Takumi Uchihara gave a talk to the Japan Association for Language Education and Technology Methodology SIG about his research on spoken vocabulary acquisition. Read more about it at the link below.
Uchihara, Takumi. (2022) Assessing second language spoken vocabulary knoweldge. Invited talk at Japan Association for Language Education and Technology (LET), Methodology Special Interest Group.
https://mizumot.com/methodology/index.php/meeting/archives/36#post-detail (in Japanese)