Hmm. Most international schools have exams of various kinds, usually at the end of the term. I am currently teaching a Year 5 class of 9 and 10 year olds, so I suppose that your daughter would be in Year 6. My present school in Doha uses something fairly horrible called Rising Stars. These exams will then generate National Curriculum levels in Science, Mathematics and English. These NC levels can then be compared with the levels a child in the UK would be expected to be achieving. However, you have written that you are interested in your daughter's progress "...as a native speaker" and therefore perhaps you are also interested in her proficiency in spoken English as well. Unfortunately the Rising Stars tests ( and other similar tests) do not have a spoken component. My guess would be that a PYP school would not be able to tell you very much about your daughter's progress, as the PYP and the English National Curriculum are rather different. I hope this is helpful.