classroom(WWGbook)
classroom()所属R语言包:WWGbook
classroom data in Chapter 4
课堂在第4章中的数据
译者:生物统计家园网 机器人LoveR
描述----------Description----------
The Study of Instructional Improvement (SII; Hill, Rowan, and Ball, 2004) was carried out by researchers at the University of Michigan to study the math achievement scores of first- and third-grade students in randomly selected classrooms from a national U.S. sample of elementary schools.
进行研究的教学改进“(SII;山,罗文,球,2004年)的研究人员在美国密歇根大学的研究第一和三年级学生的数学成绩从国美样品中随机选取的教室小学。
用法----------Usage----------
data(classroom)
格式----------Format----------
A data frame with 1190 observations on the following 12 variables.
1190以下12个变量的观察数据框。
sex : Indicator variable (0 = boys, 1 = girls)
性别:指标变量(0 =男孩,1 =女孩)
minority : Indicator variable (0 = non-minority students, 1 = minority students)
少数指标变量(0 =非少数民族学生,少数民族学生)
mathkind : Student math score in the spring of their kindergarten year
mathkind:学生的数学成绩在他们的幼儿园一年的春天
mathgain : Student gain in math achievement score from the spring of kindergarten to the spring of first grade (the dependent variable)
mathgain:学生的数学成绩得分收益的春天幼儿园到小学一年级的春天(因变量)
ses : Student socioeconomic status
SES:学生的社会经济地位
yearstea : First grade teacher years of teaching experience
yearstea:一年级的老师多年的教学经验
mathknow : First grade teacher mathematics content knowledge: based on a scale based composed of 30 items (higher values indicate higher content knowledge)
mathknow:一年级老师的数学知识:根据规模的基础上组成的30个项目(值越高,表明较高的知识内容)
housepov : Percentage of households in the neighborhood of the school below the poverty level
housepov:在附近的学校在贫困线以下的家庭比例
mathprep : First grade teacher mathematics preparation: number of mathematics content and methods courses
mathprep:一年级老师的数学准备:一些数学内容和方法,课程
classid : Classroom ID number
的classid:课堂ID号
schoolid : School ID number
schoolid:学校ID号
childid : Student ID number
childid:学生ID号
参考文献----------References----------
American Educational Research Journal, Learning Mathematics for Teaching (LMT) Project.
Chapman Hall / CRC Press, first edition, 2006.
实例----------Examples----------
attach(classroom)
#### Boxplots for Figure 4.2[###盒形图图4.2]
classroom.first8 <- classroom[classroom$schoolid <= 8,]
par(mfrow=c(4,2))
for (i in 1:8)
{boxplot(classroom.first8$mathgain[classroom.first8$schoolid==i] ~ classroom.first8$classid[classroom.first8$schoolid==i],ylab="Mathgain", xlab="classid" )}
转载请注明:出自 生物统计家园网(http://www.biostatistic.net)。
注:
注1:为了方便大家学习,本文档为生物统计家园网机器人LoveR翻译而成,仅供个人R语言学习参考使用,生物统计家园保留版权。
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