Who did the testing ?

There is a child psychology section attached to the kinderspital in Zurich - a parent of my daughter's classmate works there..there seems to be plenty of systems to provide support, if you know where to look...and can access things with the right language...

I would separate the children and take them in one at a time to be tested, for a full 'barrage' of tests, if that is what you feel you need...

Where there any particular 'issues' arising at school that meant you went looking for an assessment ?

At 6 there are heaps of things going on - were your twins premature or born with health issues ? Have they had periods of hospitalisation ? Do you have specific educational goals for them, how are they managing at school in general ? Have they changed schools more than once, has all their schooling been in a consistent language, are you confident that their teachers are well-skilled and positive about teaching your child ?

Putting them into swiss school might cause more challenges, or it might actually solve them - the general impression is that primary schooling starts light and adds more and more as they go along here - so your boys might actually have a year or two two 'transition', and the focus will be on learning more than one language, and some other 'cultural' subjects like sports and handcrafts, which we find are more emphasised here than in Australia...less 'sink or swim' perhaps if you stream them through an 'intensive language' support programme, than putting them into a competitive international school classroom - who knows ?