Personality Test Don’t be surprised if your next job interview or performance review includes a personality test. Such tests have evolved into a $400 million business, with more than 2,500 tests currently available. The tests generally measure “soft” skills, such as sociability, ambition and organizational ability. Most are designed to help ensure a good fi t between an individual and a job. But while personality testing is playing an increasingly prominent role in the workplace, there is a wide range of opinion about its value and reliability. In a recent study by Spherion, for example, nearly one-third of workers (32 percent) agreed that personality tests can help determine if a prospective employee will fi t in at a company or organization. But an even higher percentage – 40 percent – said testing is not helpful in that way.