Influence: The Psychology of Persuasion · chapter 7 · id influence-c7-05-the-dade-county-phosphate-ban-

“The Dade County phosphate ban (1972) demonstrated reactance -- residents rated banned phosphate detergents as gentler, more effective, and better-pouring than residents in nearby Tampa where detergents were still available.”

holdsconfidence: high⚠ extracted by pipeline, re-audit pending

Receipts

Mazis, Settle & Leslie (1973), Elimination of Phosphate Detergents and Psychological Reactance, JMR 10DOI registry: valid

Dade County residents rated phosphate detergents as gentler, more effective, more powerful on stains, and easier pouring compared to Tampa residents.

Steindl et al. (2015), Understanding Psychological Reactance: New Developments and Findings, Zeitschrift fur Psychologie 223(4)DOI registry: valid

Reactance theory research confirms that restrictions on consumer choice consistently increase preference for restricted options, as demonstrated in field and lab studies including product bans.

This claim is a stable, citable object. If you can falsify a verdict, tell us — corrections are loud here.