“…Research, ideally using population‐based data, is needed firstly to obtain robust, unbiased risk estimates, and secondly, to isolate the “effect” of parental intellectual disability, or rather the parenting practices of parents with intellectual disabilities, from the effects of adverse life conditions, including poverty and social isolation, on child health and development. In this special issue, Hindmarsh, Llewellyn, and Emerson analyse big data from the United Kingdom and find that children of mothers with intellectual impairment face a heightened risk of poor social‐emotional well‐being (at ages 3 and 5 years) and peer exclusion (by self‐report at age 7 years). However, the data also suggest that risk of poor child social‐emotional well‐being may diminish as child age increases, and may be explained by child exposure to environmental adversity, including household socioeconomic disadvantage.…”