Less effort, clear feedback
Labor illusion
Seeing the work behind a result makes it feel more valuable, even with a wait.
Limited evidenceSupporting studies exist, but they are few and conditions matter.
Example
On a travel search site, people preferred a longer wait that showed the search at work over instant results.
Why it works
Visible effort reads as work done on your behalf, and people value the result more.
On the web
While calculating a quote or result, show the steps the system really performs, such as matching criteria or checking stock.
When it backfires
Showing steps that do not happen, or padding the wait, is deceptive. Displayed steps must match real processing.
Sources
When a site signaled its effort, people sometimes preferred a longer wait over identical instant results.
Buell, R. W., & Norton, M. I. (2011). The labor illusion: How operational transparency increases perceived value. Management Science, 57(9), 1564-1579. Open source