This chapter focuses on the development of statistics cognition, framing the discussion on the need to enhance cognitive development. We argue that by understanding how cognitive processes have been shown to inhibit learning, we can differentiate between types of errors in statistics education. By understanding the operationalized difference of a bias and misconception, those interested in statistics education can identify the sources of these errors, and subsequently develop a means to attenuate their effect. Using dual process theory, we argue that classifying the source of errors and differentiating between biases and misconceptions educators can use errors to enhance the development of statistics literacy, reasoning, and thinking.