如果随机分配实验是教育研究的金标准,双胞胎的研究无疑是银的运行状态。双胞胎的研究使研究人员比较对象与相同的遗传因素,但他们体验不同的环境。

有如此多的与学生成绩相关联的变量相关因素在学校外面,一组研究人员佛罗里达州立大学使用数据集的双胞胎看教师素质对学生的影响阅读的发展。这一发现——也许不是一个重磅炸弹,但简而言之:老师的质量直接影响幼儿的阅读结果。

教师素质水平测定使用增值数据完整类第一和二年级的学生在口语测试中阅读流畅性,这是与理解能力的发展密切相关。双胞胎(包括同卵双胞胎分享100%的基因)有高质量的教师有更高的流畅性质量分数较低的比他们的兄弟姐妹的老师。

研究得出结论:“阅读不会开发优化在缺乏有效的指导。”While not a novel idea, it reinforces the critical need for not only evaluation strategies that identify whether teachers are effective, but also teacher preparation in scientifically based reading instruction, both of which are sorely lacking throughout the country. Florida, through its "Just Read, Florida!" initiative is ahead of most states in embracing the science of reading, and has seen a big rise in student achievement in reading over the last decade. Yet the study shows much work remains.

外交人员状态,“当指令是不那么有效,那么孩子的学习潜能不是优化。”A more blunt translation: as early as first grade, children's life trajectories are negatively impacted by poor reading instruction.