difficulty_to_gamma

Convert a difficulty score to a guessing probability.

internal

Provides tools to adjust estimates of learning for guessing-related
bias in educational and survey research. Implements standard guessing
correction methods and latent class models that leverage informative
pre-post test transitions to account for guessing behavior.
The package helps researchers obtain more accurate estimates of actual
learning when respondents may guess on closed-ended knowledge items.
For theoretical background and empirical validation, see Cor and Sood (2016)
<https://gsood.com/research/papers/guess.pdf>.

Gaurav Sood

guess

Adjust Estimates of Learning for Guessing

Ken Cor

difficulty_to_gamma function

<dl><dt>difficulty</dt>
<dd>numeric vector of difficulty parameters</dd>
<dt>base_rate</dt>
<dd>minimum guessing probability (1/K for K-choice items)</dd></dl>

Arguments

Transform difficulty to gamma — difficulty_to_gamma

<dl>

<dt>difficulty</dt>
<dd>numeric vector of difficulty parameters</dd>


<dt>base_rate</dt>
<dd>minimum guessing probability (1/K for K-choice items)</dd>

</dl>

difficulty_to_gamma: Transform difficulty to gamma

Description

Usage

Value

Arguments