实验室机时预约及信息管理系统的开发与应用

介绍了北京大学化学与分子工程学院中级仪器实验室新开发的机时预约及信息管理系统的结构模块和功能特色.系统在优化预约流程、强化预约功能的基础上,实现了仪器使用相关信息的网络查询和统计,提高了开放仪器实验室的服务水平和管理效率.此外还增设了导师远程查询和监管功能.     

The impact of the scoring system of a large-scale standardized EFL writing assessment on its score variability and reliability: Implications for assessment policy makers

Using generalizability (G-) theory and rater interviews as research methods, this study examined the impact of the current scoring system of the CET-4 (College English Test Band 4, a high-stakes national standardized EFL assessment in China) writing on its score variability and reliability. One hundred and twenty CET-4 essays written by 60 non-English major undergraduate students at one Chinese university were scored holistically by 35 experienced CET-4 raters using the authentic CET-4 scoring rubric. Ten purposively selected raters were further interviewed for their views on how the current scoring system could impact its score variability and reliability. The G-theory results indicated that the current single-task and single-rater holistic scoring system would not be able to yield acceptable generalizability and dependability coefficients. The rater interview results supported the quantitative findings. Important implications for the CET-4 writing assessment policy in China are discussed.