Are women overrepresented in the field of child development studies?
Males have historically outnumbered their female counterparts in the field of psychology, but this has changed in recent years. According to the American Psychological Association


  Psychology, once a man's profession, now attracts mostly women. Data from the 1986 APA report, "The Changing Face of American Psychology," and the National Science Foundation show that the percentage of psychology PhDs awarded to men has fallen from nearly 70 percent in 1975 to less than 30 percent in 2008. (The data do not include PsyD degrees.)


Not only are females over-represented in psychology as a whole, they appear to be even more over-represented in the sub-fields of developmental and child psychology. This article from the APA states 


  In developmental and child psychology...female PhD recipients outnumber men by more than five to one.