Spectrogram
A physical polling technique where participants position themselves along a line in the room based on their degree of agreement with a statement. One end = strongly agree, the other = strongly disagree. Similar to Constellation but specifically focused on agreement/disagreement spectrums. It makes the distribution of opinion in a group instantly and dramatically visible.
How to run it
- 1
Clear floor space and identify or tape a line from one end to the other.
- 2
Label the ends: 'Strongly Agree' and 'Strongly Disagree'.
- 3
Read a statement. Participants move to position on the spectrum (30 seconds).
- 4
Once positioned, invite people at different points to explain their position (1–2 minutes).
- 5
After hearing others, ask: 'Would anyone like to move?'
- 6
Read the next statement and repeat.
Tips
Include a few statements where the group is likely to be divided — unanimous consensus reveals nothing.
'Would anyone like to move?' after hearing others models intellectual openness without pressure.
Works with any group size if the room is large enough.
Variations
Run seated with a show-of-hands gradient for less mobile groups. Anonymise by having everyone close eyes and walk to their position simultaneously. Run as a 2D constellation: two axes create four quadrants, and participants position themselves in the 2D space (great for mapping values or priorities). Use for anonymous voting: everyone moves with eyes closed.
Where it fits
Related methods
Further reading
Frequently asked questions
When should I use Spectrogram?▾
Use Spectrogram when you want to: Revealing group opinion on complex topics; Opening sensitive discussions; Values exploration; Team alignment sessions; Opening discussions on complex topics; Revealing group diversity of opinion; Energising breaks; Value alignment workshops.
How long does Spectrogram take?▾
Spectrogram typically takes 15–30 minutes.
How many participants does Spectrogram work for?▾
Spectrogram works best for groups of 5–60 participants.
What materials do I need for Spectrogram?▾
To run Spectrogram you will need: floor space, tape line (optional), labels for poles.
How difficult is Spectrogram to facilitate?▾
Spectrogram is rated beginner — straightforward to facilitate even without prior experience.
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