Bias can creep into algorithms and data in various ways, making it essential to prioritize ethics by design from the outset. This involves understanding the different types of bias, such as pre-existing, technical, and emergent biases, and being mindful at every stage of development to avoid bias. To test for bias, developers must simulate scenarios that can reveal potential issues, use tools like AI Fairness 360 and Watson OpenScale, and engage in continuous auditing and testing. The extent of testing required depends on the size of the training data, and it's essential to minimize bias as much as possible while acknowledging that complete elimination may not be feasible. Developers have an ethical obligation to prioritize transparency and fairness in their efforts, particularly when developing Conversation Intelligence systems that rely heavily on algorithms and data.