Googling will show similar reporting in the literature over several decades. I don't think I've seen any contradictory research, though that's not surprising as this is just an interesting observation; there aren't any sophisticated, concrete explanatory models to critique--individualist vs collectivist dichotomy seems intuitive but not concrete on its own. Rather the focus seems to be on pragmatic therapy. It's noteworthy nonetheless, particularly as a reflection of American society, and of how culture informs pathology, a point usually made regarding more touchy-feely mental health issues and thus lacking punch.
Googling will show similar reporting in the literature over several decades. I don't think I've seen any contradictory research, though that's not surprising as this is just an interesting observation; there aren't any sophisticated, concrete explanatory models to critique--individualist vs collectivist dichotomy seems intuitive but not concrete on its own. Rather the focus seems to be on pragmatic therapy. It's noteworthy nonetheless, particularly as a reflection of American society, and of how culture informs pathology, a point usually made regarding more touchy-feely mental health issues and thus lacking punch.