“…First, the study relied on a community sample of teen mothers and their children in a northwest region of the United States. However, the general developmental trend of broadband ratings of internalizing and externalizing problems in our study sample is similar to those in other general community samples of children, with internalizing problems showing an increasing trend (Davis et al, 2015;Flouri et al, 2017;Olson et al, 2017) and externalizing problems showing a decreasing trend (Fanti & Henrich, 2010;Flouri et al, 2017), including high-risk samples, such as welfare system-involved children (Mowbray et al, 2018;Yoon et al, 2017), easing the concern of generalization to some degree. Nevertheless, given the specificity of our sample, generalization of the current study findings to the general population should be done cautiously.…”