Good point. I guess I assumed that the second language was acquired later in life because otherwise it's not really "acquiring a second language", it's "acquir

Good point. I guess I assumed that the second language was acquired later in life because otherwise it's not really "acquiring a second language", it's "acquiring multiple languages at the same time." In looking back over this, I stumbled over this study which seems to directly contradict the one in the original link: https://journals.sagepub.com/doi/10.1177/0956797612443836 https://journals.sagepub.com/doi/10.1177/0956797612443836 "This study explores whether the cognitive advantage associated with bilingualism in executive functioning extends to young immigrant children challenged by poverty..." which implies that there is a "cognitive advantage associated with bilingualism". So maybe the original study is just bogus. Or maybe this one is. Who knows? Sociology doesn't have a stellar reputation for generating reproducible results.