Originally Posted by ss62
I checked the link, but cannot find information on what tests are suitable for a 7 year old.
The linked qualifications for DYS show three different types of tests:
1) IQ Tests
2) Achievement Tests
3) Talent Search / College Placement Tests
If you are interested in an IQ test, look at the options listed in the first grouping. Your test administrator could help guide the specific test selection.

Two great resources which many parents of gifted children regularly utilize for quick answers:
1) Hoagies Gifted Education Page.
Hoagies' has a webpage dedicated to describing different tests and assessments: Tests, Tests, Tests.
2) The Davidson Database.
The Davidson Database has an index of articles on the topic of IQ Tests.

IQ tests are discussed from time to time on the forums.
- Here is a roundup of info on IQ tests.
- aeh provided great information in response to your inquiry last year.

If you are looking for tests which may support education acceleration (as mentioned in last year's inquiry) look to those recommended in the Iowa Acceleration Scale (IAS-3): ability, aptitude, and achievement tests.