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selftest.ANVOVA_design.tck <-function(){
options(guiToolkit="tcltk")
w <- gwindow(title = "ANOVA experimental designs")
size(w) <- c(700, 670)
g <- ggroup(container=w, horizontal=FALSE, use.scrollwindow = TRUE)
#------------- Question 1 -----------#
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("In the design below we have six experimental units (EUs) randomly assigned to two treatments \n(A\u2081 and A\u2082). What is the experimental design?", container = gp1.1, anchor = c(-1,1))
font(qq) <- list(family = "cambria", size = 11)
gp1.1a <- getWidget(gp1)
img <- tkrplot::tkrplot(gp1.1a, function(){
par(bg = "white", mar = c(1,1,1,1))
ExpDesign("CRD",n = 6, cex.text = .85,titles = FALSE)
}
)
add(gp1, img, horizontal=TRUE)
ans1 <- c("(a) randomized complete block design (RCBD).",
"(b) completely randomized design (CRD).",
"(c) split-plot design.",
"(d) 2 x 2 factorial.",
"(e) nested design.",
"(f) matched pairs design (repeated measures)."
)
f1 <- function(h,....){
if(tail(svalue(r1),1) == ans1[1]){
gmessage(msg="Incorrect", icon = "error")
}
if(tail(svalue(r1),1)== ans1[2]){
gmessage(msg="Correct. The CRD is the simplest experimental design. \nNote that no blocking, splitting or nesting occurs.")
}
if(tail(svalue(r1),1)== ans1[3]){
gmessage(msg="Incorrect", icon = "error")
}
if(tail(svalue(r1),1)== ans1[4]){
gmessage(msg="Incorrect", icon = "error")
}
if(tail(svalue(r1),1)== ans1[5]){
gmessage(msg="Incorrect", icon = "error")
}
if(tail(svalue(r1),1)== ans1[6]){
gmessage(msg="Incorrect", icon = "error")
}
svalue(r1) <- character(0)
}
r1 <- gcheckboxgroup(ans1, container = gp1, checked = FALSE, 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("In the design below we have two factors A and B, each with two factor levels, randomly assigned \nwithin four blocks. What is the experimental design?", container = gp2.1, anchor = c(-1,1))
font(qq) <- list(family = "cambria", size = 11)
gp2.1a <- getToolkitWidget(gp2)
img <- tkrplot::tkrplot(gp2.1a, function(){
par(bg = "white", mar = c(1,1,1,1))
ExpDesign("SPRB",cex.text = .85,titles = FALSE)
}
)
add(gp2, img, horizontal=TRUE)
ans2 <- c("(a) randomized complete block design (RCBD).",
"(b) completely randomized design (CRD).",
"(c) split-plot design.",
"(d) 2 x 2 factorial.",
"(e) nested design.",
"(f) matched pairs design (repeated measures)."
)
f2 <- function(h,....){
if(tail(svalue(r2),1) == ans2[1]){
gmessage(msg="Incorrect", icon = "error")
}
if(tail(svalue(r2),1)== ans2[2]){
gmessage(msg="Incorrect",, icon = "error")
}
if(tail(svalue(r2),1)== ans2[3]){
gmessage(msg="Correct. Specifically, this is a split-plot design in randomized blocks (RBSP). Note that the blocks comprise a replicate for the whole plot (factor A) factor levels. The RBSP design is the most common split plot design.")
}
if(tail(svalue(r2),1)== ans2[4]){
gmessage(msg="Incorrect", icon = "error")
}
if(tail(svalue(r2),1)== ans2[5]){
gmessage(msg="Incorrect", icon = "error")
}
if(tail(svalue(r2),1)== ans2[6]){
gmessage(msg="Incorrect", icon = "error")
}
svalue(r2) <- character(0)
}
r2 <- gcheckboxgroup(ans2, container = gp2, checked = FALSE, where = "beginning", handler = f2)
#------------- Question 3 -----------#
gp3 <- gframe(container = g, spacing = 2, pos = 0, horizontal = FALSE)
gp3.1 <- ggroup(container = gp3, spacing = 2, pos = 0, horizontal = TRUE)
q <- glabel("3) ", container = gp3.1, horizontal = TRUE)
font(q) <- list(weight = "bold")
qq <- glabel("In the design below we have two factors A and B, each with two factor levels, randomly assigned to \nfour experimental units. What is the experimental design?", container = gp3.1, anchor = c(-1,1))
font(qq) <- list(family = "cambria", size = 11)
gp3.1a <- getToolkitWidget(gp3)
img <- tkrplot::tkrplot(gp3.1a, function(){
par(bg = "white", mar = c(1,1,1,1))
ExpDesign("factorial2by2",cex.text = .95,titles = FALSE)
}
)
add(gp3, img, horizontal=TRUE)
ans3 <- c("(a) randomized complete block design (RCBD).",
"(b) completely randomized design (CRD).",
"(c) split-plot design.",
"(d) 2 x 2 factorial.",
"(e) nested design.",
"(f) matched pairs design (repeated measures)."
