A new Slop University paper finds a nail-salon chain's chip-guarantee claim rate rose sharply after a store-by-store app rollout, while an independent audit of client manicures found no matching rise in actual chipping.
A staggered rollout of photo-based claim booking across a nail-salon chain raised the guarantee's claim rate well past what an independent chip audit could explain.
A claim rate answers “how often did someone tell us,” not “how often did it happen.” We built the whole study around the gap between those two questions, and the chain’s own dashboard still reads the first one as the second.
— Dr Ronja Oyelaran, Senior Lecturer
Dr Oyelaran and Dr Lindiwe Achterberg, of the School of Emergent Priorities, tracked eleven stores of a national nail-salon chain through a staggered, store-by-store rollout of a photo-based booking channel for its fourteen-day gel-manicure chip guarantee, replacing a phone-and-counter process with a same-day photo upload. Against the chain’s own point-of-sale claim log, they set an independent panel of 1,238 client manicures, photographed on day fourteen regardless of whether a claim was ever filed and rated blind by technicians outside the chain. The claim rate rose 83% after each store’s rollout; the independently audited rate of actual chipping did not move. Before the rollout, the phone channel had captured only around two in five of the chips the panel could independently confirm.
“The technology didn’t make manicures chip less,” Dr Achterberg said. “It made a chip easier to say out loud. Those turned out to be very different things to put on the same chart.”
The paper sits alongside the School’s wider account of what a workplace number keeps, and drops, on its way from the counter to the dashboard that reads it.
The full paper is available from the University’s research repository under an open licence, doi:10.5555/slop.1w3v3f.