Dog aggression assessments determine the fate of millions of shelter animals. Science-based assessment tools and context-sensitive approaches are improving accuracy and saving lives.
The welfare stakes of dog aggression assessment are high. Inaccurate assessment leads either to euthanizing treatable dogs or placing dangerous dogs in unsuitable homes — both welfare failures. Modern behavioral science recommends multi-context assessment over time rather than single test events, with recognition that shelter stress inflates false positives (dogs appearing aggressive who are not in home contexts). Assessment should distinguish fear-based from other aggression types, assess the dog's capacity to de-escalate, and evaluate the environment and management potential of adopters. Rather than pass-fail outcomes, assessments should generate detailed behavioral profiles matched to adopter capabilities. Behavior rehabilitation programs can resolve many aggression presentations when combined with appropriate adopter education and long-term support networks.