Figure 1: Number of words produced and understood by Spanish speakers in the 50th percentile according to the Spanish-language MacArthur-Bates Communicative Development Inventories Short Form I (S-CDI SFI) and Spanish-language MacArthur-Bates Communicative Development Inventories Short Form II (S-CDI SFII) (adapted from Jackson-Maldonado et al. [29]).