When chosen correctly within the correct system, personality tests can be used to enrich our lives in many ways. When chosen poorly or relied upon exclusively for classification or decision making, they can often have a negative impact.

I wish the author had gone further, though I understand it would have pushed the limits of his wife’s tolerance, and gone on some computer-arranged blind dates!

Which reminds me, one concern I would have in both arenas is a certain blandness and predictability that might result from finding matches that are “too good.” Do we really want spouses who are just like us? Do we really want all employees to fit specific personality profiles?

I say: “variety is the spice of life,” “vive la difference,” and “be careful what you ask for, you just may get it.”

1) Both systems require accurate personality measurement;

2) Both systems presume to know what makes a good match based on the personality test results.

Dating services (and hiring systems) eventually could acquire large enough databases to longitudinally study the accuracy of their predictions in terms of the correlation between their prediction of a good match and some measure of ultimate outcomes (perhaps durable marriages, if the service is pitched to people seeking that, and long-term productive employment).

Until then, how can you defend in court the use of such a process for hiring if it has a disparate impact?