I did one of these psychometric tests once as a practice for job hunting when i was at uni. The results showed that in maths I was bog standard average, In verbal ability I was 'in the top 2 percent of the undergraduate population' but in visual spatial ability I was so bad i was off the bottom of the scale (i.e. not in the bottom 1% but much, much lower). Not sure what that means though.

P.S. I'm a singer

Catrin