Free practice · boolean · easy
Practice
Keep evidence in the same row
To describe one record, values should be read from that record's row rather than combined with another row.
Structured evidence checklist
Keep every value attached to its source context
- Source
- Authoritative table and refresh time
- Record
- Stable row identity
- Field
- Correct column and definition
- Scope
- Unit, period, filters, and population
- Reconcile
- Totals, notes, and a second view
Rows, columns, units, periods, filters, and refresh times determine whether table values can be combined or compared.