classifyItemsMirt: Classify Items for MIRT

View source: R/itemanalysis.R

classifyItemsMirtR Documentation

Classify Items for MIRT

Description

Automatically classify the items in a data frame.

Usage

classifyItemsMirt(
  fm,
  Df,
  min.loading = 0.4,
  max.loading = 0.3,
  max.complexity = 100,
  itemlength = 0,
  digits = 2,
  Df.name = deparse(substitute(Df))
)

Arguments

fm

a factor model fitted by mirt::mirt

Df

a data frame containing the items

min.loading

minimum loading of an item to be considered a marker of a factor

max.loading

maximum loading of an item on a secondary factor (i.e., the factor on which the items has its second highest loading) to be considered a marker for the primary factor (i.e., the factor on which the items has its highest loading)

max.complexity

maximum complexity of an item to be considered a marker item

itemlength

trim item text to given number characters (0 = automatic trimming)

digits

number of digits used in the output

Df.name

name of data frame

Author(s)

Michael Hock michael.hock@uni-bamberg.de


mihock/iana documentation built on Jan. 14, 2024, 8:58 p.m.