Explaining the Gulf
According to Kevin A. Hassett in his April 22 column, a “gulf has emerged” between the academic achievements of boys and girls — women now earn 57 percent of bachelor’s degrees and 60 percent of master’s degrees, for example — and “new clues” explain the roots of these differences. A graph plots the differences of time spent on children’s cognitive activities (number of books a child owns, attendance at story hours, and visits to the library).
But of the six comparisons, the greatest difference has to do with library visits among two-year-olds. About 30 percent of girls visited a