Flying-saucer,
Remember, the real purpose of aptitude tests is only to select a small group of people (who will be further interviewed) from a large group of applicants.
The company is not trying to select the best applicants - just in reducing applicant numbers to something reasonable. If they were really interested in selecting the best applicants, there would be lots of follow-up studies to tune the tests - never heard of that happening.
So don't put any concern in test results - continue on just the same.
(I have a similar story to ramble-ons' - close friend - current aircrew - who did the aptitude test with his airline and was told don't-both-calling-us