Which of the following is not a collar type used for aversive training?

Padded collars are designed for comfort and safety, making them a tool for positive training approaches rather than aversive training methods. They provide cushioning around the dog's neck, allowing for a gentler fit when a leash is attached, and are often used in accordance with Fear Free practices which emphasize minimizing stress and anxiety during training.

In contrast, prong collars, choke chains, and shock collars employ aversive strategies that can lead to fear, anxiety, and even aggression in pets. These devices aim to correct undesirable behaviors through discomfort or pain, contrasting with the principles of positive reinforcement that are central to Fear Free techniques. Understanding the importance of using tools that promote emotional well-being in pets helps ensure a more harmonious training experience.