MacArthur Communicative Development Inventories and
Adaptations into Other Languages
Lexical Development Norms

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English              Espaņol

Users of these norms for English should cite Dale, P. S., and Fenson, L. (1996). Lexical development norms for young children. Behavioral Research Methods, Instruments, & Computers, 28, 125-127. Users of norms for other languages should cite the publication specified on the introductory page for the language in question.