Description Usage Arguments Value Examples
Prints Cross-wave transition matrix and returns the vector behind the matrix. Missing values are treated as ignorance. Don't know responses need to be coded as 'd'.
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pre_test_var |
Required. A vector carrying pre-test scores of a particular item. Only |
pst_test_var |
Required. A vector carrying post-test scores of a particular item |
subgroup |
Optional. A Boolean vector indicating rows of the relevant subset. |
force9 |
Optional. There are cases where DK data doesn't have DK. But we need the entire matrix. By default it is FALSE. |
a numeric vector. Assume 1 denotes correct answer, 0 and NA incorrect, and d 'don't know.' When there is no don't know option and no missing, the entries are: x00, x10, x01, x11 When there is a don't know option, the entries of the vector are: x00, x10, xd0, x01, x11, xd1, xd0, x1d, xdd
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