Generally speaking, there are two types of sexual harassment, “quid pro quo” and hostile environment.
Quid pro quo (meaning “this for that”) sexual harassment occurs when it is stated or implied that an academic or employment decision about a student or employee depends upon whether the student or employee submits to conduct of a sexual nature. Quid pro quo sexual harassment also occurs when it is stated or implied that an individual must submit to conduct of a sexual nature in order to participate in a University program or activity. So, for example, if an employee is made to believe that a promotion is likely if the employee goes on a date with the employee’s supervisor, the employee is possibly being subjected to “quid pro quo” sexual harassment. (Office of Institutional Equity, University of Michigan)
Hostile environment sexual harassment occurs when unwelcome conduct of a sexual nature creates an intimidating, threatening or abusive working or learning environment or is so severe, persistent or pervasive that it affects a person’s ability to participate in or benefit from a University program or activity. While a person engaging in harassing behavior most often has some form of power or authority over the person being harassed, that is not always the case. The harasser can be a peer of the person being harassed. Sometimes the harasser is harassing a person who has power over them. For example, a supervisee can sexually harass a supervisor or a student can sexually harass a faculty member (Office of Institutional Equity, University of Michigan).