oracle

oracle,Cat-method

Generating all possible combinations of length n from a response profile to determine
the possible response profile best able to estimate the true value of theta.

Provides methods of computerized adaptive testing for survey researchers. See Montgomery and Rossiter (2020) <doi:10.1093/jssam/smz027>. Includes functionality for data fit with the classic item response methods including the latent trait model, Birnbaum`s three parameter model, the graded response, and the generalized partial credit model. Additionally, includes several ability parameter estimation and item selection routines. During item selection, all calculations are done in compiled C++ code.

Erin Rossiter

catSurv

Computerized Adaptive Testing for Survey Research

Jacob Montgomery

oracle function

<dl><dt>catObj</dt>
<dd>An object of class <code>Cat</code></dd>
<dt>theta</dt>
<dd>A numeric representing the true position on the latent trait.</dd>
<dt>responses</dt>
<dd>A vector representing the respondent's full answer profile.</dd>
<dt>approx</dt>
<dd>If TRUE, uses a subset of 1000 potential response profiles</dd>
<dt>parallel</dt>
<dd>If TRUE, computes in parallel</dd></dl>

Arguments

Haley Acevedo, Ryden Butler, Josh W. Cutler, Matt Malis, Jacob M. Montgomery, Tom Wilkinson, Erin Rossiter, Min Hee Seo, Alex Weil

Author

Find Answer Profile that Minimizes Bias — oracle

<dl>

<dt>catObj</dt>
<dd>An object of class <code>Cat</code></dd>


<dt>theta</dt>
<dd>A numeric representing the true position on the latent trait.</dd>


<dt>responses</dt>
<dd>A vector representing the respondent's full answer profile.</dd>


<dt>approx</dt>
<dd>If TRUE, uses a subset of 1000 potential response profiles</dd>


<dt>parallel</dt>
<dd>If TRUE, computes in parallel</dd>

</dl>

oracle: Find Answer Profile that Minimizes Bias

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Arguments

Author

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