Employment law discrimination is taking work-related actions against an employee based on their age, race, skin color, religion, national origin or gender. The categories listed are called protected classes. Employers cannot use employees' membership in a protected class when deciding how to treat employees (disparate treatment) or when making promotion or advancement decisions (disparate impact). Some federal laws only apply to businesses that employ a certain number of people. The following case is an example of the reasonableness test applied by courts in a discrimination case. If employees are harassed by co-workers, supervisors, or agents of the employer because of their membership in a protected class, the employer may be held vicariously liable for discriminating. and creating a hostile work environment. Sex discrimination is the most common form of harassment and the most common type of discrimination lawsuit. Even if the harassment of an employee is committed without the employer's knowledge, the employer may be held responsible. The employer can also...