I think it is a useful tool for many parents. Certainly, I would have bought it, when I first started wondering whether my then three year old was gifted or was I just imagining things.

Dr Ruf extensively knows my child and I believe, my child's test results plus my playing with the site has been incorporated along with others to bench mark the results. We have done btw three rounds of beta testing plus various feedback.

Is everything perfect with this online assessments, probably not... But I still think this online assessment is very helpful for many parents, who are trying to figure out whether their preschooler / preker / ker is gifted or not. As I wrote, I certainly would have spent the 45 dollars on it, if it had been available to us, as a tool at that time.