Parallel Lives, Different Outcomes A Twin Study of Academic Productivity in U.S. School Districts By Robert Hanna and Bo Morris July 9, 2014 Twin studies in the social sciences are powerful tools. When we follow twins r

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Date: 2014-07-11 13:37:51 Pennsylvania Clairton City School District Cornell School District		Parallel Lives, Different Outcomes A Twin Study of Academic Productivity in U.S. School Districts By Robert Hanna and Bo Morris July 9, 2014 Twin studies in the social sciences are powerful tools. When we follow twins r Add to Reading List Source URL: cdn.americanprogress.org Download Document from Source Website File Size: 139,23 KB Share Document on Facebook