It is well know that many studies on same-sex parenting suffer from small, non-representative samples and a lack of statistical power. To address this, Rosenfeld et al analysed data from the 2000 US census and found that children raised by SSC ‘cannot be distinguished with statistical certainty from children of heterosexual married couples’, implying that there really was no difference in child outcomes from same sex parenting.
Allen et al reexamined Rosenfelds 2010 study and attempted to replicate his findings. He found that Rosenfeld had included in his study only those SSC that had been together more than 5 years, which meant that he excluded 700,000 households from his analysis. Other studies have suggested that SSC are less stable than married biological parents and by excluding the 700,000 overall, he excluded the great bulk of SSC.To address this, Allen reanalysed the sample with all the SSC included
1. Kids raised by SSC were 35% less likely to progress normally through school when compared with children raised by married biological parents.
2. Kids raised by SSC were 15% less likely to make normal progress than those raised by cohabiting heterosexual parents.
3. Kids raised by SSC had same outcomes as those raised by divorced men, divorced women and never married men.
‘Together, these findings are strikingly different from those of the original study-and the differences are large enough to be noteworthy. With respect to normal school progress, children residing in same-sex households can be distinguished statistically from those in traditional married homes and in heterosexual cohabiting households’ (Study author)
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