戎さんが gs-takeuchi でご紹介くださったリソースです。２）のCHILDESは私が大学院を出た頃からありますねー。長年かけて進化しているようです。

1)
the CDI (MacArthur-Bates Communicative Development Inventories)
http://www.sci.sdsu.edu/cdi/index.htm

バイリンガル環境で育つ子ども（幼児）の語彙力（理解、使用）などを見るのに
使えるインベントリー。

２）
CHILDES(Child Language Data Exchange System)
http://childes.psy.cmu.edu/
話し言葉コーパス

The Child Language Data Exchange System (CHILDES)  has contents (transcripts, audio, and video) in over 20 languages from 130 different corpora, all of which are publicly available worldwide. Recently, CHILDES has been made into a component of the larger corpus TalkBank, which also includes language data from aphasics, second language acquisition, conversation analysis, and classroom language learning.

CHILDES is currently directed and maintained by Brian MacWhinney at Carnegie Mellon University.