Most people, without practice, are not a range as wide as "very disagreeable" to "very agreeable", most people are flexible around a point, to a lesser extent if they've never paid attention to how they behave and never tried to directly practice behaving differently.
Sure, though I certainly see pretty wide variances in myself based on my environment. If I’m happy and in a good environment then I tend to be very agreeable. As my stress and unhappiness go up, I tend to get pretty disagreeable.
I had one job that was absolutely awful, and to be brutally honest my attitude sucked. I wasn’t as nice to my coworkers as I wish I had been. I wasn’t a complete asshole or anything, and my behavior was never raised with me as being problematic, but I’m not proud of how I acted through that time.
But over the course of a fairly long career I’ve gotten a lot of comments about how laid back and friendly I am, and how I tend to go out of my way help people. I like to think that’s who I really am, but I can definitely be unpleasant if I’m miserable.
First, the trait examined is a range and is also situational. Second, your self knowledge of your ranges and situations is also variable and introduces more error. Third, the test introduces more error, it seems. Nobody on this thread has given any evidence this is a useful hiring tool.
My impression is hiring is difficult and there's no shortage of companies pretending to solve it with science, but it's not solved and it's not science.
This test addresses some of those problems by not only posing the personality questions to just the person you're trying to study the personality of but also friends and co-workers that know them. You can capture that range there. If you're always a jerk at work but nice at home this would capture that You just have to dig into the details.
