“The University of Virginia’s National Marriage Project released a report in August 2011 titled ‘Why Marriage Matters’ that suggested that kids living in cohabitating households don’t do as well socially, educationally, and psychologically as kids living in intact married households.
“The authors partially blame the lack of stability in cohabitating households for this phenomena, noting that cohabitating couples with a child are more than twice as likely to split before the child turns 12 than married parents. However, these findings came under fire by critics who argued (among other things) that the lack of a marriage certificate alone can’t account for these problems among kids with unmarried parents. Rather, cohabitation rates are connected to race, class, and education, which — in turn — are factors in child development.
“Indeed, Huffington Post commentors were vocal about the National Marriage Project’s ‘right wing’ ideologies and the report’s ‘skewed’ results.”
Source: Ashley Reich of The Huffington Post