builtin_keys {dscore}

Available keys for calculating the D-score

Description

A key contains the item difficulty estimates from a given Rasch model. The difficulty estimates (tau) are used to calculate D-scores. D-scores can only be compared when calculated with the same key.

Usage

builtin_keys

Format

builtin_keys is a data.frame with variables:

Name	Label
key	String. Name of the key indicating the Rasch model
base_population	String. Name of the base population for the key
n_items	Number of items in the key
n_instruments	Number of instruments in the key
intercept	Intercept to convert logit into D-score
slope	Slope to convert logit into D-score
from	Starting value of the quadrature points
to	Stopping value of the quadrature points
by	Increment of the quadrature points
retired	Has the key been retired?

Note

20240609 SvB: Added builtin_keys table by ⁠data-raw\data\R\save_builtin_keys.R⁠