How many are there in a book? <a href=" http://smallplanetgroup.com/problem-of-global-warming-essay/ ">akeelah and the bee essay</a> Monto and his team used a nationally representative sample of more than 1,800 18- to 25-year-olds in college, taken from the General Social Survey. Then they compared responses from 1988-1996 with those from 2002-2010, an era often described by a "hookup culture," he said.