Nothing
selftest.ANOVAmixed.tck1 <-function(){
options(guiToolkit="tcltk")
w <- gwindow(title = "Mixed effect models")
size(w) <- c(700, 400)
g <- ggroup(container=w, horizontal=FALSE, use.scrollwindow = TRUE)
#------------- Question 1 -----------#
f1 <- function(h,....){
if(svalue(r1) == ans1[1]){
gmessage(msg="Partially correct", icon = "error", parent = gp1)
}
if(svalue(r1)== ans1[2]){
gmessage(msg="Partially correct", icon = "error", parent = gp1)
}
if(svalue(r1)== ans1[3]){
gmessage(msg="Partially correct", icon = "error", parent = gp1)
}
if(svalue(r1)== ans1[4]){
gmessage(msg="Correct", parent = gp1)
}
svalue(r1) <- character(0)
}
gp1 <- gframe(container = g, spacing = 2, pos = 0, horizontal = FALSE)
gp1.1 <- ggroup(container = gp1, spacing = 2, pos = 0, horizontal = TRUE)
q <- glabel("1) ", container = gp1.1, horizontal = TRUE)
font(q) <- list(weight = "bold")
qq <- glabel("Why do we use REML to estimate variances in random and mixed effect models?", container = gp1.1, anchor = c(-1,1))
font(qq) <- list(family = "cambria", size = 11)
#addSpace(gp1, .5)
ans1 <- c("(a) ML estimates are biased low.",
"(b) MOM estimates can be negative.",
"(c) Lack of balance in multifactor designs prevents MOM estimates.",
"(d) All of the above.")
r1 <- gcheckboxgroup(ans1, container = gp1, where = "beginning", handler = f1)
#------------- Question 2 -----------#
gp2 <- gframe(container = g, spacing = 2, pos = 0, horizontal = FALSE)
gp2.1 <- ggroup(container = gp2, spacing = 2, pos = 0, horizontal = TRUE)
q <- glabel("2) ", container = gp2.1, horizontal = TRUE)
font(q) <- list(weight = "bold")
qq <- glabel("For a random factor A with three stipulated factor levels, we would use a random effect model to test\n the null hypothesis...", container = gp2.1, anchor = c(-1,1))
font(qq) <- list(family = "cambria", size = 11)
#addSpace(gp1, .5)
ans2 <- c("(a) \u03bc\u2081 = \u03bc\u2082 = \u03bc\u2083.",
"(b) The true variance of the population of factor level means in A equals zero.",
"(c) The true variance of the observed factor level means in A equals zero.",
"(d) None of the above.")
f2 <- function(h,....){
if(svalue(r2) == ans2[1]){
gmessage(msg="Incorrect", icon = "error", parent = gp2)
}
if(svalue(r2)== ans2[2]){
gmessage(msg="Correct", parent = gp2)
}
if(svalue(r2)== ans2[3]){
gmessage(msg="Incorrect", icon = "error", parent = gp2)
}
if(svalue(r2)== ans2[4]){
gmessage(msg="Incorrect", icon = "error", parent = gp2)
}
svalue(r2) <- character(0)
}
r2 <- gcheckboxgroup(ans2, container = gp2, where = "beginning", handler = f2)
}
Any scripts or data that you put into this service are public.
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.