Do the vast majority of people who pass your personality tests turn out to be exceptional performers? If you answered “no,” then your tests aren’t testing. Recruiters and hiring managers are led to believe people who pass their personality tests will be successful. Unfortunately, practical experience shows that about 50% of employees and 70-80% of managers still fail to meet expectations. It’s a hard concept to grasp, but don’t be fooled by statements like: “The XYZ is not a hiring test … but it can be used to help make hiring decisions.” That’s like saying, “Ignore the rattle … the snake’s harmless.”
Cause? What Cause?
Here is an example of traits often found in personality tests: dominance, compliance, extraversion, judgment, sensitivity, curiosity, conscientiousness, humility, and determination. First, we’ll show you a silly-science example: 1) divide producers into groups (e.g., high and low performers); 2) give both groups the same personality test; 3) see which scores differ; and finally, 4) use candidate scores to predict group membership.
After impressive number-crunching, suppose the A-list group had higher average dominance, compliance, and extraversion scores; the B-list group had higher average curiosity, conscientiousness, and determination; and, both had the same average judgment, humility, and sensitivity scores. Is this enough evidence to use the results for selection or promotion? Noooo.
Lies, Damn Lies, and Statistics
Anyone can compare two sets of numbers and tell you whether they correlate; but, it takes careful study to know whether A actually leads to B. keep reading…



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