The Passage Rate for each student is calculated as their Number-Right Score (NRS) divided by the number of items presented to them. This function is applicable only to binary response data.
The passage rate is calculated as: $$P_i = \frac{\sum_{j=1}^J z_{ij}u_{ij}w_j}{\sum_{j=1}^J z_{ij}}$$ where:
\(z_{ij}\) is the missing response indicator (0/1)
\(u_{ij}\) is the response (0/1)
\(w_j\) is the item weight
passage(U, na = NULL, Z = NULL, w = NULL)# S3 method for default
passage(U, na = NULL, Z = NULL, w = NULL)
# S3 method for binary
passage(U, na = NULL, Z = NULL, w = NULL)
A numeric vector containing the passage rate for each student. Values range from 0 to 1 (or maximum weight) where:
1: Perfect score on all attempted items
0: No correct answers
NA: No items attempted
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.
Values to be treated as missing values.
Missing indicator matrix of type matrix or data.frame. Values of 1 indicate observed responses, while 0 indicates missing data.
Item weight vector specifying the relative importance of each item.
# using sample dataset
passage(J15S500)
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