create_revItem: Internal function to create revItem from prop.rev

Description Usage Arguments Value

Description

Creates revItem from prop.rev or simply returns revItem if supplied.

Usage

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create_revItem(prop.rev = NULL, revItem = NULL, J = NULL,
  n.trait = NULL, traitItem = NULL)

Arguments

prop.rev

proportion of reversed items (rounded to next integer). Can be a vector if multiple traits are specified by traitItem. Only used if revItem = NULL.

revItem

vector of length J specifying reversed items (1=reversed, 0=regular). Overrides argument prop.rev.

J

number of items

n.trait

Integer, number of content-related traits.

traitItem

vector of length J specifying the underlying traits (e.g., indexed from 1...5). Standard: only a single trait is measured by all items. If the Big5 are measured, might be something like c(1,1,1,2,2,2,...,5,5,5,5)

Value

vector revItem comprised of 0s and 1s.


hplieninger/mpt2irt documentation built on May 17, 2019, 4:54 p.m.