I am currently undertaking my dissertation, using Harding et al’s generic approach in a judgement bias test using dogs. The study uses a novel, portable apparatus to train an operant, auditory discrimination task and subsequently test cognitive bias. Dogs are required to perform an auditory discrimination task, and their latency to respond will be recorded to reveal their expectations and therefore their judgement bias. The study will collect data on judgement bias in a range of ages in dogs, and will investigate levels of optimism and pessimism and explore factors that may affect the expression of judgement bias.

If anyone has any relevant information i'd appreciate it :-)