The human mind must think with the aid of categories. Once formed, categories are the basis for normal prejudgement. We cannot possibly avoid the process.
Orderly living depends on it.
When you begin to discuss biased levels of performance and discrimination , the first thing that you must do is find the mechanism that makes it possibles to categorize people into high or low on performance scales. The mechanism that is most responsible for that in the workplace is Appraisal. There are two methods of appraisal that can be used in the workplace, and they are Objective Measures and Subjective Measures . Objective measures are used to do things such as count weekly sales or even average keystrokes per hour depending on your job. Subjective measures are more often what is the cause of discrimination and these subjective measures usually take the form of interviews.