相关Astudyfindsthatyoung的文学知识

问题详情：Astudyfindsthatyoungsterswhohaveasisterarehappier.Why?Theusualanswer—thatgirlsandwomenaremorelikelythanboysandmentotalkaboutemotions—issomehowunsatisfying,especiallytoaresearcherlikeofmywork...