rasch_drop function

Drop items from a Rasch Analysis

rasch_drop(vars_metric, drop_vars, max_values)

Arguments

• vars_metric: a character vector of items to use in the Rasch Analysis
• drop_vars: a character vector of column names to drop from the Rasch Analysis. Default is NULL, to not drop items.
• max_values: a tibble with two columns, var equivalent to vars_metric and max_val with their corresponding maximum possible values

Returns

a named list with: - vars_metric: new vars_metric after dropping the desired variables

• max_values: new max_values after dropping the desired variables

Details

Dropping variables might be desirable if one finds that particular items are causing a lot of problems for the fit of a Rasch Model.

See Also

Other rasch functions: rasch_DIF(), rasch_df_nest(), rasch_factor(), rasch_mds_children(), rasch_mds(), rasch_model_children(), rasch_model(), rasch_quality_children_print(), rasch_quality_children(), rasch_rawscore(), rasch_recode(), rasch_rescale_children(), rasch_rescale(), rasch_split_age(), rasch_split(), rasch_testlet()

Other children analysis functions: rasch_df_nest(), rasch_mds_children(), rasch_model_children(), rasch_quality_children_print(), rasch_quality_children(), rasch_recode(), rasch_rescale_children(), rasch_split_age(), rasch_split(), rasch_testlet()