case0601(Sleuth2)
case0601()所属R语言包:Sleuth2
Discrimination Against the Handicapped
歧视残疾人
译者:生物统计家园网 机器人LoveR
描述----------Description----------
Study explores how physical handicaps affect people's perception of employment qualifications. Researchers prepared 5 videotaped job interviews using actors with a script designed to reflect an interview with an applicant of average qualifications. The 5 tapes differed only in that the applicant appeared with a different handicap in each one. Seventy undergraduate students were randomly assigned to view the tapes and rate the qualification of the applicant on a 0-10 point scale.
研究探讨物理障碍如何影响人们的就业资格的观感。研究人员准备了5录像面试时使用演员,脚本设计,以反映与申请人的平均资格接受记者采访时。 5磁带仅在不同申请人,出现与在每一个不同的障碍。七十本科学生被随机分配在0-10点的规模,,查看磁带和评价申请人的资格。
用法----------Usage----------
case0601
格式----------Format----------
A data frame with 70 observations on the following 2 variables.
70观察以下2个变量的数据框。
Scoreis the score each student gave to the applicant
Score是每个学生给申请人的得分
Handicapis a factor variable with 5 levels—"None", "Amputee", "Crutches", "Hearing" and "Wheelchair"
Handicap是一个因素变量与5级"None","Amputee","Crutches","Hearing"和"Wheelchair"
源----------Source----------
Ramsey, F.L. and Schafer, D.W. (2002). The Statistical Sleuth: A Course in Methods of Data Analysis (2nd ed), Duxbury.
拉姆齐,F.L.和Schafer,D.W. (2002年)。的统计的猎犬:A课程方法的数据分析(第二版),达克斯伯里。
参考文献----------References----------
Cesare, S.J., Tannenbaum, R.J. and Dalessio, A. (1990). Interviewers' Decisions Related to Applicant Handicap Type and Rater Empathy, Human Performance 3(3): 157–171.
实例----------Examples----------
str(case0601)
boxplot(Score~Handicap, data=case0601, ylab="Score")
aov.handicap <- aov(Score ~ Handicap, case0601)
summary(aov.handicap)
TukeyHSD(aov.handicap)
#Calculate confidence interval for linear combination[计算的置信区间的线性组合]
#(wheelchair+crutches)/2 - (amputee+hearing)/2 as in Display 6.4[(轮椅拐杖)/ 2 - (截肢者+听力)/ 2显示6.4]
mean.handicaps <- with(case0601, tapply(Score, Handicap, mean))
var.handicaps <- with(case0601, tapply(Score, Handicap, var))
n <- 14
s.pooled <- sqrt(sum((n-1)*var.handicaps)/sum((n-1)*5))
## either[#在]
cr.wh <- mean.handicaps["Wheelchair"] + mean.handicaps["Crutches"]
am.he <- mean.handicaps["Amputee"] + mean.handicaps["Hearing"]
g <- cr.wh/2 - am.he/2
## or[#]
contr <- c(0, -1, 1, -1, 1)/2
g <- sum(contr * mean.handicaps)
se.g <- s.pooled * sqrt(sum(contr^2)/n)
t.65 <- qt(.975, 65)
## ci[#词]
g + c(-1,1) * t.65 * se.g
转载请注明:出自 生物统计家园网(http://www.biostatistic.net)。
注:
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