“…The body of research on special education disproportionality is ever expanding. From a sociodemographic perspective, researchers have focused on a range of questions related to disproportionality, describing the extent to which a student’s race (e.g., Sullivan & Artiles, 2011; Zhang et al, 2014), linguistic background (e.g., Estrem & Zhang, 2010; Sullivan, 2011; Umansky et al, 2017), nation of origin (e.g., Cooc, 2019), family immigration history (e.g., Hibel & Jasper, 2012), and socioeconomic background (e.g., Kincaid & Sullivan, 2017) are predictive of being classified as disabled, both in special education generally (e.g., Anderson et al, 2015) and in specific disability categories (e.g., Bal et al, 2019; Dickerson et al, 2017; Mandell et al, 2008; Mandell et al, 2009; Morgan, Farkas, Hillemeier, Li, et al, 2017; Morrier & Hess, 2012; Robinson & Norton, 2019; Travers et al, 2011). There is also an emerging list of studies examining the differential rates in access to early-childhood interventions and supports (e.g., Mann et al, 2007; Morgan et al, 2012; Morrier & Gallagher, 2012).…”