I heard this from veterinary behaviorist, Patrick Melese, DVM, MA, DACVB:
To use shock as an effective dog training method you will need:
A thorough understanding of canine behavior.
A thorough understanding of learning theory.
And if you have those three things, you don’t need a shock collar. –Author unknown
Leah Roberts has collected an extensive reference list from a variety of sources of tools or methods to avoid:
alpha theory, and
the dominance myth.
“Being the Pack Leader” is Old-Fashioned BUNK
If a dog trainer tells you that your problems with your dog are due to your not being a pack leader, that person has just shown that:
1. They haven’t paid any attention to the research about wolves and dogs.
2. They don’t know much about how animals learn.
3. They probably don’t have any credentials to speak of.
4. They are hanging on to a “sticky” idea just because it sounds right and is an easy sell.
But in any case, they are incorrect. You need to know why, so their ideas don’t hurt your dog.
Check out THIS BLOG by one of my colleagues.