Walk the Missing Data Triage
Triage missing data by checking mechanism, segment pattern, analysis impact, and disclosure needs.
decision-path sort-buckets common-trap-callout 27% blank The missing values are not evenly spread. They cluster in the channel marketing wants to scale. If Chen treats blanks as random, the model may bless the weakest data source. ASA integrity of data and methods Mechanism -> Pattern -> Impact -> Disclosure Missing data handling is a claim about what the data still represent. Shortcut Fill blanks and move on. A defensible missing-data decision. Treat missingness as evidence about the data collection process. 01 Mechanism 02 Pattern 03
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