Item selection by item id, simulating a fixed test form. — select_sequential • meow

This function administers the next unadministered item to each respondent in increasing item-id order, producing a fixed linear test form.

Usage

select_sequential(pers, item, R, admin, adj_mat = NULL)

Arguments

pers: A data frame of current respondent ability estimates.
item: A data frame of current item parameter estimates.
R: A respondent-by-item matrix of potential responses.
admin: An integer administration matrix; 0 indicates an item has not been administered to a respondent. See meow() for details.
adj_mat: An item-item adjacency matrix. See construct_adj_mat().

Value

An updated administration matrix with each respondent's next item marked as administered.

Examples

sim <- meow(select_sequential, update_theta_mle, data_simple_1pl,
            data_args = list(N_persons = 10, N_items = 10), fix = "item")
nrow(sim$results)
#> [1] 6