Read Conquest WLE or MLE Output Files

Read Conquest files comprising maximum likelihood estimates (MLE) or weighted likelihood estimates (WLE).

get.wle(file)

Arguments

file

Character string with the name of the ConQuest MLE or WLE file.

Value

A data frame with one row per person containing the following columns:

case

Case number

ID

Identifier for this case

n.solved

Number of items this person answered correctly

n.total

Number of total items presented to this person

wle

WLE or MLE estimate. The last number of the columns name indicates the dimension the WLE or MLE estimate belongs to.

std.wle

Standard error of WLE or MLE estimate. The last number of the columns name indicates the dimension the WLE or MLE estimate belongs to.

References

See pp. 230 of Wu, M.L., Adams, R.J., Wilson, M.R., & Haldane, S.A. (2007). ACER ConQuest Version 2.0. Generalised Item Response Modeling Software. Camberwell, Victoria: ACER Press.

Examples

file <- system.file("extdata", "twodim.wle", package = "eatModel")
if (nzchar(file)) {
wle  <- get.wle(file)
}
#> Found valid WLEs of 2907 person(s) for 2 dimension(s).