My point is you need to watch the target language audio with no subtitle in your language.
If the choice is English-audio + Dutch-subtitle vs French-audio only, then of course there is no advantage to the second group. Try restricting the French-speaking kids to watch shows with English audio only.
If the choice is English-audio + Dutch-subtitle vs French-audio only, then of course there is no advantage to the second group. Try restricting the French-speaking kids to watch shows with English audio only.