MEANING
A missing-data mechanism where missingness depends on observed information, not unobserved values after conditioning on observed data.
Use it for
Use when missingness can be explained by observed data, conditional on those data.Explain a missing-data assumption in statistical modeling or reporting.
Words that belong together
- assume missing at random
- missing-at-random mechanism
- data are missing at random
On the page
The analysis assumed data were missing at random after accounting for baseline score and site.
Nearby words
Opposite meanings
Word forms
- Base
- missing at random
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Usage notes
MAR is a statistical assumption, not a claim that missing values are evenly distributed or unpredictable in everyday terms; it differs from MCAR and MNAR.
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