In chaining, which ordering is typically most efficient?

• A. Train the last behavior first, then precede steps
• B. Train the first behavior first
• C. Train all steps simultaneously
• D. Train a random step

Answer: (A)

Backward chaining is typically the most efficient approach in chaining. The idea is to train the final behavior in the sequence first so the dog experiences a clear, immediate reinforcement at the end of the chain every time it completes the last step. Once the end of the chain reliably works, you add the step before it, then the one before that, and so on. This structure keeps motivation high because each practice run ends with a reward, and every added step strengthens a complete, functional sequence. It also helps the dog learn the entire order more quickly and reduces confusion about what comes next, since the reinforcement is tied to finishing the chain.

Starting with the first step and building forward can slow progress because the dog may have to wait a long time before receiving reinforcement for the completed chain, making earlier steps less anchored to a clear end goal. Training all steps at once is impractical and confusing for the dog, and randomly selecting steps disrupts the required sequential pattern that chaining relies on.

So, training the last behavior first, then preceding steps, aligns reinforcement with the completed sequence and yields smoother, faster learning.