Review: Toilet Training in Less Than a Day Tell us what you think. Write a review of this item and share your opinions with others. Please be sure to focus your comments on the product. Toilet Training in Less Than a Day By Nathan H. Azrin, Ph.D. & Richard M. Foxx, Ph.D. The idea or concept of using a potty doll to potty train a child was developed by two psychologist named Nathan H. Azrin, Ph. D. and Rich ... Please enter a title for your review: Type your review in the space below: Please enter your name: Please enter your email: (required) Display my email address with this review. Please enter your city: State: Country:

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