Exact(8)
The same trends were observed for all methods regarding statistical power, whatever the type of missing data considered (intermittent missing items or missing forms).
I missed her even when she was only away for a few hours, so this type of "missing" is peculiar, unnatural.
This type of missing information imposes a challenge for the MLC classification task.
This type of missing data problem is referred to as not missing at random or NMAR.
This type of missing data is referred to as missing at random or MAR.
However, the second type of missing data likewise is not a problem for parameter estimation, if some conditions are met.
The second (and also the third) type of missing data concerns missing values in data that are expected to be observed.
Missing data in the individual response pattern (the 0/1 answers of persons to test items) constitute the second type, and missing data in background information constitute the third type of missing data.
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