The Inventory for Déjà vu Experiences Assessment (IDEA)
In this article the development, utility, reliability and validity of the Inventory for Déjà vu Experiences Assessment (IDEA) are described. The IDEA is a 23-item self- administered questionnaire consisting of a general section of 9 questions and a qualitative section of 14 questions. The latter questions comprise 48 topics. The questionnaire appeared to be a user-friendly instrument with satisfactory to good reliability and validity.