By National Center for Policy Analysis 01/28/2015
“…In the United States, the average achievement difference in math between children from single- and two-parent families is 26.6 points — roughly equivalent to one. …”
Read the entire article: http://www.ncpa.org/sub/dpd/index.php?Article_ID=25300&utm_source=newsletter&utm_medium=email&utm_campaign=DPD