Description Usage Arguments Value
Computes the derivative of J (for 2PL, second derivative of test info).
1 | dJ(resp, parms, theta)
|
resp |
a matrix or data.frame containing the binary item responses with |
parms |
a named list or data.frame with elements |
theta |
the latent trait. |
length(theta)
vector of derivatives of J.
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.