domc_analytical: Probability that a DOMC item is solved correctly given...

Description Usage Arguments Value Author(s)

Description

This function can be used to analytically determine the expected probability that a DOMC item is solved correctly, as opposed to the simulation approach used in workDOMCItem

Usage

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domc_analytical(accuracy, criterionVector, n_options = NULL, item = NULL,
  sd_sol = 1)

Arguments

accuracy

Accuracy value of an assumed test taker

criterionVector

The test taker's criterion vector; pass as in createTestTaker

n_options

number of answer options in the MC item; only pass if item parameter is not specified

item

Can be passed instead of n_options - pass a vector of 0 and 1, which indicate the sequence of answer options, in particular the solution position

sd_sol

Standard deviation of the solution distribution. Distractor SD is always 1

Value

The expected probability that an item is solved correctly

Author(s)

Martin Papenberg martin.papenberg@hhu.de


m-Py/DOTA2 documentation built on May 19, 2019, 3 a.m.