The conditional correct response rate (CCRR) represents the ratio of the students
who passed Item C (consequent item) to those who passed Item A (antecedent item).
This function is applicable only to binary response data.
Usage
CCRR(U, na = NULL, Z = NULL, w = NULL)
# S3 method for default
CCRR(U, na = NULL, Z = NULL, w = NULL)
# S3 method for binary
CCRR(U, na = NULL, Z = NULL, w = NULL)
# S3 method for nominal
CCRR(U, na = NULL, Z = NULL, w = NULL)
Value
A matrix of conditional correct response rates with exametrika class.
Each element (i,j) represents the probability of correctly answering item j
given that item i was answered correctly.
Arguments
U
Either an object of class "exametrika" or raw data. When raw data is given,
it is converted to the exametrika class with the dataFormat function.
na
Values to be treated as missing values.
Z
Missing indicator matrix of type matrix or data.frame. Values of 1 indicate
observed responses, while 0 indicates missing data.
w
Item weight vector specifying the relative importance of each item.