The Human brain is built by billions of cells or neurons. At this very moment our planet is rushing around the sun at a speed close to 100 000 km/h. Is this worth to know? Do you become more clever or happier or more content if you know things like that? Possibly not. We, most of us, constrain our sights and our thinking to facts that are obvious, that we can experience by our own senses. We are nearsighted in the meaning of that we use just a small part of our brains in order to plan, to organize things, to work and to enjoy parts of life. In that sense we believe that we are in control, and we are satisfied by that. But this degree of control is based upon what we consciously are able to make up. In a way – the conscious part of our brain work is playing a trick to us: it presents the world in a way that is quite a small part of what it really is. The same goes for psychological testing: we like to believe that we could measure everything going on within a Human Being, but the measurements are just very limited tools when you are going to understand all dynamic patterns inside and in between Humans. We try to get control, but are we in control?
Hans Gordon's blog
Observationer och reflexioner om människan i det nutida samhället
Hans Gordon's blog 
what you typed is very interesting especially the last part where you talk about your test about how they are limited tools. In my perspective, there is no way that you can be 100% right in selecting individuals for both your airline customers as well as your hotel customers. Yet, what you do, is probably the maximum that one can go for in order to study about human behaviour. I believe you are in control, even though not at a full range, but to a certain extent that is required…
Thanks for your comment. My point is that there is a lot more of information needed about an individual than test results only. This is very important. And just a small note: I am not working for hotels, but for one of the biggest hospitals in Sweden.