http://www.nationalchildrensstudy.gov/about/funding/Pages/interagencycongressionalfunding.aspx http://www.nationalchildrensstudy.gov/about/funding/Pages/in...

http://www.nationalchildrensstudy.gov/about/funding/Pages/interagencycongressionalfunding.aspx http://www.nationalchildrensstudy.gov/about/funding/Pages/in... Table down at the bottom. As of 2011, 60% of the spend money was spent at the study sites themselves. From the text of that report, it sounds like recruitment was very expensive, which isn't surprising.