General Health Questionnaire
Data from an psychiatric screening questionnaire
data("GHQ")A data frame with 22 observations on the following 4 variables.
GHQthe General Health Questionnaire score.
sexa factor with levels female and male
casesthe number of diseased subjects.
non.casesthe number of healthy subjects.
The data arise from a study of a psychiatric screening questionnaire called the GHQ (General Health Questionnaire, see Goldberg, 1972). Here the main question of interest is to see how caseness is related to gender and GHQ score.
D. Goldberg (1972). The Detection of Psychiatric Illness by Questionnaire, Oxford University Press, Oxford, UK.
data("GHQ", package = "HSAUR")
male <- subset(GHQ, sex == "male")
female <- subset(GHQ, sex == "female")
layout(matrix(1:2, ncol = 2))
barplot(t(as.matrix(male[,c("cases", "non.cases")])), main = "Male", xlab = "GHC score")
barplot(t(as.matrix(male[,c("cases", "non.cases")])), main = "Female", xlab = "GHC score")Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.