How personality tests may be filtering out the best candidates

If you applied for a job in the U.S. recently, there’s a good chance that you were subjected to a personality test. In some areas, the tests have become ubiquitous as U.S. employers seek ways to make the hiring process more efficient.

That’s unfortunate, because the tests might be filtering people out according to traits that bear little or no relation to their potential as employees.

New types of vetting have proliferated as the job application process has moved online. In white-collar industries, hiring managers build and deploy algorithms that decipher resumes, check people’s social media profiles or have others do so, and even use artificial intelligence to analyze interviews. For minimum-wage work, personality tests are designed to find the people most likely to stay in jobs, reducing the turnover that can be a major expense for call centres and retail stores.

Ideally, all the innovation saves time and money for everyone. But hiring algorithms don’t always perform as advertised. There’s reason to think they tend to repeat and even amplify historical patterns of discrimination — though this can be hard to ascertain, given that their code is usually proprietary and regulators don’t have the technology to test it even if they could.

Personality tests, too, can be biased in undesirable ways. They can, for example, filter out people with a history of mental illness — becoming a sort of health exam, which is prohibited as part of the hiring process under the Americans with Disabilities Act.

Job applicant Kyle Behm personally experienced the discriminatory effects of personality tests (as reported in the Wall Street Journal). As a college student in 2012, he sought work at a Kroger store but failed a test designed by the company Kronos, which licenses hiring software to many large stores.

Behm was unusual in a few crucial ways. First, he had a friend at

Kroger who told him he had failed (most people never hear back). Second, he recognized some of the questions from a mentalhealth assessment he had taken when being treated for bipolar disorder. Third, his father, Roland Behm, was a lawyer.

After getting Kyle to apply to six more companies that used the same personality test, which he duly failed, Roland filed complaints — some jointly with the Equal Employment Opportunity Commission — against all seven companies for violating the ADA.

There’s increasing evidence that personality tests aren’t very successful at finding good employees. A recent study found that the test results are poorly correlated with job performance, especially when compared with other types of assessments.

Thanks to the lawsuits, some firms appear to be reconsidering their practices. One of the companies Kyle applied to, Lowe’s, said it had changed its online application process “to ensure people with mental health disabilities can more readily be considered for opportunities.”