For those new to the job interview scene, this could be helpful
A typical job interview has a single candidate meeting with between one and three persons representing the employer; the potential supervisor of the employee is usually involved in the interview process. A larger interview panel will often have a specialized human resources worker. The meeting can be as short as 15 minutes; job interviews usually last less than two hours. The bulk of the job interview will be the interviewers asking the candidate questions about their history, personality, work style and other relevant factors to the job. The candidate will usually be given a chance to ask any questions at the end of the interview. The primary purpose is to assess the candidate's suitability for the job, although the candidate will also be assessing the corporate culture and demands of the job on offer.
Lower paid and lower skilled positions tend to have much simpler job interviews than more prestigious positions; a lawyer's job interview will be much more demanding than that of a retail cashier. Most job interviews are formal; the larger the firm, the more formal and structured the interview will tend to be. Candidates generally dress slightly better than they will be expected to wear to work, with a suit being appropriate for a white-collar job interview, but jeans being appropriate for an interview as a plumber.
Additionally, some professions have specific types of job interviews; for performing artists, this is an audition where the emphasis is placed on the performance ability of the candidate.
Psychometric testing may also be used in job interviews.