“…Further, parent–child interactions during a variety of learning opportunities within and out of the home, such as singing songs to the child, rhyming, and visiting cultural places (e.g., Bradley and Caldwell, 1984 ; Melhuish et al, 2008 ), and the quality of interactions during play or shared reading are considered important aspects of the HLE (e.g., Son and Morrison, 2010 ; Linberg, 2018 ; Tamis-LeMonda et al, 2019 ; Lehrl et al, 2020a ). Although many research studies currently conceptualize the HLE domain-specifically according to the home literacy and/or numeracy model into aspects that capture formal and informal stimulation of language, literacy, and mathematics (e.g., Sénéchal and LeFevre, 2002 ; Manolitsis et al, 2013 ; Skwarchuk et al, 2014 ; Niklas et al, 2016 ; Lehrl et al, 2020a ), there are also numerous studies that combine the different facets of the HLE into one indicator to capture the overall stimulation of the HLE (e.g., Melhuish et al, 2008 ; Son and Morrison, 2010 ; Niklas and Schneider, 2017 ; Kuger et al, 2019 ).…”