 299 two‐parent families with a 3‐year‐old child in the Netherlands. Fathers with strong stereotypical gender‐role attitudes and mothers were observed to use more physical control strategies with boys than with girls, whereas fathers with strong counterstereotypical attitudes toward gender roles used more physical control with girls than with boys. Moreover, when fathers had strong attitudes toward gender roles (stereotypical or counterstereotypical), their differential treatment of boys and girls completely accounted for the gender differences in children's aggressive behavior a year later. Mothers’ gender‐differentiated parenting practices were unrelated to gender differences in child aggression. 相似文献