Difference-equals-deficit is a concept in psychology and education that suggests differences in behavior, culture, or learning styles are often viewed as deficiencies or shortcomings. This perspective can lead to negative stereotypes and a lack of appreciation for diverse strengths and skills. Instead of recognizing and valuing diversity, it positions differences as problems that need to be fixed, rather than assets to be leveraged. This mindset can hinder inclusive practices and perpetuate biases in educational and social contexts.