One Question, Followed Down Every Wave
The Research Thread spine pins the sample question at the top, then follows it wave by wave — breaks and new measures called out beside the line instead of buried inside a grid.
“How satisfied are you with the product?”
“How easy was the product to use this week?” introduced
Wording changed to “…with the product overall?”
“How much value does the product deliver for the price?” introduced
Scale changed 0–10 → 5-point — non-mergeable without adjustment
- ST-TH-01Satisfaction — comparable across 4 waves, wording note at Wave 3
- ST-TH-02Usability — new at Wave 2, comparable since
- ST-TH-03Recommendation Intent — Wave 4 scale change marked non-mergeable
Restore Control re-establishes all 3 Research Threads and marks the Wave 3 wording change and Wave 4 scale change as non-mergeable — annotated, never silently merged.
Three Research Threads, One Continuous Ledger
Every wave attaches to an existing thread instead of starting a new spreadsheet — status shows whether the trend line is clean, adjusted with a footnote, or flagged as non-mergeable.
Comparable across 4 waves — wording note annotated at Wave 3
Wave 4 scale change marked non-mergeable without adjustment