Bias

Bias is any thought or action that discriminates or disproportionately favors one person or group of people over another based on superficial or inaccurate perceptions of the person or group.

Acts of bias can focus on almost any characteristic or belief, but the most common bias reports engage perceived race, gender identity, ethnicity, sexual orientation, religion, national origin, ancestry, and political beliefs.

Source: Know Your Rights and Responsibilities at Penn State University