An interesting study of why unstructured interviews are so alluring

Yes, interviews are not accurate, so find more objective ways of hiring.

The Hardest Science

A while back I wrote about whether grad school admissions interviews are effective. Following up on that, Sam Gosling recently passed along an article by Dana, Dawes, and Peterson from the latest issue of Judgment and Decision Making:

Belief in the unstructured interview: The persistence of an illusion

Unstructured interviews are a ubiquitous tool for making screening decisions despite a vast literature suggesting that they have little validity. We sought to establish reasons why people might persist in the illusion that unstructured interviews are valid and what features about them actually lead to poor predictive accuracy. In three studies, we investigated the propensity for “sensemaking” – the ability for interviewers to make sense of virtually anything the interviewee says—and “dilution” – the tendency for available but non-diagnostic information to weaken the predictive value of quality information. In Study 1, participants predicted two fellow students’ semester GPAs from valid background information like…

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About Joan E. Strassmann

Evolutionary biologist, studies social behavior in insects & microbes, interested in education, travel, birds, tropics, nature, food; biology professor at Washington University in St. Louis
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