How Heritable are Parental Sensitivity and Limit‐Setting? A Longitudinal Child‐Based Twin Study on Observed Parenting

We examined the relative contribution of genetic, shared environmental and non‐shared environmental factors to the covariance between parental sensitivity and limit‐setting observed twice in a longitudinal study using a child‐based twin design. Parental sensitivity and parental limit‐setting were observed in 236 parents with each of their same‐sex toddler twin children ( M age = 3.8 years; 58% monozygotic). Bivariate behavioral genetic models...