Chapter Five worksheet
What Did Not Match Is the Finding
One sitting, and you need the two exports from the previous chapter.
1
Decide the unit before you look.
The unit
2
Match on whatever the two sources genuinely share, and write down what that is.
Matched on
3
Count three numbers, not one.
Matched
Only in the first source
Only in the second source
4
Put every unmatched record in a separate list with an empty reason column.
5
Fill the reason column by asking a person, then sort into the three buckets.
| Unmatched record | Only in | Reason, from a person | H | M | U | Date asked |
|---|---|---|---|---|---|---|
Harmless, meaningful, unexplained.
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