- Survey comparison: compare several surveys with each other, typically the waves of a tracker.
- Questions comparison: compare similar questions within the same survey.
Comparing surveys or waves
1
Select the surveys
Choose the surveys to compare. Add more via the + (e.g. wave 1, wave 2, wave 3).
2
Order the display
Set the order of the surveys, from left to right.
3
Rename the waves
Replace each survey’s technical name with a clean label (e.g. “Wave 1”).
4
Choose the display
Stacked bars, lines, vertical bars per wave or grouped horizontal bars; in individuals or in percentage.
5
Apply a filter
Restrict to a subtarget if needed (e.g. the under-35s).
Question matching
A tab summarizes all the questions per survey, the number of variables the matching is based on, and flags the labels that differ. The rules to know:- Questions are matched on the variable name, whatever their position in the questionnaire.
- Within a question, items are matched on their label.
- Adding an item is not a problem: the other items keep comparing, whatever their position in the question — and whatever the position of the question.
Filters across waves
A filter only works on a wave if it is present in that wave’s preferences and carries the same variable name on all the waves.The comparison settings
The comparison has its own settings, independent of the flat analysis:- Optional total column.
- Its own significance test (e.g. comparing each wave to the previous one).
- Basis for displaying results (questionnaire flow or total base).
Comparing similar questions
Within the same survey, you can compare questions of the same nature (e.g. all the appeal questions, or the purchase intent ones).- Manually: select the questions to compare.
- Automatically: give the same variable name to all the similar questions. The platform groups them and compares them in a few clicks.
Merge the results of several surveys
To stack the respondents of several surveys into a single base, rather than place them side by side.