Word.ws English Dictionary

purple hat therapy

purple hat therapy noun: any medical practice in which an established form of therapy is combined with an unlikely new addition and is then claimed to be effective because of the new addition, when in fact the effectiveness is due to the established component.

Noun

purple hat therapy (countable and uncountable, plural purple hat therapies)

  1. Any medical practice in which an established form of therapy is combined with an unlikely new addition and is then claimed to be effective because of the new addition, when in fact the effectiveness is due to the established component.
    Synonyms:
    PHT

Synonyms of purple hat therapy

Forms of purple hat therapy

pluralpurple hat therapies

Origin of purple hat therapy

Coined in a 2003 paper by Gerald Rosen and Gerald Davison, from the idea of wearing a purple hat in addition to other treatment.

Questions about purple hat therapy

What does purple hat therapy mean?
Purple hat therapy means any medical practice in which an established form of therapy is combined with an unlikely new addition and is then claimed to be effective because of the new addition, when in fact the effectiveness is due to the established component.
What part of speech is purple hat therapy?
Purple hat therapy is a noun.
What is the plural of purple hat therapy?
The plural of purple hat therapy is purple hat therapies.

Words near purple hat therapy in the dictionary

  1. purple guava
  2. purple guavas
  3. purple hairstreak
  4. purple hairstreaks
  5. purple hat therapies
  6. purple hat therapy
  7. Purple Hawke
  8. purple haze
  9. purple heart
  10. purple hearts
  11. purple helmet

Source and license

Adapted from Wiktionary: purple hat therapy (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “purple hat therapy.” Word.ws, https://word.ws/purple_hat_therapy. Based on Wiktionary, CC BY-SA 4.0.