estimation_control {exhaustiveRasch} | R Documentation |
options for item parameter estimation
Description
options for item parameter estimation
Usage
estimation_control(
est = "psychotools",
resp.cat = NULL,
use.thurst = TRUE,
splitseed = NULL
)
Arguments
est |
a character value defining the estimation function to use. Possible values: 'psychotools', 'eRm', 'pairwise'. |
resp.cat |
number of response (answer) categories for all items. If not given, they will be calculated from the data, assuming that every response category is at least once present in the data. Currently only used for pairwise estimations (m parameter in 'pairwise::pair'). |
use.thurst |
a boolean value defining whether thurstonian threshold parameters (TRUE, default) or Rasch-Andrich thresholds (step parameters) will be computed. |
splitseed |
a numeric value, the seed for random splits in test_waldtest, lest_LR (both only relevant for 'pairwise' or 'psychotools' estimations) and test_mloef (only 'psychotools' estimations) |
Value
a list containing the options