erf {irtoys} | R Documentation |
Plot empirical response function
Description
Produces a plot of the empirical response function (proportion of correct responses at each possible sum score).
Usage
erf(resp, item)
Arguments
resp |
A matrix of binary responses to a test, with persons as rows and items as columns. |
item |
The item (column number in |
Value
None
Author(s)
Ivailo Partchev
Examples
erf(Scored, 3)
[Package irtoys version 0.2.2 Index]