Using QR codes to access food information: A behavioural study with European consumers
Gaudeul A; Krawczyk M · 2026 · Preprint
WASTE classifies this as Negative / Null Result Report · AI classification, approximate
The study found no significant effect — useful as a negative control or null benchmark for your own design.
Abstract (excerpt)
Abstract We conducted an online experiment with 3420 participants in Bulgaria, Germany and Spain to evaluate the consequences of digital access to food information via QR codes. Participants made incentivized choices between food products…
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Metadata source: Europe PMC · DOI 10.21203/rs.3.rs-8549197/v1