26 lines
958 B
R
26 lines
958 B
R
% Generated by roxygen2: do not edit by hand
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% Please edit documentation in R/residif.R
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\name{residif}
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\alias{residif}
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\title{RESIDIF procedure for DIF detection as per Andrich and Hagquist (2015)}
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\usage{
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residif(df = NULL, items = NULL, grp = NULL, method.theta = "eap", verbose = T)
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}
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\arguments{
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\item{df}{data.frame containing the data}
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\item{items}{vector containing the names of columns where item responses are stored in df}
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\item{grp}{vector containing the name of the column where an optional group membership variable is stored in df}
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\item{method.theta}{string determining the estimation method for individual latent variable values. Either "eap", "mle" or "wle"}
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\item{verbose}{set to TRUE to print a detailed output, FALSE otherwise}
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}
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\value{
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A data.frame containing a column listing the detected DIF item and another listing detected DIF forms
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}
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\description{
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This function detects DIF on PCM items using ANOVA of person-item residuals
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}
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