Final answer:
A positive stereotype can have harmful effects by perpetuating generalizations, leading to discrimination and limited opportunities.
Step-by-step explanation:
A positive stereotype can have a harmful effect because it perpetuates generalizations about a particular group, which can lead to unrealistic expectations and discriminatory practices. For example, the stereotype that all Asians are smart and capable can lead to stigmatization of Asian individuals who do not meet these expectations, and it can result in a lack of government assistance and educational and professional discrimination. These harmful effects can limit opportunities and create unfair treatment based on stereotypes.