Seems very odd that the only statistically significant difference was between the native speakers of the test designer's native language and the non-native speakers - China/Russia/India had no significant difference from each other.
Leads me to believe that maybe whoever was translating the test wasn't using the same idioms and figurative language that native speakers of Mandarin/Russian/Hindi would use.
You can't compare different facets of computer science to different forms of cuisine. People spend their entire lives just learning one form.
Seems very odd that the only statistically significant difference was between the native speakers of the test designer's native language and the non-native speakers - China/Russia/India had no significant difference from each other.
Leads me to believe that maybe whoever was translating the test wasn't using the same idioms and figurative language that native speakers of Mandarin/Russian/Hindi would use.