Which means that by any definition, there is no way of telling what temperament, size, coat your dog will have. Since there are many different 'types' of Goldendoodles, it is very hard to tell at puppy hood what your dog will be like. But, by doing research and by meeting the dam and sire of your puppy, you should be able to get a glimpse of what your puppy's temperament may be like when he/she grows up. The reason why there are over 450 standards and registered breeds out there is so that people can read about the standard of the dog and get a pretty good idea of what their dog will be like when fully grown. When mixing breeds together, there is no telling what the dog could turn out to be like. That is a risk you take by getting a mixed breed dog.