%0 Journal Article %T Trends in Gender Differences in Academic Achievement from 1960 to 1994: An Analysis of Differences in Mean, Variance, and Extreme Scores %A Nowell, Amy %A Hedges, Larry %J Sex Roles %V 39 %N 2 %P 21-43 %@ 0360-0025 %D 2004-10-06 %I Kluwer Academic Publishers-Plenum Publishers %~ DeepDyve