Extract person parameters (REBL scores) from a fitted Rasch model. Optionally includes person fit statistics to assess how well each person's response pattern fits the Rasch model.
Arguments
- model
A fitted eRm Rasch model object from
get_rasch_model()
- df
A data.frame containing all the REBL items and a unique id
- rebl_items
A character vector REBL item names
Value
A dataframe with participant IDs, REBL scores, and optionally person fit statistics. When include_fits is TRUE, includes columns for outfit, infit, and other fit measures from eRm::personfit()
Examples
if (FALSE) { # \dontrun{
# Fit model and get scores
model <- get_rasch_model(df, "id", rebl_items)
scores <- get_rebl_scores(model, include_fits = TRUE)
# Get scores without fit statistics
scores_only <- get_rebl_scores(model, include_fits = FALSE)
} # }