)
f3 <- function(h,....){
if(tail(svalue(r3),1) == ans3[1]){
gmessage(msg="Incorrect", icon = "error")
}
if(tail(svalue(r3),1)== ans3[2]){
gmessage(msg="Incorrect", icon = "error")
}
if(tail(svalue(r3),1)== ans3[3]){
gmessage(msg="Incorrect", icon = "error")
}
if(tail(svalue(r3),1)== ans3[4]){
gmessage(msg="Correct. Note that the design here is balanced but unreplicated (each of the four factor level combinations has only one replicate). ")
}
if(tail(svalue(r3),1)== ans3[5]){
gmessage(msg="Incorrect", icon = "error")
}
if(tail(svalue(r3),1)== ans3[6]){
gmessage(msg="Incorrect", icon = "error")
}
svalue(r3) <- character(0)
}
r3 <- gcheckboxgroup(ans3, container = gp3, checked = FALSE, where = "beginning", handler = f3)
#------------- Question 4 -----------#
gp4 <- gframe(container = g, spacing = 2, pos = 0, horizontal = FALSE)
gp4.1 <- ggroup(container = gp4, spacing = 2, pos = 0, horizontal = TRUE)
q <- glabel("4) ", container = gp4.1, horizontal = TRUE)
font(q) <- list(weight = "bold")
qq <- glabel("In the design below we have two treatments (A\u2081 and A\u2082), randomly assigned within two blocks. \nWhat is the experimental design?", container = gp4.1, anchor = c(-1,1))
font(qq) <- list(family = "cambria", size = 11)
gp4.1a <- getToolkitWidget(gp4)
img <- tkrplot::tkrplot(gp4.1a, function(){
par(bg = "white", mar = c(1,1,1,1))
ExpDesign("RCBD",cex.text = .85,titles = FALSE)
}
)
add(gp4, img, horizontal=TRUE)
ans4 <- c("(a) randomized complete block design (RCBD).",
"(b) completely randomized design (CRD).",
"(c) split-plot design.",
"(d) 2 x 2 factorial.",
"(e) nested design.",
"(f) matched pairs design (repeated measures)."
)
f4 <- function(h,....){
if(tail(svalue(r4),1) == ans4[1]){
gmessage(msg="Correct. Note that treatments are assigned exactly once within each block.")
}
if(tail(svalue(r4),1)== ans4[2]){
gmessage(msg="Incorrect", icon = "error")
}
if(tail(svalue(r4),1)== ans4[3]){
gmessage(msg="Incorrect", icon = "error")
}
if(tail(svalue(r4),1)== ans4[4]){
gmessage(msg="Incorrect", icon = "error")
}
if(tail(svalue(r4),1)== ans4[5]){
gmessage(msg="Incorrect", icon = "error")
}
if(tail(svalue(r4),1)== ans4[6]){
gmessage(msg="Incorrect", icon = "error")
}
svalue(r4) <- character(0)
}
r4 <- gcheckboxgroup(ans4, container = gp4, checked = FALSE, where = "beginning", handler = f4)
#------------- Question 5 -----------#
gp5 <- gframe(container = g, spacing = 2, pos = 0, horizontal = FALSE)
gp5.1 <- ggroup(container = gp5, spacing = 2, pos = 0, horizontal = TRUE)
q <- glabel("5) ", container = gp5.1, horizontal = TRUE)
font(q) <- list(weight = "bold")
qq <- glabel("In the design below we have three experimental units randomly assigned to each of two treatments \n(A\u2081 and A\u2082). What is the experimental design?", container = gp5.1, anchor = c(-1,1))
font(qq) <- list(family = "cambria", size = 11)
gp5.1a <- getToolkitWidget(gp5)
img <- tkrplot::tkrplot(gp5.1a, function(){
par(bg = "white", mar = c(1,1,1,1))
ExpDesign("pairs",cex.text = .95,titles = FALSE)
}
)
add(gp5, img, horizontal=TRUE)
ans5 <- c("(a) randomized complete block design (RCBD).",
"(b) completely randomized design (CRD).",
"(c) split-plot design.",
"(d) 2 x 2 factorial.",
"(e) nested design.",
"(f) matched pairs design (repeated measures)."
)
f5 <- function(h,....){
if(tail(svalue(r5),1) == ans5[1]){
gmessage(msg="Incorrect", icon = "error")
}
if(tail(svalue(r5),1)== ans5[2]){
gmessage(msg="Incorrect", icon = "error")
}
if(tail(svalue(r5),1)== ans5[3]){
gmessage(msg="Incorrect", icon = "error")
}
if(tail(svalue(r5),1)== ans5[4]){
gmessage(msg="Incorrect", icon = "error")
}
if(tail(svalue(r5),1)== ans5[5]){
gmessage(msg="Incorrect", icon = "error")
}
if(tail(svalue(r5),1)== ans5[6]){
gmessage(msg="Correct. Note that each EU receives both treatments, but that the order in which the EUs receive treatments is randomized.")
}
svalue(r5) <- character(0)
}
r5 <- gcheckboxgroup(ans5, container = gp5, checked = FALSE, where = "beginning", handler = f5)
}
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