One of the challenges in animal personality study is finding a suitable method to measure personality. Here, we outlined three methods (traits rating, behavioral coding, and experimentation) used in animal personality measurement. We found that traits rating was commonly used to test large‐sized animals (e.g., primates), behavioral coding was conducted for both large‐ and small‐sized animals (e.g., primates, birds, rodents, and fishes), whereas experimentation was more used for small‐sized animals (e.g., rodents, birds, amphibians, and inse...
