summary.eqc | R Documentation |
summary
method for class eqc
.
## S3 method for class 'eqc'
summary(object, ...)
## S3 method for class 'summary.eqc'
print(x, ...)
object |
an object of the class |
x |
an object of class |
... |
further arguments passed to or from other methods. |
The function summary.eqc
returns a list with components
forms |
names of equated forms. |
method |
the equating method used. |
coefficients |
a |
Michela Battauz
direc
, modIRT
# the following code uses item parameter estimates previously obtained
# for examples that start from item response data see function modIRT
# three-parameter logistic model
# direct equating coefficients between forms 1 and 2 using the Stocking-Lord method
data(est3pl)
test <- paste("test", 1:5, sep = "")
mod3pl <- modIRT(coef = est3pl$coef, var = est3pl$var, names = test, display = FALSE)
l12 <- direc(mod1 = mod3pl[1], mod2 = mod3pl[2], method = "Stocking-Lord")
summary(l12)
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