TestDesign (version 1.0.2)

item_GR-class: An S4 class to represent a graded response item

Description

An S4 class to represent a graded response item.

Slots

slope

Numeric. A slope parameter value.

category

Numeric. A vector of category boundary values.

ncat

Numeric. The number of response categories.

References

samejima_estimation_1969TestDesign

Examples

# NOT RUN {
item_6 <- new("item_GR", slope = 1.0, category = c(-2.0, -1.0, 0, 1.0, 2.0), ncat = 6)
# }