Are you trying to select a topic for a developmental psychology paper? 

Try a broad search like "developmental psychology" or "aging" during the research phase of your paper or assignment and you're likely to be overwhelmed by the results.

But do a broad search when trying to select a topic and it will help you get a sense of some of the many ways scholars have approached an issue.  

Search Gale Virtual Reference Library (GVRL),which provides full-text encyclopedias,almanacs,and specialized reference sources for multidisciplinary research.
Or, search within individual Developmental Psychology encyclopedias: