Anyone who could insert more than a certain number of brads in the holes within two minutes invariably turned out to be a good meter assembler, and anyone who could insert just slightly fewer did not - regardless of the amount of training. The fact that the scores could not be improved by training might mean that some aspect of the ability to perform well on this task was genetically determined. They were determined to find out. So they set up a research foundation, which abides until today. To date, the Foundation has uncovered 19 aptitudes.
Aptitudes have nothing to do with preferences.
One of the aptitudes is called object observation. I scored in the 5th percentile. Knowing these scores saved our marriage. In other words, her kitchen had hundreds of pixels, mine had one. I will memorize those things.