Diagnostic question · Influence
How add-ons are offered
Checks that extras are offered once the main item is chosen, singly and not pre-selected, with the total kept visible.
Pay
Plain label: add-on sequence question
When buyers can add extras, do those appear only once the main purchase is chosen, one by one, not pre-selected, with the total updating as they go?
Sources
Influence · Robert Cialdini
Ch.1, p.10 · Ch.1, p.11
Source IDs: INF-Q-014INF-T-FN-07
Book content is paraphrased, never quoted at length. Last verified October 24, 2026.
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