“…Specific to the oral language domain, criterion‐related validity evidence was gathered for the English IGDI measures (McConnell et al., 2012) through correlations with (a) the Preschool Early Literacy Indicators (PELI; Kaminski et al., 2014), yielding coefficients ranging from .36 to .67; (b) the Test of Preschool Early Literacy (TOPEL; Lonigan et al., 2007), yielding coefficients ranging from .36 to .77; and (c) the Peabody Picture Vocabulary Test‐4, (PPVT‐4; Dunn & Dunn, 2007), yielding coefficients ranging from .53 to .82. Criterion‐related validity evidence for oral language on the IGDIs‐E was gathered from correlations with the Preschool Language Scale‐5 Spanish (Zimmerman et al., 2011) yielding coefficients ranging from .24 to .31 (Durán et al., 2019). IGDI internal reliability estimates ranged from .74 to .90 (McConnell et al., 2014), and the standard error of measurement ranged from 0.35 to 0.52 logits for the majority of children's ability estimates; however, as with any measure, when children's performance was in the tails of item difficulty ranges, standard error of measurement was higher.…”