Shelf Eye-Tracking TestSample · In person · Sparkling water aisle
Central location test · eye-tracking glasses
n=40, 20 per shelf layout

Tidewell wants to know whether a new shelf layout would help it at retail. We built two full-size sparkling water sets in our facility: the current set, where Tidewell sits at the right end of the aisle, and an alternative set that moves it to the center at eye and waist level. 40 category shoppers wore eye-tracking glasses, 20 per set. Each looked at the shelf freely for 10 seconds, then shopped it and chose the one 8-pack they would buy.

Tidewell share of purchases

40%+25 pts

Alternative set. Current set: 15% (3 of 20 vs 8 of 20)

Shoppers seeing each Tidewell pack

5.9 of 20

Up from 2.9 in the current set

Time to first look, Tidewell

3.8 s

Down from 5.1 s in the current set

Average price paid

$6.30

Down 2.3% from $6.45. Tidewell is priced below the category leader

Share of purchases by brand measured

Tidewell goes from a tie for third to first. It takes one purchase each from five competitors, so no single brand carries the loss. Counts are out of 20 shoppers per set, so read the size of the gain as directional.

Purchases by shelf measured

Eye level wins in both sets. The alternative set spreads a little more buying to the waist and bottom shelves.

How the test works

FormatIn person, central location. Two real shelf sets built side by side in the facility.
Who40 adults 21 to 54 who bought sparkling water in the past month. Randomly assigned to one set.
EquipmentLightweight eye-tracking glasses, calibrated for each shopper before they reach the aisle.
Task10 seconds of free viewing, then shop the set and take the one 8-pack you would buy.
MeasuresWho looked at each pack, time to first look, number of looks, total looking time, what was bought.
OutputsHeat maps, spotlight maps, package-level scores, a side-by-side read of the two sets.

Who took part measured

Quotas kept age, gender and buying frequency matched across the two sets.