When we had our dd7 tested it was because it was very obvious she needed a change in her education plan. With dd6 we are having her tested (this week as a matter of fact) because we want to know what she could be capable of, and for us the more information the better. dd6 is not as obvious as her sister, but she does lots of things that say "gifted" she also had eye problems that may have slowed her down. Since we're homeschooling this year I'm finding this to be true. Another thing I find her doing is not wanting to compete with her older sister (who is smarter type of thing) so I think she just lets her older sister hold the title.