JCRR {exametrika} | R Documentation |
Joint Correct Response Rate
Description
The joint correct response rate (JCRR) is the rate of students who passed both items. This function is applicable only to binary response data.
Usage
JCRR(U, na = NULL, Z = NULL, w = NULL, ...)
Arguments
U |
U is a data matrix of the type matrix or data.frame. |
na |
na argument specifies the numbers or characters to be treated as missing values. |
Z |
Z is a missing indicator matrix of the type matrix or data.frame |
w |
w is item weight vector |
... |
Internal parameters for maintaining compatibility with the binary data processing system. Not intended for direct use. |
Value
A matrix of joint correct response rates with exametrika class. Each element (i,j) represents the proportion of students who correctly answered both items i and j.
Note
This function is implemented using a binary data compatibility wrapper and will raise an error if used with polytomous data.
Examples
# example code
# Calculate JCRR using sample dataset J5S10
JCRR(J5S10)