In the research I’ve seen on selection metrics work-sample tests tend to be the single most powerful instrument used by themselves, and are part of the optimal combination of instruments to use.

Work Sample Tests Work sample tests are hands-on simulations of work that are physically and/or psychologically similar to the actual work performed on the job.

Work sample tests are now recognised as one of the most effective predictors of future job performance, according to a report released today (Wednesday 30 June) by IRS Employment Review, published by ...

5. Consider conducting work sample tests. Work samples and portfolios that candidates often submit with their applications don’t always paint the full picture of one’s fit for the job.

Another classic deep-dive tool is the work-sample test—performing a mock task from the job, like writing code for a software developer or talking to a (fake) irate caller for a customer-service rep.

Schmidt and Hunter found that the best predictor of a candidate's success is a work sample test, followed closely by a test of general cognitive ability and a structured interview.