Answer the current item

Scores the answer (category answer - 1, reversed on a reversed item; on a dichotomous item with a key, 1 for the correct option and 0 for any other), estimates the ability and its standard error again, and either selects the next item of the scale or, when the scale stops, moves to the next scale or ends the test.

Usage

cat_answer(s, answer)

Arguments

s

A CAT session.

answer

The option chosen, 1 to the number of options of the item, as shown to the person (before any reversal or scoring).

Value

The updated session.

See also

Other CAT session: cat_item(), cat_results(), cat_start(), plot_cat_trajectory()

Examples

q <- read_questionnaire(example_questionnaires()[3])
s <- cat_start(q, scales = "Openness")
s <- cat_answer(s, 5)
s$progress
#>      scale total answered     theta        se      status
#> 1 Openness    10        1 0.7971051 0.7477359 in progress