RAT | R Documentation |
This function defines a RAT module for incorporation into a
psychTestR timeline.
Use this function if you want to include the RAT in a
battery of other tests, or if you want to add custom psychTestR
pages to your test timeline.
For demoing the RAT, consider using RAT_demo()
.
For a standalone implementation of the RAT,
consider using RAT_standalone()
.
RAT(
num_items = 15L,
take_training = FALSE,
with_welcome = TRUE,
with_finish = TRUE,
label = "RAT",
feedback = RAT_feedback_with_score(),
next_item.criterion = "bOpt",
next_item.estimator = "BM",
next_item.prior_dist = "norm",
next_item.prior_par = c(0, 1),
final_ability.estimator = "WL",
constrain_answers = FALSE,
dict = RAT::RAT_dict
)
num_items |
(Integer scalar) Number of items in the test. |
take_training |
(Logical scalar) Whether to include the training phase. |
label |
(Character scalar) Label to give the RAT results in the output file. |
feedback |
(Function) Defines the feedback to give the participant at the end of the test. |
next_item.criterion |
(Character scalar)
Criterion for selecting successive items in the adaptive test.
See the |
next_item.estimator |
(Character scalar)
Ability estimation method used for selecting successive items in the adaptive test.
See the |
next_item.prior_dist |
(Character scalar)
The type of prior distribution to use when calculating ability estimates
for item selection.
Ignored if |
next_item.prior_par |
(Numeric vector, length 2)
Parameters for the prior distribution;
see the |
final_ability.estimator |
Estimation method used for the final ability estimate.
See the |
constrain_answers |
(Logical scalar)
If |
dict |
The psychTestR dictionary used for internationalisation. |
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.