fisherTestInfo | R Documentation |
Calculates the total information gained for a respondent for all answered items, conditioned on θ.
fisherTestInfo(catObj, theta)
catObj |
An object of class |
theta |
A numeric indicating the position on the latent trait. |
The function fisherTestInfo
returns a numeric indicating the total information gained for a respondent,
given a specific answer set and the current estimate of θ.
This function is to allow users to access the internal functions of the package. During item selection, all calculations are done in compiled C++
code.
Haley Acevedo, Ryden Butler, Josh W. Cutler, Matt Malis, Jacob M. Montgomery, Tom Wilkinson, Erin Rossiter, Min Hee Seo, Alex Weil
fisherInf
## Loading ltm Cat object data(ltm_cat) ## Store example answers setAnswers(ltm_cat) <- c(1,0,1,0,1, rep(NA, 35)) ## Fisher's test information for answer profile fisherTestInfo(ltm_cat, theta = 2)
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